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1986 Hualien Earthquake
On November 14, 1986, a strong earthquake with a recorded magnitude of 7.4 struck Hualien City in Taiwan. The earthquake killed 15 people and injured 44. Landslides occurred along a highway between Su'ao and Hualien. The Taiwan–Guam and Taiwan–Okinawa undersea telecommunication cables were damaged. The earthquake triggered a tsunami with a maximum height of . The tsunami sank 10 fishing boats in Hualien and Yilan and was attributed to six injuries. Aftershocks The earthquake was preceded by a 6.5 foreshock on 20 May 1986 which struck north of Hualien at depth. The foreshock produced aftershocks located on two parallel, steep, east-dipping thrust faults. Aftershocks were distributed northwest of the mainshock and had depths shallower than , suggesting the earthquake ruptured unilaterally, northwest, and upward. The 14 November 1986 earthquake produced aftershocks largely concentrated at depths or shallower in the upper crust. Aftershocks extended deep. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquake
An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from those that are so weak that they cannot be felt, to those violent enough to propel objects and people into 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 period. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. The word ''tremor'' is also used for Episodic tremor and slip, non-earthquake seismic rumbling. At the Earth's surface, earthquakes manifest themselves by shaking and displacing or disrupting the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hualien City
Hualien City (; Wade-Giles: Hua¹-lien² Shih⁴; Hokkien POJ: ''Hoa-lian-chhī'' or ''Hoa-liân-chhī'') is a county-administered city and the county seat of Hualien County, Taiwan. It is located on the east coast of Taiwan on the Pacific Ocean, and has a population of 106,368 inhabitants. Name Hualien County annals () record that the city was called "Kilai" () until the early twentieth century. This name refers to the Sakiraya Taiwanese aborigines and their settlement. After Taiwan came under Japanese rule in 1895 its governors sought to change the name because "Kilai" is pronounced the same as the Japanese word for . The name was eventually changed to . After World War II the incoming Kuomintang-led Republic of China retained the Kanji spelling but shortened the name to just , or ''Hualien'' via Chinese romanization. History The Spaniards built mines for gold in Hualien in 1622. Permanent settlements began in 1851, when 2,200 Han Chinese farmers led by Huang A-fong (� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Su'ao
Su'ao Township (), postal romanization, alternately romanized as Su-ao, is located in southern Yilan County, Taiwan, Yilan County, Taiwan, is an Township (Taiwan), urban township that is famous for its seafood restaurants and Su'ao Cold Spring, cold springs. It is a terminus of National Highway No. 5 (Taiwan), National Highway No. 5, the Suhua Highway Improvement Project, Su'ao-Hualien Express Way, and the North-Link Line of the Taiwan Railway Administration. It also has two large harbors: Su'ao Port, a multi-function seaport that also houses a naval base; and Nanfang-ao Port, a major fishing port of Taiwan. History Japanese rule During Taiwan under Japanese rule, Japanese rule, the area was established as , Suō District, Taihoku Prefecture. Post-war After World War II, the town was converted to a township under Taipei County. In 1950, the township was put under the newly established Yilan County. Demographics As of December 2016, Su'ao had 14,109 households and a total popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geophysical Data Center
The United States National Geophysical Data Center (NGDC) provided scientific stewardship, products and services for geophysical data describing the solid earth, marine, and solar-terrestrial environment, as well as earth observations from space. In 2015, NGDC was merged with the National Climatic Data Center (NCDC) and the National Oceanographic Data Center (NODC) into the National Centers for Environmental Information (NCEI). Location and controlling bodies The NGDC, was located in Boulder, Colorado as a part of the US Department of Commerce (USDOC), National Oceanic & Atmospheric Administration (NOAA), National Environmental Satellite, Data and Information Service (NESDIS). Data holdings NGDC's data holdings contained more than 300 digital and analog databases, some of which were very large. As technology advanced, so did the search for more efficient ways of preserving these data. This data is now maintained by the NCEI. Data contributors NGDC worked closely with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Oceanic And Atmospheric Administration
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditions, charts the seas, conducts deep sea exploration, and manages fishing and protection of marine mammals and endangered species in the U.S. exclusive economic zone. Purpose and function NOAA's specific roles include: * ''Supplying Environmental Information Products''. NOAA supplies to its customers and partners information pertaining to the state of the oceans and the atmosphere, such as weather warnings and forecasts via the National Weather Service. NOAA's information services extend as well to climate, ecosystems, and commerce. * ''Providing Environmental Stewardship Services''. NOAA is a steward of U.S. coastal and marine environments. In coordination with federal, state, local, tribal and international authorities, NOAA manages the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsunami
A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations, landslides, glacier calvings, meteorite impacts and other disturbances) above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event. Tsunami waves do not resemble normal undersea currents or sea waves because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide. For this reason, it is often referred to as a tidal wave, although this usage is not favoured by the scientific community because it mig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust Fault
A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks. Thrust geometry and nomenclature Reverse faults A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. If the angle of the fault plane is lower (often less than 15 degrees from the horizontal) and the displacement of the overlying block is large (often in the kilometer range) the fault is called an ''overthrust'' or ''overthrust fault''. Erosion can remove part of the overlying block, creating a ''fenster'' (or '' window'') – when the underlying block is exposed only in a relatively small area. When erosion removes most of the overlying block, leaving island-like remnants resting on the lower block, the remnants are called ''klippen'' (singular '' klippe''). Blind thrust faults If the fault plane terminates before it reaches the Earth's surface, it is referred to as a ''blind thrust'' fault. Because of the lack of surface evidence, blind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1986 Earthquakes
The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 **Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. **Spain and Portugal enter the European Community, which becomes the European Union in 1993. *January 11 – The Sir Leo Hielscher Bridges, Gateway Bridge in Brisbane, Australia, at this time the world's longest prestressed concrete free-cantilever bridge, is opened. *January 13–January 24, 24 – South Yemen Civil War. *January 20 – The United Kingdom and France announce plans to construct the Channel Tunnel. *January 24 – The Voyager 2 space probe makes its first encounter with Uranus. *January 25 – Yoweri Museveni's National Resistance Army Rebel group takes over Uganda after leading a five-year guerrilla war in which up to half a million people are believed to have been killed. They will later use January 26 as the official date to avoid a coincidence of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Taiwan
Taiwan is in a seismically active zone, on the Pacific Ring of Fire, and at the western edge of the Philippine Sea Plate.Taiwan Yearbook 2005, p. 23 Geologists have identified 42 active faults on the island, but most of the earthquakes detected in Taiwan are due to the convergence of the Philippine Sea plate and the Eurasian Plate to the east of the island. Most of the earthquakes registered in Taiwan actually occur off the east coast and cause little damage, whereas smaller quakes beneath the island itself have historically proven more destructive. The first recorded earthquake in Taiwan was in 1624, the founding year of Dutch Formosa. Between 1901 and the year 2000 there were 91 major earthquakes in Taiwan, 48 of them resulting in loss of life. The most recent major earthquake was the 921 earthquake, which struck on 21 September 1999, and claimed 2,415 lives. Many modern buildings in Taiwan are constructed with earthquake safety in mind, including Taipei 101, which had to cope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
