The Hinoe Castle ( 日野江城 , Hinoe-jō ) was a Sengoku period Japanese castle cemetery located in the Kita-Arima neighbourhood of city of Minamishimabara , Nagasaki Prefecture Japan . Its ruins were designated a National Historic Site of Japan in 1972.
95-630: Hinoe Castle is located on a hill near the mouth of the Arima River, almost in the urban center of Minamishimabara. The site is at the tip of long ridge continued southward from Mount Unzen , at the south coast of the Shimabara Peninsula . The Arima River flows to the south, and the Ote River flows to the east. The existing castle is a mountain castle from the Sengoku period, with many enclosures arranged in
190-492: A pyroclastic flow that killed 43 people, including three volcanologists . Its highest peaks are Fugen-dake ( 普賢岳 ) at 1,359 metres (4,459 ft) and Heisei-shinzan ( 平成新山 ) at 1,486 metres (4,875 ft). The latter emerged during the eruptions of the early, eponymous Heisei era (1989–2019). Mount Unzen (or Unzen-dake ) rises in the central part of the Shimabara Peninsula, Nagasaki Prefecture. It
285-562: A distance of 2.5 km (1.6 mi) east of the lava dome on May 26, and 3 km (1.9 mi) on May 29. On May 26 when the tip of a pyroclastic flow approached 500 m (1,600 ft) from the nearest private houses, Shimabara City issued an evacuation recommendation for Kita-Kamikoba town, Minami-Kamikoba town, Shirataki town, Tenjin Motomachi, and Fudan Motomachi – all located in the Mizunashi River basin. The evacuation recommendation
380-576: A filming location of the press. From May 15, when the debris flow evacuation advisory was issued, the fire brigade in charge of the Kamikoba district stayed either at the Minami-Kamikoba town fire brigade, or the Kita-Kamikoba town agricultural training center (which was initially an evacuation residence for locals). On May 29, due to the frequent occurrences of pyroclastic flows, they were evacuated from
475-410: A frontal fortification protecting the castle from the castle town , and numerous terraces were also built surrounding these areas. The main gate is presumed to be on the east side, and the remains of a staircase stretching over 100 meters that reaches all the way to the bottom of the main enclosure. A castle was built on this site by Fujiwara Tsunezumi, who ruled parts of the Shimabara Peninsula during
570-426: A peach, eventually splitting and collapsing into four pieces under its own weight. After that, the dome continued to grow, continuously supplied with fresh lava from the crater underneath, creating new lobes that hung down from the summit. The 1st to 13th lobes were named in the order they were formed. Collapsing of the lava dome began to occur when the lobes, pushed out by the newly supplied magma, started to give way on
665-527: A point in Fukae Town outside the evacuation zone on May 28, and switched to 24-hour shooting from there. At the "fixed point", the coverage in the vicinity was limited to patrols. Similarly, the Japan Broadcasting Corporation (NHK) stopped shooting from within the evacuated area from the end of May and arranged for an unmanned camera in the Kamikoba area. But until the unmanned camera was ready,
760-527: A practicing landscape architect, architect, archaeologist, anthropologist, town planner, engineer, administrator of heritage, historian, art historian, palaeontologist or archivist . ICOMOS is a partner and founding member of the Blue Shield , which works to protect the world's cultural heritage threatened by war and natural disasters. ICOMOS is composed of its national committees (NCs), to which individuals and institutions apply for membership. In addition to
855-504: A result of those two factors, most residents were withdrawn from the evacuation advisory area, and fortunately resulted in fewer victims. The eruption activity continued until March 1995, with a temporary pause during its course. Between 1991 and 1994, the volcano generated at least 10,000 small pyroclastic flows, destroying about 2,000 houses. From 1993 onward, the rate of lava effusion gradually decreased, and eruptions came to an end in 1995. The 1990–1995 eruptions of Unzen were
950-482: A seismic intensity of 5 occurred in August near the south side of Hayama. As a result of this earthquake, uplift of the Shimabara Peninsula was observed, and magma supply from Tachibana Bay began. In November 1989, an earthquake swarm began about 20 km (12 mi) underneath and 10 km (6.2 mi) west of Fugen-dake. Over the following year, earthquakes continued, and their hypocentres gradually migrated towards
1045-404: A stepped pattern around the main citadel. The main body of Hinoe Castle extended over an area 400 by 200 meters, separated from connecting ridge by valley. The core area of the castle was the eastern half, and consisted of the central enclosure at highest point on the hill, the secondary enclosure to southeast and the third enclosure to the west. Another peak at western half of the hill was used as
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#17328520964831140-531: A subsidiary castle to Hinoe Castle and during his rule, the Arima clan's territory reached its largest, growing to 210,000 koku and controlling most of Hizen Province . The Arima earned enormous profit from marine transportation, and in 1550 the Portuguese began to trade at Kuchinotsu port next to Hinoe Castle. However, when the Ōuchi clan , which had been their backer, was destroyed, the Arima came under pressure from
