|
1982 Nagasaki Flood
The 1982 Nagasaki flood () was caused by a cloudburst that occurred mainly in Nagasaki, Japan in July 1982. Overview On July 23, 1982, due to the influence of the Meiyu front, a cloudburst occurred around Nagasaki. Due to this cloudburst, mudflows and rivers overflowed their banks in quick succession. Throughout the Nagasaki area, following rainfall observed at 100 to 187 mm a per hour, as well as landslides throughout the area. According to the Japanese government report, 299 people died in Nagasaki Prefecture, along with 23 in Kumamoto Prefecture. The Japan Meteorological Agency named the heavy rain from July 23 to July 25 the "July 1982 heavy rain" (昭和57年7月豪雨). On the other hand, Nagasaki Prefecture named this disaster the "7.23 Nagasaki Flood" (7.23長崎大水害). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloudburst
A cloudburst is an extreme amount of precipitation in a short period of time, sometimes accompanied by hail and thunder, which is capable of creating flood conditions. Cloudbursts can quickly dump large amounts of water, e.g. 25 mm of precipitation corresponds to 25,000 metric tons per square kilometre (1 inch corresponds to 72,300 short tons over one square mile). However, cloudbursts are infrequent as they occur only via orographic lift or occasionally when a warm air parcel mixes with cooler air, resulting in sudden condensation. At times, a large amount of runoff from higher elevations is mistakenly conflated with a cloudburst. The term "cloudburst" arose from the notion that clouds were akin to water balloons and could burst, resulting in rapid precipitation. Though this idea has since been disproven, the term remains in use. Properties Rainfall rate equal to or greater than per hour is a cloudburst. However, different definitions are used, e.g. the Swedish wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagasaki
is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan. It became the sole port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hidden Christian Sites in the Nagasaki Region have been recognized and included in the UNESCO World Heritage List. Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War. Near the end of World War II, the American atomic bombings of Hiroshima and Nagasaki made Nagasaki the second and, to date, last city in the world to experience a nuclear attack (at 11:02 am, August 9, 1945 'Japan Standard Time (UTC+9)'). , the city has an estimated population of 407,624 and a population density of 1,004 people per km2. The total area is . History Nagasaki as a Jesuit port of call The first contact with Portuguese explorers occurred in 1543. An early visitor was Fernão Mendes Pinto, who came from Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans an archipelago of 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa. Tokyo is the nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the eleventh most populous country in the world, as well as one of the most densely populated and urbanized. About three-fourths of the country's terrain is mountainous, concentrating its population of 123.2 million on narrow coastal plains. Japan is divided into 47 administrative prefectures and eight traditional regions. The Greater Tokyo Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudflows
A mudflow or mud flow is a form of mass wasting involving fast-moving flow of debris that has become liquified by the addition of water. Such flows can move at speeds ranging from 3 meters/minute to 5 meters/second. Mudflows contain a significant proportion of clay, which makes them more fluid than debris flows, allowing them to travel farther and across lower slope angles. Both types of flow are generally mixtures of particles with a wide range of sizes, which typically become sorted by size upon deposition. Mudflows are often called mudslides, a term applied indiscriminately by the mass media to a variety of mass wasting events. Mudflows often start as slides, becoming flows as water is entrained along the flow path; such events are often called flow slides. Other types of mudflows include lahars (involving fine-grained pyroclastic deposits on the flanks of volcanoes) and jökulhlaups (outbursts from under glaciers or icecaps). A statutory definition of "flood-related mudsli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Meteorological Agency
The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation and research into natural phenomena in the fields of meteorology, hydrology, seismology and volcanology, among other related scientific fields. Its headquarters is located in Minato, Tokyo. JMA is responsible for gathering and reporting weather data and forecasts for the general public, as well as providing aviation and marine weather. JMA other responsibilities include issuing warnings for volcanic eruptions, and the nationwide issuance of earthquake warnings of the Earthquake Early Warning (EEW) system. JMA is also designated one of the Regional Specialized Meteorological Centers of the World Meteorological Organization (WMO). It is responsible for forecasting, naming, and distributing warnings for tropical cyclones in the No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagasaki Prefecture
