The Iranian Red Crescent Society ( IRCS ), officially the Red Crescent Society of the Islamic Republic of Iran ( Persian : جمعیت هلال احمر جمهوری اسلامی ایران , romanized : Jamʿiyyat-e Helâl-e Ahmar-e Jomhuri-ye Eslâmi-ye Irân ) is a non-governmental humanitarian organization in Iran . Founded as the Red Lion and Sun Society in 1922, it became affiliated with the International Federation of Red Cross and Red Crescent Societies (IFRC) in 1924 and changed its name and emblem in 1980, informing the international community of Hilal Ahmar adoption while assuming the right to adopt the former emblem in future.
130-572: The society is one of the world's largest national societies within IFRC and is noted for its special expertise in responding to earthquakes . Since inception, the IRCS has participated in a variety of public activities. Its core activity is to perform relief and rescue operations to help victims and the injured in natural disasters and accidents. It also engages a in wide range of humanitarian services in health and rehabilitation, training and research. The society had
260-601: A parliamentary republic with a consistent record of uninterrupted democratic elections , although the Botswana Democratic Party was the only ruling party from independence until 2024. As of 2024 , Botswana is the third-least corrupt country in Africa, according to the Corruption Perceptions Index published by Transparency International . The economy is dominated by mining and tourism . Botswana has
390-729: A tsunami . Earthquakes can trigger landslides . Earthquakes' occurrence is influenced by tectonic movements along faults, including normal, reverse (thrust), and strike-slip faults, with energy release and rupture dynamics governed by the elastic-rebound theory . Efforts to manage earthquake risks involve prediction, forecasting, and preparedness, including seismic retrofitting and earthquake engineering to design structures that withstand shaking. The cultural impact of earthquakes spans myths, religious beliefs, and modern media, reflecting their profound influence on human societies. Similar seismic phenomena, known as marsquakes and moonquakes , have been observed on other celestial bodies, indicating
520-414: A 'grey zone' between electoral democracy and electoral autocracy . Furthermore, they show that Botswana lost its status as a "liberal democracy" in 2021, with its liberal, participatory and deliberative components decreasing "at a statistically significant level", with the latter component being noted as becoming "significantly worse". The 2023 Transparency International Corruption Index ranks Botswana
650-459: A GDP per capita of about US$ 70 per year in the late 1960s —Botswana has transformed itself into an upper middle-income country. GDP per capita grew from $ 439 in 1950 to $ 15,842 in 2018. Although Botswana was resource-abundant, a good institutional framework allowed the country to reinvest resource-income to generate stable future income. By one estimate, it has the fourth-highest gross national income at purchasing power parity in Africa, giving it
780-616: A cultural and heritage site in Botswana initially occupied towards the end of the Great Zimbabwe period (1250–1450), with stone walls that have an average height of 1.8 metres. The site is a respected place for the people living in the region, and it is believed that the chief lived on the top of the hill with his helpers or assistants. These states, located outside of current Botswana's borders, appear to have kept massive herds of cattle—apparently at numbers approaching modern cattle density—in what
910-1743: A daily newspaper. The Iranian Red Crescent Medical Journal , an English language peer-reviewed journal on clinical and scientific medicine, is another publication of IRCS. Heads of the society have been: [REDACTED] Afghanistan [REDACTED] Albania [REDACTED] Algeria [REDACTED] Andorra [REDACTED] Angola [REDACTED] Antigua and Barbuda [REDACTED] Argentina [REDACTED] Armenia [REDACTED] Australia [REDACTED] Austria [REDACTED] Azerbaijan [REDACTED] The Bahamas [REDACTED] Bahrain [REDACTED] Bangladesh [REDACTED] Barbados [REDACTED] Belarus (suspended) [REDACTED] Belgium [REDACTED] Belize [REDACTED] Benin [REDACTED] Bhutan [REDACTED] Bolivia [REDACTED] Bosnia and Herzegovina [REDACTED] Botswana [REDACTED] Brazil [REDACTED] Brunei [REDACTED] Bulgaria [REDACTED] Burkina Faso [REDACTED] Burundi [REDACTED] Cambodia [REDACTED] Cameroon [REDACTED] Canada [REDACTED] Cape Verde [REDACTED] Central African Republic [REDACTED] Chad [REDACTED] Chile [ es ] [REDACTED] China [REDACTED] Colombia [REDACTED] Comoros [REDACTED] Congo [ it ] [REDACTED] Congo, Democratic Republic of
1040-589: A democratic self-government in Botswana. An independence conference was held in London in February 1966. The seat of government was moved in 1965 from Mahikeng in South Africa, to the newly established Gaborone , located near Botswana's border with South Africa. Based on the 1965 constitution, the country held its first general elections under universal suffrage and gained independence on 30 September 1966. Seretse Khama ,
1170-571: A depth of less than 70 km (43 mi) are classified as "shallow-focus" earthquakes, while those with a focal depth between 70 and 300 km (43 and 186 mi) are commonly termed "mid-focus" or "intermediate-depth" earthquakes. In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, deep-focus earthquakes may occur at much greater depths (ranging from 300 to 700 km (190 to 430 mi)). These seismically active areas of subduction are known as Wadati–Benioff zones . Deep-focus earthquakes occur at
1300-488: A depth where the subducted lithosphere should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep-focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure. Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes . Such earthquakes can serve as an early warning of volcanic eruptions, as during
1430-475: A few exceptions to this: Supershear earthquake ruptures are known to have propagated at speeds greater than the S wave velocity. These have so far all been observed during large strike-slip events. The unusually wide zone of damage caused by the 2001 Kunlun earthquake has been attributed to the effects of the sonic boom developed in such earthquakes. Slow earthquake ruptures travel at unusually low velocities. A particularly dangerous form of slow earthquake
SECTION 10
#17328524640971560-415: A half years of current imports. The constitution provides for an independent judiciary, and the government respects this in practice. The legal system is sufficient to conduct secure commercial dealings, although a growing backlog of cases prevents timely trials. Botswana is ranked second only to South Africa among sub-Saharan African countries in the 2014 International Property Rights Index. In Botswana,
1690-459: A leader in the independence movement, was elected as the first president, and subsequently re-elected twice. Khama died in office in 1980. The presidency passed to the sitting vice-president, Quett Masire , who was elected in his own right in 1984 and re-elected in 1989 and 1994. Masire retired from office in 1998. He was succeeded by Festus Mogae , who was elected in 1999 and re-elected in 2004. The presidency passed in 2008 to Ian Khama (son of
1820-562: A leader named Kgabo II, made their way into the southern Kalahari by AD 1500, at the latest, and his people drove the Bakgalagadi inhabitants west into the desert. Over the years, several offshoots of the Bakwena moved into adjoining territories. The Bangwaketse occupied areas to the west, while the Bangwato moved northeast into former Kalanga areas. Not long afterwards, a Bangwato offshoot known as