1235-467: A while, before succumbing later to their injuries (burns to their skin and lungs, or inhaled ash in their windpipe and lungs). The final victim reportedly died on August 8. The collapse of the lava dome itself left a notable scar on the eastern side of the summit, and the pyroclastic flow and surge resulted in much damage in the Kamikoba district. Kita-Kamikoba was almost completely destroyed. Around 170 houses were devastated, many of them set alight by
1330-525: A year, is a thematic journal ; The regular publications of the French Section of ICOMOS are: Le Bulletin d’information d’Icomos France ; Les Cahiers de la Section Française de l’ICOMOS ; Les Dossiers techniques ; Les Mémentos techniques ; les Bulletins (dossiers des colloques); Les Enquêtes de la section française . In the tradition of the Athens and Venice Charters, ICOMOS has, in
1425-473: Is an active volcanic group of several overlapping stratovolcanoes , near the city of Shimabara, Nagasaki on the island of Kyushu , Japan's southernmost main island. In 1792, the collapse of one of its several lava domes triggered a megatsunami that killed 14,524 people in Japan's worst volcanic-related disaster . The volcano was most recently active from 1990 to 1995, and a large eruption in 1991 generated
1520-459: Is located on the outer ring of the Chijiwa Caldera centering on Tachibana Bay in the west of the peninsula. It consists of a total of more than 20 mountains, however, the complexity in the shape of Unzen-dake was expressed by various numbers (such as Mitake Goho/Mimine Godake as "24th peak", or Yatsuha as "36th peak"). As a result, the usage of only eight mountains (sometimes three mountains)
1615-603: Is the executive body of ICOMOS. The advisory committee is composed of the chairpersons of the national committees, the chairpersons of the international scientific committees and the president of ICOMOS as an ex officio member. The advisory committee was given the task to advise and make recommendations to the General Assembly and the Executive Committee on matters which concern policy and programme priorities. National committees are subsidiary organizations created in
1710-509: The Ryūzōji clan . The 13th head of the clan, Arima Harunobu , converted to Christianity and expanded Hinoe Castle to include a seminary, destroying Buddhist temples and Shinto shrines to use as building materials. After the 1600 Battle of Sekigahara , he was reduced to 40,000 koku , but survived as daimyō of Shimabara Domain under the Tokugawa shogunate . Hinoe Castle became the headquarters of
1805-510: The "fixed point" and find another area. According to a photographer who continued aerial photography of the lava dome from the helicopter, "The bottom fans out from the Sabo dam of the Mizunashi River, and if a large pyroclastic flow occurs, there is a strong possibility of it striking the 'fixed point'." The Asahi Shimbun abandoned their position and retreated past the Tsutsuno bus stop, to instead set up
1900-806: The 17th ICOMOS General Assembly held in Paris in November 2011, the list of charters is as follows: In addition to the above there is a list of seventeen other doctrinal texts, resolutions and declarations, including the Nara Document on Authenticity. In November 1994, at the Nara Conference on Authenticity, ICOMOS published the Nara Document on Authenticity , which addresses the need for a broader understanding of cultural diversity and cultural heritage in conservation efforts involving cultural heritage sites. Many of
1995-444: The 19th, 20th, and 21st. Shimabara City made an evacuation recommendation to the towns in the Mizunashi River basin each time, resulting in smooth evacuation of residents and no human fatalities. However, on May 20, when the lava dome appeared on Fugen-dake, it continued to grow day by day, and on May 24 part of the dome collapsed and the first pyroclastic flow occurred. After that, small pyroclastic flows occurred frequently, reaching
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#17328520964832090-554: The Akamatsu-dani River, but changed direction due to a gust of wind from the south, allowing the residents, firefighters, and the shooting staff (who left their camera behind to capture world-famous footage of the eruption) to immediately escape the eruption. At the "fixed point", members of the media initially left their chartered taxis and company cars on the road with their engine running, facing south so that they could escape immediately in case of an unforeseen event. However,
2185-461: The Anyoji Temple. Four of the victims' bodies were never recovered, and were reported as missing at the time, but presumed dead. Many of the recovered bodies were carbonized due to the extreme heat of the surge, and were identified by either dental records, or personal belongings they carried with them (e.g. wristwatches or cameras). Seventeen victims on the outer edges of the affected zone lived for
2280-473: The Chijiwa Caldera. In other words, it is supplied from a magma chamber beneath Tachibana Bay off Obama Onsen. The main peak is Fugen-dake , but the volcanic activity from 1990 (Heisei 2) to 1995 (Heisei 7) made Heisei-shinzan , which was higher in elevation. Heisei-shinzan is also the highest peak in Nagasaki Prefecture. Unzen originally read "onsen" in the notation of a hot spring , but it