is a prefecture of Japan located on the island of Kyūshū. Nagasaki Prefecture has a population of 1,314,078 (1 June 2020) and has a geographic area of 4,130 km2 (1,594 sq mi). Nagasaki Prefecture borders Saga Prefecture to the northeast. Nagasaki is the capital and largest city of Nagasaki Prefecture, with other major cities including Sasebo, Isahaya, and Ōmura. Nagasaki Prefecture is located in western Kyūshū with a territory consisting of many mainland peninsulas centered around Ōmura Bay, as well as islands and archipelagos including Tsushima and Iki in the Korea Strait and the Gotō Islands in the East China Sea. Nagasaki Prefecture is known for its century-long trading history with the Europeans and as the sole place of direct trade and exchange between Japan and the outside world during the ''Sakoku'' period. Nagasaki Prefecture is home to several of the Hidden Christian Sites in the Nagasaki Region which have been declared a UNESCO World Heritage Site. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1957 Isahaya Flood
is a city located in Nagasaki Prefecture, Japan. The city was founded on September 1, 1940. As of November 1, 2022, the city has an estimated population of 132,385 and a population density of 389 persons per km². The total area is . On March 1, 2005, the towns of Tarami, Moriyama, Iimori, Takaki and Konagai (all from Kitatakaki District) were merged to create the new and expanded city of Isahaya. The city was once part of Kitatakaki District, but due to this merger, the district has no more municipalities left and the district was officially dissolved. History In July 1957, a severe downpour within Nagasaki caused a large flood in Isahaya, with over 500 casualties and 3500 injuries reported in Isahaya alone. Geography Located in the central part of Nagasaki Prefecture. To the north of Isahaya City are mountainous lands of the Takayama mountain range. To the west is the base of the Nagasaki Peninsula and to the south is the base of Shimabara Peninsula. The northeaste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floods In Japan
Japan is the country that is most affected by natural disasters mainly due to it being in the Ring of Fire. Two out of the five most expensive natural disasters in recent history have occurred in Japan, in 1995 and 2011, costing $181 billion. Japan has also been the site of some of the 10 worst natural disasters of the 21st century. Many types of natural disasters occur in Japan such as tsunamis, floods, typhoons, earthquakes, cyclones, and even volcanic eruptions. The country has gone through thousands of years of natural disasters, affecting its economy, development, and social life. Some other major disasters in Japan were more recent, such as the January 1995 Great Hanshin earthquake and the March 2011 Tōhoku earthquake and tsunami, which triggered the Fukushima Daiichi nuclear disaster. Volcanic eruptions Many volcanic eruptions have taken place in Japan. List of major volcanic eruptions VEI-7 Volcanic eruptions There are three VEI-7 volcanoes in Japan. These are the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1982 In Japan
Events in the year 1982 in Japan. Incumbents *Emperor: Hirohito (Emperor Shōwa) *Prime Minister: Zenko Suzuki ( L–Iwate) until 27 November 1982, Yasuhiro Nakasone (L–Gunma) * Chief Cabinet Secretary: Kiichi Miyazawa (L–Hiroshima) until November 27, Masaharu Gotōda (L–Tokushima) * Chief Justice of the Supreme Court: Takaaki Hattori until September 30, Jirō Terata from October 1 * President of the House of Representatives: Hajime Fukuda (L–Fukui) * President of the House of Councillors: Masatoshi Tokunaga (L–national) * Diet sessions: 96th (regular session opened in December 1981, to August 21), 97th (extraordinary, November 26 to December 25), 98th (regular, December 28 to 1983, May 26) Governors * Aichi Prefecture: Yoshiaki Nakaya *Akita Prefecture: Kikuji Sasaki *Aomori Prefecture: Masaya Kitamura *Chiba Prefecture: Takeshi Numata *Ehime Prefecture: Haruki Shiraishi *Fukui Prefecture: Heidayū Nakagawa *Fukuoka Prefecture: Hikaru Kamei *Fukushima Prefec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landslides In Japan
Landslides, also known as landslips, are several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, deep-seated slope failures, mudflows, and debris flows. Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients, from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides. Gravity is the primary driving force for a landslide to occur, but there are other factors affecting slope stability that produce specific conditions that make a slope prone to failure. In many cases, the landslide is triggered by a specific event (such as a heavy rainfall, an earthquake, a slope cut to build a road, and many others), although this is not always identifiable. Causes Landslides occur when the slope (or a portion of it) undergoes some processes that change its condition from stable to unstable. This is essentially due to a decrease in the shear strength of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