1950-603: A particular location in the Earth is the average rate of seismic energy release per unit volume. One of the most devastating earthquakes in recorded history was the 1556 Shaanxi earthquake , which occurred on 23 January 1556 in Shaanxi , China. More than 830,000 people died. Most houses in the area were yaodongs —dwellings carved out of loess hillsides—and many victims were killed when these structures collapsed. The 1976 Tangshan earthquake , which killed between 240,000 and 655,000 people,
2080-533: A per capita GDP ( purchasing power parity ) of about $ 20,158 as of 2024 . Botswana is the world's biggest diamond-producing country. Its relatively high gross national income per capita (by some estimates the fourth-largest in Africa) gives the country a relatively high standard of living and the second-highest Human Development Index of continental Sub-Saharan Africa (after South Africa). Despite this, Botswana continues to grapple with high unemployment rates. Botswana
2210-484: A project to reintroduce indigenous vegetation into communities in Kgalagadi South, Kweneng North and Boteti. Reintroduction of indigenous vegetation will help reduce the degradation of the land. The United States Government has also entered into an agreement with Botswana, giving them US$ 7 million to reduce Botswana's debt by US$ 8.3 million. The US stipulated that Botswana will focus on more extensive conservation of
2340-437: A relatively high standard of living in Africa, around that of Mexico. As of 2022, the unemployment rate stood at 25.4%, while youth unemployment reached 45.41% in 2023. The latest available data from 2015/2016 estimate that 17.2% of Botswana’s population is multidimensionally poor , with an additional 19.7% at risk. The Ministry of Trade and Industry of Botswana is responsible for promoting business development throughout
2470-730: A single rupture) are approximately 1,000 km (620 mi). Examples are the earthquakes in Alaska (1957) , Chile (1960) , and Sumatra (2004) , all in subduction zones. The longest earthquake ruptures on strike-slip faults, like the San Andreas Fault ( 1857 , 1906 ), the North Anatolian Fault in Turkey ( 1939 ), and the Denali Fault in Alaska ( 2002 ), are about half to one third as long as
2600-542: A term for all citizens of Botswana. It is estimated that hominids lived in Botswana during the Pleistocene . Stone tools and animal remains indicate that all areas of the country were inhabited at least 400,000 years ago. It was claimed to have been the birthplace of all modern humans from around 200,000 years ago. Evidence left by modern humans, such as cave paintings, is about 73,000 years old. The earliest known inhabitants of southern Africa are thought to have been
2730-565: A therapeutic approach and was regarded a major healthcare institution with thousands of hospital beds across the country until 1979, when all of its medical facilities were transferred to the Ministry of Health . IRCS is an example of strong national societies that play an important role domestically and is held in high esteem by the Iranian general public. IRCS has 30 governorate headquarters, one in each province of Iran , and 330 branches throughout
SECTION 20
#17328524640972860-505: A vital role in the longevity of Toutswemogala Hill's extended occupation, as many grain storage structures have also been found on the site. Many different stratified layers of housing floors further signal continuous occupation over hundreds of years. The arrival of the Tswana speakers' ancestors who came to control the region has yet to be dated precisely. Members of the Bakwena , a chieftaincy under
2990-411: Is a legal penalty for murder in Botswana, and executions are carried out by hanging. Many of the indigenous San people have been forcibly relocated from their land to reservations. To make them relocate, they were denied access to water on their land and faced arrest if they hunted, which was their primary source of food. Their lands lie in the middle of the world's richest diamond field. Officially,
3120-745: Is a member of the Southern African Customs Union , the Southern African Development Community , the Commonwealth of Nations and the United Nations . The country's name means "Land of the Tswana ", referring to the dominant ethnic group in Botswana . The Constitution of Botswana recognizes a homogeneous Tswana state. The demonym Batswana was originally applied to the Tswana, and has also come to be used generally as
3250-515: Is a theory that earthquakes can recur in a regular pattern. Earthquake clustering has been observed, for example, in Parkfield, California where a long-term research study is being conducted around the Parkfield earthquake cluster. An aftershock is an earthquake that occurs after a previous earthquake, the mainshock. Rapid changes of stress between rocks, and the stress from the original earthquake are
3380-410: Is called the hypocenter or focus, while the ground level directly above it is the epicenter . Earthquakes are primarily caused by geological faults , but also by volcanic activity , landslides, and other seismic events. The frequency, type, and size of earthquakes in an area define its seismic activity, reflecting the average rate of seismic energy release. Significant historical earthquakes include
3510-520: Is converted into heat generated by friction. Therefore, earthquakes lower the Earth's available elastic potential energy and raise its temperature, though these changes are negligible compared to the conductive and convective flow of heat out from the Earth's deep interior. There are three main types of fault, all of which may cause an interplate earthquake : normal, reverse (thrust), and strike-slip. Normal and reverse faulting are examples of dip-slip, where
3640-400: Is divided into 754 Flinn–Engdahl regions (F-E regions), which are based on political and geographical boundaries as well as seismic activity. More active zones are divided into smaller F-E regions whereas less active zones belong to larger F-E regions. Standard reporting of earthquakes includes its magnitude , date and time of occurrence, geographic coordinates of its epicenter , depth of
3770-865: Is now the Central District. This massive cattle-raising complex prospered until around 1300 and seems to have regressed following the collapse of Mapungubwe. During this era, the first Tswana-speaking groups, the Bakgalagadi , moved into the southern areas of the Kalahari . These various peoples were connected to trade routes that ran via the Limpopo River to the Indian Ocean ; trade goods from Asia such as beads made their way to Botswana, most likely in exchange for ivory, gold and rhinoceros horn . The Toutswemogala Hill Iron Age settlement's radio-carbon dates range from
3900-564: Is predominantly flat, tending towards gently rolling tableland . Botswana is dominated by the Kalahari Desert , which covers up to 70% of its land surface. The Limpopo River Basin, the major landform of all of southern Africa, lies partly in Botswana, with the basins of its tributaries, the Notwane , Bonwapitse , Mahalapye , Lotsane , Motloutse and the Shashe , located in the eastern part of
4030-532: Is probably a statistical fluctuation rather than a systematic trend. More detailed statistics on the size and frequency of earthquakes is available from the United States Geological Survey. A recent increase in the number of major earthquakes has been noted, which could be explained by a cyclical pattern of periods of intense tectonic activity, interspersed with longer periods of low intensity. However, accurate recordings of earthquakes only began in