2375-436: The General Assembly into the Executive Committee and five further members are co-opted into the executive board in order to represent regions of the world or areas of expertise that were not part of the executive committee following the elections. Ex officio members of the executive committee are the president of the advisory committee and the previous presidents of ICOMOS, who attend in advisory capacity. The executive committee
2470-544: The International Charter on the Conservation and Restoration of Monuments and Sites, better known as Venice Charter ; the second, put forward by UNESCO , created ICOMOS to carry out this charter. ICOMOS currently has over 10,100 individual members in 153 countries, 110 national committees, and 28 international scientific committees. With rare exceptions, each member must be qualified in the field of conservation and
2565-592: The June 3 eruption, then continued east through the Mizunashi river valley. As the pyroclastic flow reached Onokoba the pyroclastic surge detached from the main flow body as it continued moving 600 m (2,000 ft) to the SE before losing its energy and stopping. The surge was powerful enough to move a car 120 m (390 ft), flatten and uproot large trees and even move large debris in Kita-Kamikoba and Onokoba. The surge destroyed
2660-510: The Kamikoba area, in particular, there were many farmers who made a living by cultivating tobacco leaf, but since they had been forced to evacuate for a long time (since the May 15 debris flows), their work grew stagnant and many of them were concerned. For this reason, on June 4, in collaboration with tobacco farmers in Annaka Town (which had not been evacuated), the residents of the Kamikoba area entered
2755-569: The Ministry of Construction (at that time officials of the Public Works Research Institute) released a picture taken when entering the path of previous pyroclastic flows below the lava dome, and another group on the afternoon of June 1 or 2. After entering the tip of the deposit path, they surveyed the site for about an hour, photographed the pattern and released it. In addition, many visitors had begun to gather around Unzendake to see
2850-540: The Mizunashi River Valley and reaching 3.2 km (2.0 mi) to the east from the lava dome. Although the main body of the flow continued to follow the river, the resulting pyroclastic surge spread out in a fan shape once it had exited the valley mouth and continued further, hitting Kita-Kamikoba town (4 km (2.5 mi) away from the lava dome) and finally stopping near the Tsutsuno bus stop (5 km (3.1 mi) away). The pyroclastic flow also flowed down
2945-523: The Mizunashi Valley, raising the level of the river-bed and making it more likely for the flow to "skip" ridges that would have once stopped it. According to the 2011 documentary Face au Volcan Tueur (French for Facing the Killer Volcano ), the unexpected surge could have been caused by phreatic explosions as the main body of the pyroclastic flow proceeded down two waterfalls at the headwaters of
Hinoe Castle - Misplaced Pages Continue
3040-479: The NE flank of the lava dome started at 16:44, with major flows following at 17:59 and 18:45 before the largest pyroclastic flow at 18:54. The first flows descended towards the NE and stopped just short of Kita-Kamikoba. The main flow initially descended on the NE flank and was then deflected by Taruki height, directing it to the SE, after which it passed through the already ravaged Kita-Kamikoba, where it remobilized debris from
3135-567: The Onokaba elementary school and burned down 150 homes. The eruptive activity caused great damage to the Shimabara Peninsula, especially Shimabara City and Fukae Town. The main factor that led to damage were debris flows and lahars, initiated by heavy rain which destabilized pyroclastic flow and ash debris previously deposited on the slopes. The Mizunashi basin, as well as the Senbongi district and parts of Shimabara were severely damaged. In addition, there
3230-707: The Preservation and Restoration of Cultural Property (ICCROM). As the professional and scientific adviser to the committee on all aspects of the cultural heritage, ICOMOS is responsible for the evaluation of all nominations of cultural properties made to the World Heritage List with the criteria laid down by the World Heritage Committee . In addition to the basic criterion of “outstanding universal value,” ICOMOS evaluates nominations for aspects related to authenticity, management, and conservation as specified in
3325-646: The Shimabara Domain. However, in 1612, he was ordered to commit seppuku for his involvement in the Okamoto Daihachi incident . His eldest son, Arima Naozumi , became his successor, but in 1614, he was transferred to Nobeoka Domain in Hyūga Province . The castle was controlled directly by the shogunate until the arrival of Matsukura Shigemasa in 1616. He found the castle inconvenient, so he built Shimabara Castle (cannibalising some buildings and parts of
3420-613: The World Heritage Committee at its annual meetings. ICOMOS is also involved, through its International Secretariat and its national and scientific committees, in the preparation of reports on the state of conservation of properties inscribed on the World Heritage List. It advises the UNESCO World Heritage Centre on requests for technical assistance received from states that are party to (i.e. have ratified)
3515-480: The World Heritage Convention. The evaluation of nominations involves consultation between the wide-ranging expertise represented by the organization’s membership and its national and scientific committees. Members are also sent on expert missions to carry out on-site evaluations of nominated properties. This extensive consultation results in the preparation of detailed recommendations that are submitted to
3610-433: The World Heritage Convention. ICOMOS maintains a full archive of nominations and reports at the documentation centre at its Paris headquarters. The Gazzola Prize was established in 1979 in memory of Piero Gazzola, one of the greatest defenders of the conservation and restoration of historic monuments and sites, and a founder of ICOMOS. The prize is awarded every three years at the General Assembly of ICOMOS to an individual or
3705-405: The advised evacuation zone. A professional video camera used by an NTV cameraman who died in the pyroclastic flow was discovered in June 2005. The camera melted due to the high temperature generated by the pyroclastic flow and was severely damaged, but the tape it contained was playable, despite having been buried under volcanic deposits for almost 15 years. The video received from the camera shows
3800-675: The castle was advanced for its time and had close ties with the Toyotomi government . The castle was nominated as one of the components in the UNESCO World Heritage Site Hidden Christian Sites in the Nagasaki Region ; however, it was removed from the candidate listing when the International Council on Monuments and Sites , an advisory body to UNESCO, pointed out that the castle had little connection to
3895-496: The city council election poster bulletin board, and four residents who were working in agriculture were killed. The disaster resulted in 43 dead or missing, and nine injured. The photographer of the Yomiuri Shimbun newspaper died holding his Nikon F4. The camera recorded seven frames of the pyroclastic flow, although it was discolored by heat. All of the areas surrounding the "fixed point" where many casualties occurred, were within
Hinoe Castle - Misplaced Pages Continue
3990-516: The companies started competing for color photographs. The competition became even more intense as the Mainichi Shimbun succeeded in shooting nightly pyroclastic flows on May 28. The fact that pyroclastic flows were being recorded in clear images for the first time attracted a great deal of attention from all over the world, and many volcanologists and government officials entered the evacuation advisory area for interviews and photography. On May 28,
4085-503: The cooling of the magma over the nine to ten years since the end of the eruption. International Council on Monuments and Sites The International Council on Monuments and Sites ( ICOMOS ; French: Conseil international des monuments et des sites ) is a professional association that works for the conservation and protection of cultural heritage places around the world. Now headquartered in Charenton-le-Pont , France, ICOMOS
4180-540: The countries which are members of UNESCO. They bring together individual and institutional members and offer them a framework for discussion and an exchange of information. Each national committee adopts its own rules of procedure and elaborates its own program according to the goals and aims of ICOMOS. In 2021, ICOMOS has 107 national committees. ICOMOS website includes a list regularly updated. International scientific committees (ISCs) are entities focus on specialised areas of heritage conservation and are made up of members of
4275-417: The crater. A pyroclastic flow triggered by the collapse of a lava dome reached 4.5 km (2.8 mi) from the crater and claimed the lives of 43 scientists and journalists, including volcanologists Katia and Maurice Krafft and Harry Glicken . The first debris flow in the Mizunashi River (located at the foothills of Unzendake) occurred on May 15, and others continued to occur in succession on
4370-487: The crater. On March 25, fumes rose and lava flowed down the northeastern part of Fugen-dake at a total length of 2.7 km (1.7 mi). Eventually, the east flank of the Mayu-yama dome collapsed unexpectedly following a post-eruption earthquake, creating a landslide into Ariake Bay . This caused a tsunami that killed an estimated 15,000 people. As of 2011 it is the worst volcanic related eruption in Japan. After 1792,
4465-630: The drafting of a charter, the implementation of concrete activities (working sessions, workshops). There are currently 6 working groups, the list of which can be found on the ICOMOS website, in which experts reflect on a wide variety of subjects related to heritage conservation: indigenous heritage, sustainable development, Syria/Iraq, climate change and emerging professionals. Located at ICOMOS headquarters in Paris, it collects, analyses and disseminates information on all methods of heritage conservation, notably through its bibliographic database (14,000 references on
4560-574: The early Kamakura period . Tsunezumi claimed descendant from Fujiwara no Sumitomo (although he also claimed descent from the Taira clan or the Northern Fujiwara clan as circumstances warranted), and at the time of the castle's construction, he took the surname Arima . By the Sengoku period , the Arima clan had conquered the various powers within Shimabara Peninsula . Arima Takazumi built Hara Castle as