Iranian Red Crescent Society - Misplaced Pages Continue
4160-423: Is proportional to the area of the fault that ruptures and the stress drop. Therefore, the longer the length and the wider the width of the faulted area, the larger the resulting magnitude. The most important parameter controlling the maximum earthquake magnitude on a fault, however, is not the maximum available length, but the available width because the latter varies by a factor of 20. Along converging plate margins,
4290-410: Is the tsunami earthquake , observed where the relatively low felt intensities, caused by the slow propagation speed of some great earthquakes, fail to alert the population of the neighboring coast, as in the 1896 Sanriku earthquake . During an earthquake, high temperatures can develop at the fault plane, increasing pore pressure and consequently vaporization of the groundwater already contained within
4420-636: Is the third-least corrupt country in Africa, just below Cabo Verde and the Seychelles . Botswana is also a member of the Commonwealth of Nations . At the time of independence, Botswana had no armed forces. It was only after the Rhodesian and South African armies attacked the Zimbabwe People's Revolutionary Army and Umkhonto we Sizwe bases respectively that the Botswana Defence Force (BDF)
4550-408: Is to draw from "indigenous knowledge and traditional land management systems". The leaders of this movement are supposed to be the people in the community to draw indigenous people in, which in turn increases their opportunities to earn an income, thus decreasing poverty. The UNDP also stated that the government has to effectively implement policies to allow people to manage their own local resources and
4680-516: Is unclear when Bantu -speaking peoples first moved into the country from the north, although AD 600 seems to be a consensus estimate. In that era, the ancestors of the modern-day Kalanga moved into what is now the north-eastern area of the country. These proto-Kalanga were closely connected to states in Zimbabwe as well as to the Mapungubwe state. One notable remanant of this period is Domboshaba ruins,
4810-4037: The [REDACTED] Cook Islands [REDACTED] Costa Rica [ es ] [REDACTED] Côte d'Ivoire [REDACTED] Croatia [REDACTED] Cuba [ es ] [REDACTED] Cyprus [REDACTED] Czech Republic [REDACTED] Denmark [REDACTED] Djibouti [REDACTED] Dominica [REDACTED] Dominican Republic [REDACTED] Ecuador [ es ] [REDACTED] Egypt [REDACTED] El Salvador [REDACTED] Equatorial Guinea [REDACTED] Eritrea [REDACTED] Estonia [REDACTED] Eswatini [REDACTED] Ethiopia [REDACTED] Fiji [REDACTED] Finland [REDACTED] France [REDACTED] Gabon [REDACTED] Gambia [REDACTED] Georgia [REDACTED] Germany [REDACTED] Ghana [REDACTED] Greece [REDACTED] Grenada [REDACTED] Guatemala [REDACTED] Guinea [REDACTED] Guinea-Bissau [REDACTED] Guyana [REDACTED] Haiti [REDACTED] Honduras [REDACTED] Hungary [REDACTED] Iceland [REDACTED] India [REDACTED] Indonesia [REDACTED] Iran [REDACTED] Iraq [REDACTED] Ireland [REDACTED] Israel [REDACTED] Italy [REDACTED] Jamaica [REDACTED] Japan [REDACTED] Jordan [REDACTED] Kazakhstan [REDACTED] Kenya [REDACTED] Kiribati [REDACTED] Korea, North [REDACTED] Korea, South [REDACTED] Kuwait [REDACTED] Kyrgyzstan [REDACTED] Laos [REDACTED] Latvia [REDACTED] Lebanon [REDACTED] Lesotho [REDACTED] Liberia [REDACTED] Libya [REDACTED] Liechtenstein [REDACTED] Lithuania [REDACTED] Luxembourg [REDACTED] Madagascar [REDACTED] Malawi [REDACTED] Malaysia [REDACTED] Maldives [REDACTED] Mali [REDACTED] Malta [REDACTED] Marshall Islands [REDACTED] Mauritania [REDACTED] Mauritius [REDACTED] Mexico [REDACTED] Micronesia, Federated States of [REDACTED] Moldova [REDACTED] Monaco [REDACTED] Mongolia [REDACTED] Montenegro [REDACTED] Morocco [REDACTED] Mozambique [REDACTED] Myanmar [REDACTED] Namibia [REDACTED] Nepal [REDACTED] Netherlands [REDACTED] New Zealand [REDACTED] Nicaragua [REDACTED] Niger [REDACTED] Nigeria [REDACTED] North Macedonia [REDACTED] Norway [REDACTED] Pakistan [REDACTED] Palau [REDACTED] Palestine [REDACTED] Panama [REDACTED] Papua New Guinea [REDACTED] Paraguay [REDACTED] Peru (suspended) [REDACTED] Philippines [REDACTED] Poland [REDACTED] Portugal [ pt ] [REDACTED] Qatar [REDACTED] Republika Srpska [REDACTED] Romania [REDACTED] Russia [REDACTED] Rwanda [REDACTED] Saint Kitts and Nevis [REDACTED] Saint Lucia [REDACTED] Saint Vincent and
4940-501: The 1556 Shaanxi earthquake in China, with over 830,000 fatalities, and the 1960 Valdivia earthquake in Chile, the largest ever recorded at 9.5 magnitude. Earthquakes result in various effects, such as ground shaking and soil liquefaction , leading to significant damage and loss of life. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause
5070-400: The 1980 eruption of Mount St. Helens . Earthquake swarms can serve as markers for the location of the flowing magma throughout the volcanoes. These swarms can be recorded by seismometers and tiltmeters (a device that measures ground slope) and used as sensors to predict imminent or upcoming eruptions. A tectonic earthquake begins as an area of initial slip on the fault surface that forms
5200-587: The 2004 Indian Ocean earthquake is simultaneously one of the deadliest earthquakes in history. Earthquakes that caused the greatest loss of life, while powerful, were deadly because of their proximity to either heavily populated areas or the ocean, where earthquakes often create tsunamis that can devastate communities thousands of kilometers away. Regions most at risk for great loss of life include those where earthquakes are relatively rare but powerful, and poor regions with lax, unenforced, or nonexistent seismic building codes. Tectonic earthquakes occur anywhere on
5330-558: The Battle of Dimawe and, after about eight years of intermittent tensions and hostilities, eventually came to a peace agreement in Potchefstroom in 1860. From that point on, the modern-day border between South Africa and Botswana was agreed on, and the Afrikaners and Batswana traded and worked together comparatively peacefully. In 1884, Batawana, a northern-based Tswana clan's cavalry under
Iranian Red Crescent Society - Misplaced Pages Continue
5460-480: The Chobe District has the world's largest concentration of African elephants . The park covers about 11,000 km (4,247 sq mi) and supports about 350 species of birds. In Botswana forest cover is around 27% of the total land area, equivalent to 15,254,700 hectares (ha) of forest in 2020, down from 18,803,700 hectares (ha) in 1990. In 2020, naturally regenerating forest covered 15,254,700 hectares, of
5590-931: The German Empire and Britain coveted the territory of Botswana. During the Berlin Conference , Britain decided to annex Botswana to safeguard the Road to the North and thus connect the Cape Colony to its territories further north. It unilaterally annexed Tswana territories in January 1885 and then sent the Warren Expedition north to consolidate control over the area and convince the chiefs to accept British overrule. Despite their misgivings, they eventually acquiesced to this fait accompli . In 1890, areas north of 22 degrees were added to
5720-490: The Himalayan Mountains . With the rapid growth of mega-cities such as Mexico City, Tokyo, and Tehran in areas of high seismic risk , some seismologists are warning that a single earthquake may claim the lives of up to three million people. While most earthquakes are caused by the movement of the Earth's tectonic plates , human activity can also produce earthquakes. Activities both above ground and below may change