4655-421: The emplacement of large areas of pyroclastic flow and lahar deposits; these form the major part of the volcanic fan surrounding the volcano. Beginning 300,000 to 150,000 years ago, thick phreatomagmatic deposits were laid down, suggesting the subsidence of the volcano into its graben was rapid during this period. Activity from 150,000 years ago to the present has occurred at a number of sites around
4750-541: The evacuation zone to perform flower filling work later than usual. Volcanologists did not talk about the danger of pyroclastic flows initially, because they feared residents would panic, especially those still working in the evacuated area. Residents were warned not to enter the evacuation advisory area by Shimabara City and the media, but since May, no concrete image was given regarding the danger of pyroclastic flows compared to that of debris flows (which had caused significant damage previously), and most residents did not take
4845-473: The extent at which it burned." Twenty-five days after the event, the Japan Meteorological Agency revealed that while the first dome collapse was reported, much of the mass media and local residents were in a state of confusion about the danger of pyroclastic flows, and were not particularly concerned about them overall. The media originally reported that the pyroclastic flows seen on Fugen-dake at
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#17328520964834940-422: The field of view was poor due to dispersing ash from the previous pyroclastic flow, as well as due to the presence of rain, and it was almost impossible to evacuate even from the windward side, as the pyroclastic surge that flowed from the Akamatsu-dani River would have cut them off. A fire brigade member of the agricultural training station, several hundred meters away from the "fixed point", assumed incorrectly that
5035-644: The firefighting station in Minami-Kamikoba town to the Shiratani Public Hall in the lower Mizunashi River, but on June 2, they returned to the Agricultural Training Center in Kita-Kamikoba town. This was because of the following reasons: On Sunday, June 2, all 20 members of the Kamikoba area fire brigade slept at the agricultural training institute. They remained at the training center and were on alert. After 3:30 pm on June 3, small and medium-sized pyroclastic flows occurred frequently, and
5130-415: The first debris flow caused by accumulated volcanic ash at the summit occurred, and a number of cracks were formed on the west side of the crater, extending in an east–west direction. After this inflation of the summit area, fresh lava was confirmed to be emerging on May 20, 1991. The lava was so viscous that it did not flow out, but instead became a dome which formed in the crater. The lava dome grew like
5225-423: The first eruptive activities in the world where pyroclastic flows were recorded clearly and continuously on video (in the past, many pyroclastic flows, such as those on Mt. Pelee, were recorded either as photographs or on small-scale videos). Dome collapses and pyroclastic flows continued. The first large-scale dome collapses and pyroclastic flows occurred after June 3 on September 15, 1991. Progressive failure of
5320-421: The first large-scale pyroclastic flow occurred at 3:57. Although this pyroclastic flow (and its resulting pyroclastic surge) did not reach the "fixed point", visibility in the vicinity deteriorated significantly as volcanic ash from the dispersing cloud covered the surroundings, in addition to the rainfall that had continued from the morning. At 4:08 pm, the second large pyroclastic flow occurred, descending
5415-490: The generating pyroclastic flow, and asks "What's that sound?", whilst turning the camera in the direction of Mt. Fugen). This video was broadcast on October 16, 2005, and is now exhibited at the Unzendake Disaster Memorial Hall (Shimabara City) alongside the melted camera. It is unclear as to what caused the unprecedented size of the second, large-scale pyroclastic flow on June 3. It has been suggested that
5510-457: The heavy ash-laden column that towered over the main flow, collapsed during its descent, causing the surge. It has also been pointed out that when the dome collapsed, 0.5 million cubic meters of hardened lava broke off, leaving a significant collapse scar afterwards, suggesting that the size of the dome collapse (rather than the column collapse) initiated the surge. Other explanations account the fact that previous lahars and pyroclastic flows filled
5605-428: The intense heat of the ash. Pictures have shown that the pyroclastic flow left significant deposits near the mouth of the Mizunashi River Valley, enough to bury houses and the river itself. In contrast, the surge that detached from the flow left deposits of ash between 3 and 30 centimetres (1.2 and 11.8 in) thick, however trees were flattened and many buildings continued burning until the next morning. The force of
5700-650: The national committees of ICOMOS have adopted their own charters which set standards for heritage conservation practice at national level. In 1972, ICOMOS was named by the UNESCO World Heritage Convention as one of the three formal advisory bodies to the World Heritage Committee, along with the International Union for Conservation of Nature (IUCN) and the International Centre for the Study of