5850-483: The Italian Red Cross ) Earthquakes An earthquake – also called a quake , tremor , or temblor – is the shaking of the Earth 's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves . Earthquakes can range in intensity , from those so weak they cannot be felt, to those violent enough to propel objects and people into
5980-434: The Kalahari Desert . It is bordered by South Africa to the south and southeast, Namibia to the west and north, Zambia to the north and Zimbabwe to the northeast. With a population of slightly over 2.4 million people and a comparable land area to France , Botswana is one of the most sparsely populated countries in the world. It is essentially the nation-state of the Tswana people , who constitute nearly 80 per cent of
6110-480: The Kgabo Commission in 1991, factionalism and political rivalries have dominated Botswana politics. The Barata-Phathi faction was led by Peter Mmusi , Daniel Kwelagobe and Ponatshego Kedikilwe , while the A Team faction was led by Mompati Merafhe and Jacob Nkate. When Festus Mogae and Ian Khama became president and vice-president, respectively, they aligned with the A Team. Khama effectively expelled
6240-456: The President of Iran . This procedure is in contrast with the elective nature of a society chairman as suggested by the IFRC. The secretary general is responsible for the administrative and executive affairs. IRCS owns and runs Helal Iran Textile Industries Co., a producer of blankets and tents. SOHA, a manufacturer of disposable medical devices is also owned by the society, as well as Shahrvand ,
6370-573: The RCSC ) [REDACTED] Kosovo (non-member) [REDACTED] Macau (autonomous branch of the RCSC ) [REDACTED] Oman (non-member) [REDACTED] Ossetia, South (non-member) [REDACTED] SADR (pending recognition and admission) [REDACTED] Somaliland (non-member) [REDACTED] Taiwan (former member) [REDACTED] Transnistria (non-member) [REDACTED] Vatican City (autonomous branch of
6500-581: The Umbrella for Democratic Change has operated as a coalition of opposition parties. The most recent election was held in 2024 , with the Botswana Democratic Party losing its majority for the first time in history, ending its 58 year rule over the country. The election saw Duma Boko being elected as president. In Botswana's early years, its politics were managed by President Seretse Khama and vice-president (later president) Quett Masire . Since
6630-426: The brittle-ductile transition zone and upwards by the ground surface. The mechanics of this process are poorly understood because it is difficult either to recreate such rapid movements in a laboratory or to record seismic waves close to a nucleation zone due to strong ground motion. In most cases, the rupture speed approaches, but does not exceed, the shear wave (S wave) velocity of the surrounding rock. There are
SECTION 50
#17328524640976760-413: The least principal stress. Strike-slip faulting is intermediate between the other two types described above. This difference in stress regime in the three faulting environments can contribute to differences in stress drop during faulting, which contributes to differences in the radiated energy, regardless of fault dimensions. For every unit increase in magnitude, there is a roughly thirty-fold increase in
6890-488: The 1920 establishment of two advisory councils to represent both Africans and Europeans. The African Council consisted of the eight heads of the Tswana tribes and some elected members. Proclamations in 1934 regulated tribal rule and powers. A European-African advisory council was formed in 1951, and the 1961 constitution established a consultative legislative council. In June 1964, the United Kingdom accepted proposals for
7020-541: The 20th century and has been inferred for older anomalous clusters of large earthquakes in the Middle East. It is estimated that around 500,000 earthquakes occur each year, detectable with current instrumentation. About 100,000 of these can be felt. Minor earthquakes occur very frequently around the world in places like California and Alaska in the U.S., as well as in El Salvador, Mexico, Guatemala, Chile, Peru, Indonesia,
7150-433: The 21st century. Seismic waves travel through the Earth's interior and can be recorded by seismometers at great distances. The surface-wave magnitude was developed in the 1950s as a means to measure remote earthquakes and to improve the accuracy for larger events. The moment magnitude scale not only measures the amplitude of the shock but also takes into account the seismic moment (total rupture area, average slip of
7280-485: The 7th to late 19th century, indicating it was occupied for more than 1,000 years. The hill was part of the formation of early states in southern Africa, with cattle as a major source of economy. The Toutswe settlement includes house-floors, large heaps of vitrified cow dung, and burials while the outstanding structure is the stone wall. Around 1000 AD, the Toutswe people moved into Botswana. However, agriculture also played
7410-402: The A Team from the party in 2010 after he became president. A new rivalry formed in 2018 when Khama's chosen successor, Mokgweetsi Masisi, became president. He opposed Khama, and the two formed a political rivalry that continues to loom over Batswana politics in the 2020s. Botswana was ranked as a "flawed democracy" and 33rd out of 167 states in the 2023 Democracy Index (The Economist) , which
7540-578: The Batawana migrated into the Okavango Delta , probably in the 1790s. The first written records relating to modern-day Botswana appear in 1824. These records show that the Bangwaketse had become the predominant power in the region. Under the rule of Makaba II, the Bangwaketse kept vast herds of cattle in well-protected desert areas, and used their military prowess to raid their neighbours. Other chiefdoms in
7670-588: The Batswana—most of whom were driven into the desert or sanctuary areas such as hilltops and caves. Only after 1843, when the Amandebele moved into western Zimbabwe, did this threat subside. During the 1840s and 1850s, trade with Cape Colony -based merchants opened up and enabled the Batswana chiefdoms to rebuild. The Bakwena , Bangwaketse, Bangwato and Batawana cooperated to control the lucrative ivory trade and used
7800-399: The Earth's core was located in 1913 by Beno Gutenberg . S waves and later arriving surface waves do most of the damage compared to P waves. P waves squeeze and expand the material in the same direction they are traveling, whereas S waves shake the ground up and down and back and forth. Earthquakes are not only categorized by their magnitude but also by the place where they occur. The world
7930-481: The Earth. Also, the depth of the hypocenter can be computed roughly. P wave speed S waves speed As a consequence, the first waves of a distant earthquake arrive at an observatory via the Earth's mantle. On average, the kilometer distance to the earthquake is the number of seconds between the P- and S wave times 8. Slight deviations are caused by inhomogeneities of subsurface structure. By such analysis of seismograms,
SECTION 60
#17328524640978060-1997: The Grenadines [REDACTED] Samoa [REDACTED] San Marino [REDACTED] São Tomé and Príncipe [REDACTED] Saudi Arabia [REDACTED] Senegal [REDACTED] Serbia [REDACTED] Seychelles [REDACTED] Sierra Leone [REDACTED] Singapore [REDACTED] Slovakia [REDACTED] Slovenia [REDACTED] Solomon Islands [REDACTED] Somalia [REDACTED] South Africa [REDACTED] South Sudan [REDACTED] Spain [REDACTED] Sri Lanka [REDACTED] Sudan [REDACTED] Suriname [REDACTED] Sweden [REDACTED] Switzerland [REDACTED] Syria [REDACTED] Taiwan (Republic of China) [REDACTED] Tajikistan [REDACTED] Tanzania [REDACTED] Thailand [REDACTED] Timor-Leste [REDACTED] Togo [REDACTED] Tonga [REDACTED] Trinidad and Tobago [REDACTED] Tunisia [REDACTED] Turkey [REDACTED] Turkmenistan [REDACTED] Tuvalu [REDACTED] Uganda [REDACTED] Ukraine [REDACTED] United Arab Emirates [REDACTED] United Kingdom [REDACTED] United States [REDACTED] Uruguay [REDACTED] Uzbekistan [REDACTED] Vanuatu [REDACTED] Venezuela [REDACTED] Viet Nam [REDACTED] Yemen [REDACTED] Zambia [REDACTED] Zimbabwe [REDACTED] Abkhazia (no-member) [REDACTED] Cyprus, North (non-member) [REDACTED] Hong Kong (autonomous branch of
8190-774: The Okavango Delta) are major tourist destinations. Other reserves include the Central Kalahari Game Reserve located in the Kalahari Desert in Ghanzi District ; Makgadikgadi Pans National Park and Nxai Pan National Park are in the Central District in the Makgadikgadi Pan . Botswana faces two major environmental problems, drought and desertification , which are heavily linked. Three-quarters of
8320-558: The Philippines, Iran, Pakistan, the Azores in Portugal, Turkey, New Zealand, Greece, Italy, India, Nepal, and Japan. Larger earthquakes occur less frequently, the relationship being exponential ; for example, roughly ten times as many earthquakes larger than magnitude 4 occur than earthquakes larger than magnitude 5. In the (low seismicity) United Kingdom, for example, it has been calculated that
8450-539: The United Kingdom's Westminster system and the Tswana people's tribal governments. Botswana has a centralised government in which national law supersedes local law. Local laws are developed by local councils and district councils. They are heavily influenced by tribal governments, which are led by the tribe's chief. The Parliament of Botswana consists of the President and the National Assembly , which serves as
8580-586: The air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. In its most general sense, the word earthquake is used to describe any seismic event that generates seismic waves. Earthquakes can occur naturally or be induced by human activities, such as mining , fracking , and nuclear tests . The initial point of rupture
8710-549: The area, by this time, had capitals of 10,000 or so and were fairly prosperous. This equilibrium came to end during the Mfecane period, 1823–1843, when a succession of invading peoples from South Africa entered the country. Although the Bangwaketse were able to defeat the invading Bakololo in 1826, over time, all the major chiefdoms in Botswana were attacked, weakened and impoverished. The Bakololo and AmaNdebele raided repeatedly and took large numbers of cattle, women and children from
8840-463: The average recurrences are: an earthquake of 3.7–4.6 every year, an earthquake of 4.7–5.5 every 10 years, and an earthquake of 5.6 or larger every 100 years. This is an example of the Gutenberg–Richter law . The number of seismic stations has increased from about 350 in 1931 to many thousands today. As a result, many more earthquakes are reported than in the past, but this is because of
8970-404: The brittle crust. Thus, earthquakes with magnitudes much larger than 8 are not possible. In addition, there exists a hierarchy of stress levels in the three fault types. Thrust faults are generated by the highest, strike-slip by intermediate, and normal faults by the lowest stress levels. This can easily be understood by considering the direction of the greatest principal stress, the direction of
9100-555: The cause of other earthquakes in the past century. A Columbia University paper suggested that the 8.0 magnitude 2008 Sichuan earthquake was induced by loading from the Zipingpu Dam , though the link has not been conclusively proved. The instrumental scales used to describe the size of an earthquake began with the Richter scale in the 1930s. It is a relatively simple measurement of an event's amplitude, and its use has become minimal in
9230-630: The command of Kgosi Moremi, fought and defeated the Ndebele's invasion of northern Botswana at the Battle of Khutiyabasadi . This is the start of the collapse of the Ndebele Kingdom in Zimbabwe and it helped the Tswana speaking authority. Due to newly peaceful conditions, trade thrived between 1860 and 1880. Christian missionaries were able to take advantage of this. The Lutherans and the London Missionary Society both became established in
9360-459: The country by 1856. By 1880, every major village had a resident missionary, and their influence slowly grew. Khama III (reigned 1875–1923) was the first of the Tswana chiefs to make Christianity a state religion, and a great deal of Tswana customary law changed as a result. Christianity became the de facto official religion in all the chiefdoms by World War I . During the Scramble for Africa , both
9490-403: The country's human and animal populations depend on groundwater due to drought. Groundwater use through deep borehole drilling has somewhat eased the effects of drought. Surface water is scarce in Botswana, and less than 5% of the agriculture in the country is sustainable by rainfall. In the remaining 95% of the country, raising livestock is the primary source of rural income. Approximately 71% of
9620-416: The country's land is used for communal grazing, which has been a major cause of the desertification and the accelerating soil erosion in the country. Since raising livestock has been profitable for the people of Botswana, they continue to exploit the land with dramatically increasing numbers of animals. From 1966 to 1991, the livestock population grew from 1.7 million to 5.5 million. Similarly,
9750-465: The country, as of 2005. Based on the latest structure, it is made up of four departments: relief and rescue ( emdād wa najāt ), medical provisions ( tadārokāt-e pezeški ), volunteers ( dāvṭalabān ), and youth ( javānān ). The latter is largely made up of high school and university student members. According to the law enacted by the Iranian Parliament , the society is run by a chairman appointed by
9880-537: The country. The Notwane provides water to the capital through the Gaborone Dam . The Chobe River meets with the Zambezi River at a place called Kazungula . Botswana has diverse areas of wildlife habitat. In addition to the delta and desert areas, there are grasslands and savannas . Northern Botswana has one of the few remaining large populations of the endangered African wild dog . Chobe National Park in
10010-591: The country. According to the International Monetary Fund , economic growth averaged over 9% per year from 1966 to 1999. Botswana has a high level of economic freedom compared to other African countries. The government has maintained a sound fiscal policy , despite consecutive budget deficits in 2002 and 2003, and a negligible level of foreign debt . It earned the highest sovereign credit rating in Africa and has stockpiled foreign exchange reserves (over $ 7 billion in 2005/2006) amounting to almost two and
10140-521: The dip angle of the rupture plane is very shallow, typically about 10 degrees. Thus, the width of the plane within the top brittle crust of the Earth can reach 50–100 km (31–62 mi) (such as in Japan, 2011 , or in Alaska, 1964 ), making the most powerful earthquakes possible. The majority of tectonic earthquakes originate in the Ring of Fire at depths not exceeding tens of kilometers. Earthquakes occurring at