5795-422: The national committees, ICOMOS has a series of international scientific committees (ISCs), in which experts in a certain field of activity within the context of heritage conservation exchange views and debate. The organization is headed by a president, five vice-presidents, a secretary-general and a treasurer all directly elected by the general assembly of the organization. 12 additional members are also elected by
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#17328520964835890-662: The organisation drawn from those specialist areas. The scientific programmes of the organisation are coordinated by the "scientific council" made up of the presidents of the ISCs. Nowadays, ICOMOS has 28 ISCs. A list regularly updated is available on ICOMOS website. ICOMOS conducts a process of reflection on doctrine and good practice on current issues involving the conservation of cultural heritage. To this end, it sets up working groups made up of ICOMOS members who are heritage professionals: architects, archaeologists, professors and researchers, curators and scientists. The aim of these groups can be
5985-475: The original target depth, without reaching the conduit, but in July 2004 at a depth of 1,995 metres (6,545 ft), the conduit was finally reached. The vertical depth below the summit was 1,500 metres (4,900 ft). The temperature at the conduit was about 155 °C (311 °F), much lower than pre-drill estimations of 500 °C (932 °F) and over. This was attributed to hydrothermal circulation accelerating
6080-474: The period when Christianity was prohibited in Japan. The remains of the staircase were subsequent backfilled for preservation, and it cannot be seen at present. Remnants of stone walls and dry moats can still be seen on site. The castle ruins are located about 24 kilometers southwest of Shimabarakō Station on the Shimabara Railway Line . Mount Unzen Mount Unzen ( 雲仙岳 , Unzen-dake )
6175-405: The photographer who had been lowered backwards was advanced to the Kamikoba area once again on June 1. The evacuation area then became smaller, since the commercial broadcasters had shot footage of bright red lava on May 30 and 31; the person in charge of the news program (who ordered the initial retreat of the front-line shooting staff) ordered more images shot like it. Kamikoba soon emerged again as
6270-495: The plumes. In particular, since June 2 was Sunday, many visitors from other prefectures gathered around the Mizunashi River and observed the pyroclastic flows with binoculars and photographed them with video cameras. Traffic became heavy as a result. However, on May 26, reporters from the Asahi Shimbun were warned that it was likely for them to be engulfed by the clouds, and in an evacuation recommendation, they were asked to leave
6365-428: The reporters observing the first pyroclastic flow, and then continuing to report after having moved their position to the "fixed point". It also displays the police cars that announced evacuation, all unaware of the approach of the second large pyroclastic flow. The footage and sound were recorded and recovered, although heavily damaged and warped (the video ends when the cameraman notices a sound apparently associated with
6460-539: The residents in the Kamikoba area recognized pyroclastic flows as "very dangerous". As was seen in the survey results, the volcanologist's warnings were not even understood by residents living in the most dangerous areas. On June 3, a debris flow warning was passed out due to rain that began in the morning, and a party was held in Shiratani to celebrate the winner of the Shimabara City Council election on June 2. As
6555-429: The residents' request that patrolling police officers allow them into the area to return to their homes (in preparation for prolonged evacuation). From the same day onward, a "district name sticker" was issued, and private cars with such a sticker were given permission to enter the evacuated area. For this reason, there were many residents doing laundry and field work at homes in the zone that had been declared dangerous. In
6650-469: The river, fragmenting the ash-particles of the avalanche and expanding the energy of the overlaying gas and ash cloud. Pyroclastic flows continued over the next few days following the June 3 eruption, however, they were reportedly smaller and less frequent. Even so, rescue efforts and movements to recover the bodies of the victims, were disrupted and stalled due to the ever-present danger. Authorities eventually managed to recover 27 bodies and brought them to
6745-624: The roaring of the pyroclastic flow was caused by a debris flow instead, and was engulfed by the pyroclastic surge when he left the training station to check the Mizunashi River. Many members escaped from the evacuation advisory area on their own, but suffered severe burns and airway damage. As a result, 16 members of the media (including part-time students), three volcanologists (the Kraffts and Harry Glicken), 12 firefighters who were on guard, four taxi drivers, two police officers who came by police car to conduct evacuation guidance, two workers who were removing
6840-490: The same conduits despite the solidification of magma in them at the end of each eruption, and how it can lose enough gas on its ascent to erupt effusively rather than explosively. Drilling began with test bores to assess the viability of a deep borehole . Two holes were drilled, 750 metres (2,460 ft) and 1,500 metres (4,900 ft) deep, and cores taken from these holes were used to better determine Unzen's eruptive history. One further 350-metre (1,150 ft) deep borehole