10270-678: The displacement along the fault is in the direction of dip and where movement on them involves a vertical component. Many earthquakes are caused by movement on faults that have components of both dip-slip and strike-slip; this is known as oblique slip. The topmost, brittle part of the Earth's crust, and the cool slabs of the tectonic plates that are descending into the hot mantle, are the only parts of our planet that can store elastic energy and release it in fault ruptures. Rocks hotter than about 300 °C (572 °F) flow in response to stress; they do not rupture in earthquakes. The maximum observed lengths of ruptures and mapped faults (which may break in
10400-439: The distance from the earthquake and the underlying rock or soil makeup. The first scale for measuring earthquake magnitudes was developed by Charles Francis Richter in 1935. Subsequent scales ( seismic magnitude scales ) have retained a key feature, where each unit represents a ten-fold difference in the amplitude of the ground shaking and a 32-fold difference in energy. Subsequent scales are also adjusted to have approximately
10530-543: The early 1900s, so it is too early to categorically state that this is the case. Most of the world's earthquakes (90%, and 81% of the largest) take place in the 40,000-kilometre-long (25,000 mi), horseshoe-shaped zone called the circum-Pacific seismic belt, known as the Pacific Ring of Fire , which for the most part bounds the Pacific plate . Massive earthquakes tend to occur along other plate boundaries too, such as along
10660-403: The earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane . The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increases the frictional resistance. Most fault surfaces do have such asperities, which leads to a form of stick-slip behavior . Once
10790-426: The earthquakes strike a fault in clusters, each triggered by the shaking or stress redistribution of the previous earthquakes. Similar to aftershocks but on adjacent segments of fault, these storms occur over the course of years, with some of the later earthquakes as damaging as the early ones. Such a pattern was observed in the sequence of about a dozen earthquakes that struck the North Anatolian Fault in Turkey in
10920-498: The energy released. For instance, an earthquake of magnitude 6.0 releases approximately 32 times more energy than a 5.0 magnitude earthquake and a 7.0 magnitude earthquake releases 1,000 times more energy than a 5.0 magnitude earthquake. An 8.6-magnitude earthquake releases the same amount of energy as 10,000 atomic bombs of the size used in World War II . This is so because the energy released in an earthquake, and thus its magnitude,
11050-611: The epicenter, geographical region, distances to population centers, location uncertainty, several parameters that are included in USGS earthquake reports (number of stations reporting, number of observations, etc.), and a unique event ID. Botswana Botswana , officially the Republic of Botswana , is a landlocked country in Southern Africa . Botswana is topographically flat, with approximately 70 per cent of its territory part of
11180-458: The fact that no single earthquake in the sequence is the main shock, so none has a notably higher magnitude than another. An example of an earthquake swarm is the 2004 activity at Yellowstone National Park . In August 2012, a swarm of earthquakes shook Southern California 's Imperial Valley , showing the most recorded activity in the area since the 1970s. Sometimes a series of earthquakes occur in what has been called an earthquake storm , where
11310-462: The fault has locked, continued relative motion between the plates leads to increasing stress and, therefore, stored strain energy in the volume around the fault surface. This continues until the stress has risen sufficiently to break through the asperity, suddenly allowing sliding over the locked portion of the fault, releasing the stored energy . This energy is released as a combination of radiated elastic strain seismic waves , frictional heating of
11440-411: The fault plane that holds it in place, and fluids can exert a lubricating effect. As thermal overpressurization may provide positive feedback between slip and strength fall at the fault plane, a common opinion is that it may enhance the faulting process instability. After the mainshock, the pressure gradient between the fault plane and the neighboring rock causes a fluid flow that increases pore pressure in
11570-418: The fault surface, and cracking of the rock, thus causing an earthquake. This process of gradual build-up of strain and stress punctuated by occasional sudden earthquake failure is referred to as the elastic-rebound theory . It is estimated that only 10 percent or less of an earthquake's total energy is radiated as seismic energy. Most of the earthquake's energy is used to power the earthquake fracture growth or
11700-536: The fault, and rigidity of the rock). The Japan Meteorological Agency seismic intensity scale , the Medvedev–Sponheuer–Karnik scale , and the Mercalli intensity scale are based on the observed effects and are related to the intensity of shaking. The shaking of the earth is a common phenomenon that has been experienced by humans from the earliest of times. Before the development of strong-motion accelerometers,
11830-437: The first president), who had been serving as Mogae's vice-president since resigning his position as Commander of the Botswana Defence Force in 1998 to take up this civilian role. On 1 April 2018, Mokgweetsi Eric Keabetswe Masisi was sworn in as the fifth president of Botswana, succeeding Ian Khama. He represents the Botswana Democratic Party , which has also won a majority in every parliamentary election since independence. All
11960-417: The focus. Once the rupture has been initiated, it begins to propagate away from the focus, spreading out along the fault surface. Lateral propagation will continue until either the rupture reaches a barrier, such as the end of a fault segment, or a region on the fault where there is insufficient stress to allow continued rupture. For larger earthquakes, the depth extent of rupture will be constrained downwards by
12090-406: The force that "pushes" the rock mass during the faulting. In the case of normal faults, the rock mass is pushed down in a vertical direction, thus the pushing force ( greatest principal stress) equals the weight of the rock mass itself. In the case of thrusting, the rock mass "escapes" in the direction of the least principal stress, namely upward, lifting the rock mass, and thus, the overburden equals
12220-425: The forebears of present-day San ("Bushmen") and Khoi peoples. Both groups speak click languages from the small Khoe-Kwadi , Kx’a and Tuu language families whose members hunted, gathered and traded over long distances. When cattle were first introduced into southern Africa about 2,000 years ago, pastoralism became a major feature of the economy since the region had large grasslands free of tsetse flies . It
12350-563: The government denies that there is any link to mining, claiming the relocation is to preserve the wildlife and ecosystem, even though the San people have lived sustainably on the land for millennia. On the reservations, they struggle to find employment, and alcoholism is rampant. On 24 August 2018, the UN Special Rapporteur on Minorities , Fernand de Varennes, issued a statement calling on Botswana "to step up efforts to recognise and protect
12480-543: The human population has increased from 574,000 in 1971 to 1.5 million in 1995, a 161% increase in 24 years. Environmentalists report that the Okavango Delta is drying up due to increased livestock grazing. The Okavango Delta is one of the major semi-forested wetlands in Botswana and one of the largest inland deltas in the world; the ecosystem is crucial to the survival of many animals. The Department of Forestry and Range Resources has already begun to implement
12610-410: The intensity of a seismic event was estimated based on the observed effects. Magnitude and intensity are not directly related and calculated using different methods. The magnitude of an earthquake is a single value that describes the size of the earthquake at its source. Intensity is the measure of shaking at different locations around the earthquake. Intensity values vary from place to place, depending on
12740-420: The land. The country had a 2018 Forest Landscape Integrity Index mean score of 9.13/10, ranking it 8th globally out of 172 countries. The United Nations Development Programme (UNDP) claims that poverty is a major problem behind the overexploitation of resources, including land, in Botswana. The UNDP joined in with a project started in the southern community of Struizendam in Botswana. The project's purpose
12870-554: The largest single foreign contributor to the development of the BDF , and a large segment of its officer corps have received U.S. training. The Botswana government gave the United States permission to explore the possibility of establishing an Africa Command ( AFRICOM ) base in the country. Botswana is the 50th most peaceful country in the world, according to the 2024 Global Peace Index . The Botswana Centre for Human Rights , Ditshwanelo,
13000-639: The legislature has little power to check the president once appointed. The judiciary includes the High Court of Botswana , the Court of Appeal and Magistrates' Courts. Cases are often settled by customary courts with tribal chiefs presiding. Elections in Botswana are held every five years and overseen by the Independent Electoral Commission (IEC). Botswana operates a multi-party system in which many political parties compete in elections. It
13130-471: The lengths along subducting plate margins, and those along normal faults are even shorter. Normal faults occur mainly in areas where the crust is being extended such as a divergent boundary . Earthquakes associated with normal faults are generally less than magnitude 7. Maximum magnitudes along many normal faults are even more limited because many of them are located along spreading centers, as in Iceland, where
13260-402: The main causes of these aftershocks, along with the crust around the ruptured fault plane as it adjusts to the effects of the mainshock. An aftershock is in the same region as the main shock but always of a smaller magnitude, however, they can still be powerful enough to cause even more damage to buildings that were already previously damaged from the mainshock. If an aftershock is larger than
13390-414: The mainshock, the aftershock is redesignated as the mainshock and the original main shock is redesignated as a foreshock . Aftershocks are formed as the crust around the displaced fault plane adjusts to the effects of the mainshock. Earthquake swarms are sequences of earthquakes striking in a specific area within a short period. They are different from earthquakes followed by a series of aftershocks by
13520-507: The nation's formal and sole legislature, while the Ntlo ya Dikgosi serves an advisory body made up of tribal chiefs and other appointed members. Botswana's executive branch is led by the President of Botswana , who serves as both the head of state and head of government . The members of parliament choose the president, and the president then appoints the vice-president and cabinet members. The president has significant power in Botswana, and
13650-403: The naturally regenerating forest 0% was reported to be primary forest (consisting of native tree species with no clearly visible indications of human activity) and around 11% of the forest area was found within protected areas. For the year 2015, 24% of the forest area was reported to be under public ownership and 76% private ownership . The Chobe National Park and Moremi Game Reserve (in
13780-638: The new Bechuanaland Protectorate. During the 1890s, the new territory was divided into eight different reserves, with fairly small amounts of land being left as freehold for white settlers . During the early 1890s, the British government decided to hand over the Bechuanaland Protectorate to the British South Africa Company . This plan, which was well on its way to fruition despite the entreaties of Tswana leaders who toured England in protest,
13910-502: The population. The Tswana ethnic group are descended mainly from Bantu-speaking peoples who migrated into southern Africa , including modern Botswana, in several waves before AD 600. In 1885, the British colonised the area and declared a protectorate named Bechuanaland . As part of the decolonisation of Africa , Bechuanaland became an independent Commonwealth republic under its current name on 30 September 1966. Since then, it has been
14040-541: The previous presidents have also represented the same party. A long-running dispute over the northern border with Namibia 's Caprivi Strip was the subject of a ruling by the International Court of Justice in December 1999. It ruled that Kasikili Island belongs to Botswana. Following the independence in 1966, the president always represented the same political party until the 2024 Botswana general election , which
14170-688: The proceeds to import horses and guns, which in turn enabled them to establish control over what is now Botswana. This process was largely complete by 1880, and the Batswana subjugated thus the Bushmen, Kalanga, Bakgalagadi and other current minorities. Following the Great Trek , Afrikaners from the Cape Colony established themselves on the borders of Botswana in the Transvaal . In 1852, a coalition of Tswana chiefdoms led by Sechele I defeated Afrikaner incursions at
14300-519: The programme is giving the government information to help with policy development. Botswana is a parliamentary republic governed by the Constitution of Botswana . It is the longest uninterrupted democracy in Africa. Its seat of government is in Gaborone . Botswana's governing institutions were established after it became an independent nation in 1966. Botswana's governmental structure is based on both
14430-592: The rights of minorities in relation to public services, land and resource use, and the use of minority languages in education and other critical areas." Botswana is divided into 10 administrative districts , 2 city districts, 4 towns, 11 sub-districts and, in total, 16 administrative divisions. They are: These are administered by 16 local authorities (district councils, city councils or town councils). In 1977, Botswana's administrative divisions were Ngamiland, Chobe, Francistown, Ngwato, Tuli, Ghanzi, Kgalagadi, Ngwaketse, Kweneng, Gaborone and Lobatse. In 2006, Chobe
14560-518: The rock. In the coseismic phase, such an increase can significantly affect slip evolution and speed, in the post-seismic phase it can control the Aftershock sequence because, after the main event, pore pressure increase slowly propagates into the surrounding fracture network. From the point of view of the Mohr-Coulomb strength theory , an increase in fluid pressure reduces the normal stress acting on
14690-437: The rupture of geological faults but also by other events such as volcanic activity, landslides, mine blasts, fracking and nuclear tests . An earthquake's point of initial rupture is called its hypocenter or focus. The epicenter is the point at ground level directly above the hypocenter. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at