6935-402: The slope, causing a phenomenon known as pyroclastic flows (in which debris and volcanic gasses flow down the mountainside at speeds of 100 km/h). The threat of further disastrous events prompted authorities to evacuate 12,000 residents from their homes. On June 3, 1991, the volcano erupted violently, possibly as a result of depressurisation of the magma column after a landslide in
7030-465: The south of today's Mount Unzen and migrated north over time. The volcano rapidly grew during its first 200,000 years, forming a very large cone. Later eruptions over the following 150,000 years filled in much of the graben. Initially, activity was dominated by blocky andesitic lava and ash flows, changing to dacitic pumice flows and airfall deposits from 500,000 to 400,000 years ago. The period from 400,000 to 300,000 years ago saw
7125-582: The spring of the following year, there was a flood from the Kujuku Island crater, located on the southeastern flank of Fugen-dake at an altitude of 600 metres (2,000 ft). More than 30 were killed. Unzen's deadliest eruption occurred in 1792 , beginning with an earthquake in November of the previous year. On February 10, 1792, eruptions from Fugen-dake's Jigokuato crater began. Lava flows began on March 1 and continued for nearly two months. On March 22, volcanic plumes were produced, and lava also flowed out of
7220-676: The stone walls of Hinoe Castle) to which he relocated his seat. Hinoe Castle was allowed to fall into ruins, and after the Shimabara rebellion , what remained was demolished to prevent any further use. Much of the area of the castle disappeared under orchards and farms. Archaeological excavations were carried out from 1995 to 2000. During these excavations, a straight staircase similar to one found in Azuchi Castle , stonework incorporating foreign technology, Chinese ceramics, and roof tiles with gold leaf were unearthed. These findings suggest that
7315-457: The summit. Finally on November 17, 1990 (Heisei 2), the first phreatic, or steam-blast, eruptions began ejecting from two places near a shrine at the summit. These eruptions only allowed vaporized hot water and ash to blow up from the two craters. In December of the same year, the volcano's state lulled and it seemed that it would end, but it erupted again on February 12, 1991, and on April 3 and 4. The eruption intensified on May 9. On May 15,
7410-519: The surge was enough to push a car 80 metres (260 ft) down-road. Many of the casualties of the June 3 eruption could have been avoided if the danger of pyroclastic flows had been made more apparent beforehand. While the first pyroclastic flow on May 24 was shocking, many did not understand just how lethal such events could become. A reporter stated at the time: "I knew they were quite hot, but didn't know they could be accompanied by (pyroclastic surges). I thought we could escape by car, but I didn't know
7505-408: The time were "geologically small", which many regarded as "a scale that would cause no human fatalities". On May 26, a construction worker operating a Sabo dam in the upstream area of the Mizunashi River was caught in a pyroclastic flow; he survived but was sent to hospital with burns on his arms. Many thought that such burns could be prevented by wearing a long-sleeved shirt. The danger of the phenomena
7600-478: The village of Kita-Kamikoba, and was favored by the media because they were able to view Fugen-dake directly in front of them. The nickname "fixed point" was established. After the first pyroclastic flow on May 24, more than a dozen media members were lined up at the "fixed point". In 1991, the media had started to use color photographs on the paper, and with the Fugen-dake disaster becoming an ongoing topic of coverage,
7695-586: The volcanic complex, building four main domes at different times: the No-dake (70–150,000 years old), Myōken-dake (25–40,000 years old), Fugen-dake (younger than 25,000 years old) and Mayu-yama (4,000 years old) volcanic peaks. Fugen-dake has been the site of most eruptions during the past 20,000 years and lies about 6 kilometres (3.7 mi) from the center of Shimabara. In December 1663, Fugen-dake erupted, producing lava flows that covered forest for over an extension of 1 km (0.62 mi). In
7790-440: The volcano remained dormant until it erupted again in November 1990. It started with a slowly building active phase in 1968, with first earthquake swarms continuing until 1975. Large amounts of volcanic gas were ejected by Fugen, which affected about thirty cedar trees. In 1975, bird and animal carcasses were found in the surrounding area, and high concentrations of carbon dioxide were detected emitting from rock fractures. This area
7885-409: The warnings seriously. Many misunderstood them to be mere clouds of dust. According to the "Investigation of Disaster Information Transmission and Residents' Responses during the 1991 Unzendake Eruption" conducted in 1992, 75% of local residents recognized debris flows as more dangerous than pyroclastic flows before June 2. Only 15% perceived pyroclastic flows to be more dangerous. Furthermore, only 5% of
7980-453: The whole peninsula between 2.5 and 0.5 million years ago. The origins of the Unzen complex are traced to the formation of a graben through crustal faulting. This caused parts of the peninsula to subside by up to 1,000 metres (3,300 ft) below sea level and may have caused eruptive activity to localize at one site inside the graben. Eruptions of dacitic lava began from a site slightly to