14820-522: The same numeric value within the limits of the scale. Although the mass media commonly reports earthquake magnitudes as "Richter magnitude" or "Richter scale", standard practice by most seismological authorities is to express an earthquake's strength on the moment magnitude scale, which is based on the actual energy released by an earthquake, the static seismic moment. Every earthquake produces different types of seismic waves, which travel through rock with different velocities: Propagation velocity of
14950-464: The seismic waves through solid rock ranges from approx. 3 km/s (1.9 mi/s) up to 13 km/s (8.1 mi/s), depending on the density and elasticity of the medium. In the Earth's interior, the shock- or P waves travel much faster than the S waves (approx. relation 1.7:1). The differences in travel time from the epicenter to the observatory are a measure of the distance and can be used to image both sources of earthquakes and structures within
15080-422: The stresses and strains on the crust, including building reservoirs, extracting resources such as coal or oil, and injecting fluids underground for waste disposal or fracking . Most of these earthquakes have small magnitudes. The 5.7 magnitude 2011 Oklahoma earthquake is thought to have been caused by disposing wastewater from oil production into injection wells , and studies point to the state's oil industry as
15210-490: The surrounding fracture networks; such an increase may trigger new faulting processes by reactivating adjacent faults, giving rise to aftershocks. Analogously, artificial pore pressure increase, by fluid injection in Earth's crust, may induce seismicity . Tides may trigger some seismicity . Most earthquakes form part of a sequence, related to each other in terms of location and time. Most earthquake clusters consist of small tremors that cause little to no damage, but there
15340-542: The territories transferred to their jurisdiction, the UK kept delaying; consequently, it never occurred. The election of the Nationalist government in 1948, which instituted apartheid , and South Africa's withdrawal from the Commonwealth in 1961, ended any prospect of the UK or these territories agreeing to incorporation into South Africa. An expansion of British central authority and the evolution of native government resulted in
15470-443: The thickness of the brittle layer is only about six kilometres (3.7 mi). Reverse faults occur in areas where the crust is being shortened such as at a convergent boundary . Reverse faults, particularly those along convergent boundaries, are associated with the most powerful earthquakes (called megathrust earthquakes ) including almost all of those of magnitude 8 or more. Megathrust earthquakes are responsible for about 90% of
15600-461: The total seismic moment released worldwide. Strike-slip faults are steep structures where the two sides of the fault slip horizontally past each other; transform boundaries are a particular type of strike-slip fault. Strike-slip faults, particularly continental transforms , can produce major earthquakes up to about magnitude 8. Strike-slip faults tend to be oriented near vertically, resulting in an approximate width of 10 km (6.2 mi) within
15730-505: The universality of such events beyond Earth. An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves . Earthquakes may also be referred to as quakes , tremors , or temblors . The word tremor is also used for non-earthquake seismic rumbling . In its most general sense, an earthquake is any seismic event—whether natural or caused by humans—that generates seismic waves. Earthquakes are caused mostly by
15860-436: The vast improvement in instrumentation, rather than an increase in the number of earthquakes. The United States Geological Survey (USGS) estimates that, since 1900, there have been an average of 18 major earthquakes (magnitude 7.0–7.9) and one great earthquake (magnitude 8.0 or greater) per year, and that this average has been relatively stable. In recent years, the number of major earthquakes per year has decreased, though this
15990-434: Was a dominant-party state in which the Botswana Democratic Party had ruled with a majority government from independence in 1966 to 2024. The nation's elections are recognized as free and fair , but the ruling party has institutional advantages that other parties do not. Factionalism is common within Botswana's political parties, and several groups have formed new parties by splitting from established ones. Since 2019,
16120-478: Was established in 1993. Until June 2019, homosexual acts were illegal in Botswana. A Botswana High Court decision of 11 June of that year struck down provisions in the Criminal Code that punished "carnal knowledge of any person against the order of nature" and "acts of gross indecency", making Botswana one of 22 African countries that have either decriminalised or legalised homosexual acts. Capital punishment
16250-713: Was eventually foiled by the failure of the Jameson Raid in January 1896. When the Union of South Africa was formed from the main British colonies in the region in 1910, the High Commission Territories—the Bechuanaland Protectorate, Basutoland (now Lesotho ) and Swaziland (now Eswatini )—were not included, but provision was made for their later incorporation. However, the UK began to consult with their inhabitants as to their wishes. Although successive South African governments sought to have
16380-562: Was formed in 1977. The president is commander-in-chief of the armed forces and appoints a defence council. In 2019, Botswana signed the UN treaty on the Prohibition of Nuclear Weapons . Following political changes in South Africa and the region, the BDF's missions have increasingly focused on preventing poaching , preparing for disasters , and supporting foreign peacekeeping . The United States has been
16510-470: Was historic in that the opposition party won. Duma Boko became the first president who did not represent the Botswana Democratic Party (BDP). On 1 November 2024, Duma Boko, leader of opposition Umbrella for Democratic Change (UDC), was sworn in as president of Botswana. At 581,730 km (224,607 sq mi), Botswana is the world's 48th-largest country. It also has a mean altitude of roughly 1,000 metres (3,300 ft) above sea level. Botswana
16640-433: Was removed from being an administrative division, and Ngamiland's name was changed to North West district. Chobe was readded on 31 March 2014. That same day, the administrative divisions Francistown, Gaborone, Jwaneng, Lobatse, Selibe Phikwe, and Sowa Town were also added. Since independence, Botswana has had one of the fastest growth rates in per capita income in the world. Formerly one of the world's poorest countries—with
16770-626: Was the deadliest of the 20th century. The 1960 Chilean earthquake is the largest earthquake that has been measured on a seismograph, reaching 9.5 magnitude on 22 May 1960. Its epicenter was near Cañete, Chile. The energy released was approximately twice that of the next most powerful earthquake, the Good Friday earthquake (27 March 1964), which was centered in Prince William Sound , Alaska. The ten largest recorded earthquakes have all been megathrust earthquakes ; however, of these ten, only
16900-415: Was the second-highest rating in Africa, and the highest ranking in continental Africa (only the offshore island nation of Mauritius bested its ranking). However, according to the 2024 V-Dem Democracy Indices , Botswana has been experiencing an episode of democratic backsliding over the past 10 years, recording its lowest ever score on the indices. The indices classify Botswana as an electoral democracy in
#96903