8075-553: The world's architectural heritage) and a large photo library containing more than 8,000 photographs. It is open for consultation to researchers, whether or not they are members of ICOMOS. The regular publications of ICOMOS International are: ICOMOS News, a newsletter for members, which provides an update on the activities of the association (quarterly in French, English and Spanish); the ICOMOS Scientific Journal, published twice
8170-434: The years since its formation, developed and adopted a number of other charters and doctrinal texts which provide guidance to heritage conservation professionals in their work. Most such documents are created by the international committees of the organisation and thereafter adopted by the triennial General Assembly. The texts each address a specific area of professional practice in the heritage conservation professions. Following
8265-533: Was also reported to have erupted volcanic gasses during the 1792 eruption. Earthquakes occurred sporadically from 1975, but there were 89 sensitive earthquakes, with strong shaking equivalent to a maximum seismic intensity of 5 from June to September 1979. At Shimabara Onsen, there was a place where the dissolved carbon dioxide concentration rose sharply from 1975 and increased by 30%. From April 1984, swarms occurred in Tachibana Bay A magnitude 5.7 earthquake with
8360-413: Was carried out without trouble. In order to capture the pyroclastic flow activity on film, the mass media chose a select spot within the evacuation advisory area. This spot was 4 km (2.5 mi) away from the lava dome, 700 m (2,300 ft) away from the Mizunashi River (where debris flows were frequent), and 40 m (130 ft) high. This shooting spot was located on the prefectural road in
8455-488: Was changed to the current notation when it was designated as a national park. An army radar base was built near the summit of Fugen-dake during the Pacific War, where about 100 people were stationed. Mount Unzen is part of the Shimabara Peninsula , which has seen extensive volcanism over millions of years. The oldest volcanic deposits in the region date from over 6 million years ago, and extensive eruptions occurred over
8550-629: Was coined in a narrow sense, but historically it is a name that refers to the entire mountain range towering over the sea. It is often confused with the name of the oldest peak, Fugen-dake . Surrounding the highest peak of Heisei-shinzan (1,483 m (4,865 ft)), are Fugen-dake (1,359 m (4,459 ft)), Kunimi-dake (1,347 m (4,419 ft)), Myoken-dake (1,333 m (4,373 ft)), Nodake (1,142 m (3,747 ft)), Kusenbedake (1,062 m (3,484 ft)), and Yadake (943 m (3,094 ft)). Fugen-dake and Heisei-shinzan derive magma from
8645-685: Was concern about the collapse of Mt. Mayuyama, which previously caused the 1792 disaster. In this eruptive activity, however, Mt. Mayuyama protected the center of Shimabara from the pyroclastic flows. In areas other than Shimabara and Fukae, there was ash fall depending on the wind direction, and at Kumamoto Airport, it had an impact on the arrival and departure of aircraft. Since the eruptions, heavy rains have frequently remobilised pyroclastic material, generating lahars . Dikes have been constructed in several river valleys to channel lahar flows away from vulnerable areas, and warning systems and evacuation plans have been developed and deployed. Mount Unzen
8740-536: Was designated a Decade Volcano by the United Nations , in 1991 as part of their International Decade for Natural Disaster Reduction , due to its history of violent activity and location in a densely populated area. In 1999, an ambitious project began at Mount Unzen to drill deep inside the volcano and sample magma in the 1990–1995 eruption conduit . The project hoped to shed light on some fundamental questions in volcanology, such as why magma repeatedly travels in
8835-441: Was drilled to test the methods to be used in the final drilling project. The main drill began in 2003, starting from the northern flank of the volcano with a 440 mm (17 in) hole at an angle of 25 degrees from vertical. At greater depths, the direction of boring was tilted towards the conduit, reaching an angle of 75 degrees from vertical at a depth of 800 metres (2,600 ft). Drilling reached 1,800 metres (5,900 ft),
8930-851: Was founded in 1965 in Warsaw as a result of the Venice Charter of 1964 and offers advice to UNESCO on World Heritage Sites . The idea behind ICOMOS dates to the Athens Conference on the restoration of historic buildings in 1931, organized by the International Museums Office . The Athens Charter of 1931 introduced the concept of international heritage. In 1964, the Second Congress of Architects and Specialists of Historic Buildings, meeting in Venice , adopted 13 resolutions. The first created
9025-410: Was not made clear. Furthermore, the number of pyroclastic flows from May 25 to June 2 had increased to 165, and all had stopped near the Sabo dam in the upper reaches of the valley. As a result, much of the media grew accustomed to the eruptions and no longer felt like they were in any danger. Shimabara City issued an evacuation advisory for the villages near the base of Unzen on May 26, but responded to
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