This megathrust earthquake also triggered a devastating tsunami that caused damage along the Gulf of Alaska, the West Coast of the United States, and in Hawaii. [1] This was not an aftershock, but a normal fault event within the outer rise of the subducting plate, triggered by the earlier event. The trench extends for 3,400 kilometres (2,100 mi) from a triple junction in the west with the Ulakhan Fault and the northern end of the Kuril–Kamchatka Trench, to a junction with the northern end of the Queen Charlotte Fault system in the east. Public engagement activities are creating an open dialogue with scientists on societal issues such as global climate change. A minor earthquake with magnitude 3.3 (ml/mb) was detected on Sunday, Rat Islands, Aleutian Islands, Alaska (0 miles). 1). A light earthquake magnitude 4.1 (ml/mb) has struck on Tuesday, Rat Islands, Aleutian Islands, Alaska (0 miles). The discrepancy was resulted from that the earthquake had a long source duration of about 130 s, and by calculating the seismic moment, the magnitude would be Mw 7.6 or Mw 7.8, according to different sources. This earthquake was followed thirty minutes later by the 1906 Valparaíso earthquake in Chile, but the two events are not thought to be linked. There were more than 100 fatalities and up to 2,585 injuries. Rat Islands, 1965 – Magnitude 8.7 Rat Island covers a small area in the state of Alaska in the United States.Back then, Alaska was only a new state in the US when the major earthquake hit the land. This plate boundary, the Alaska-Aleutian megathrust, has been the location of many megathrust earthquakes. The Rat Island earthquake of February 4, 1965 (origin time 05h 01m 21.8s, h = 40 km), is one of the largest earthquakes recorded in recent years. Instead, this quake was caused by two continental plates colliding. Science Careers, found in print and online, provides relevant career articles published weekly, thousands of job postings updated several times a week, and other career related services. Science The epicentre was located off the coast of Sumatra, near the island of Nias, where building damage was reported. For more information, access www.aaas.org. The Rat Island earthquake of February 4, 1965 (origin time 05h 01m 21.8s, h = 40 km), is one of the largest earthquakes recorded in recent years. As a convergent plate boundary, the trench forms part of the boundary between two tectonic plates. Published 51 times a year, Science is renowned for its highly cited, peer-reviewed research papers, its special strength in life science disciplines, and its award-winning coverage of breaking science news. West Andaman Fault is a major north–south trending strike-slip fault zone that forms the boundary between the forearc, developed above the highly oblique subduction zone between the Indian Plate and the Burma Plate, and the Andaman Sea. The westernmost Aleutians megathrust earthquake followed a year later on February 4, 1965. E … Aftershocks of the 4 February 1965 Rat Island Earthquake Science. This earthquake could be strongly felt in parts of Northern Sumatra, including Padang and Medan. They are particularly dangerous as a large tsunami may arrive at a coastline with little or no warning. The 1833 Sumatra earthquake occurred on November 25 at about 22:00 local time, with an estimated magnitude in the range of 8.8–9.2 Mw . For terms and use, please refer to our Terms and Conditions The earthquake had a magnitude of 8.7 and triggered a 32-ft high tsunami on Shemya Island. The tsunami was generated by a major earthquake in the Pacific Ocean, 130 kilometers (81 mi) from the shore of Kamchatka, with an estimated magnitude of 9.0. Nearly 2 months later, that triggered a tsunami. The great Rat Islands underthrusting earthquake (M w = 8.7), of February 4, 1965, represents subduction of the Pacific plate beneath the North American plate along a 600-km segment of the western end of the Aleutian Islands. Exact location of earthquake, longitude 178.1164 East, latitude 51.1918 North, depth = 35 km. 4, 1965), American Association for the Advancement of Science. This epicenter distribution, coupled with the sharp western boundary of the epi-center zone, suggests the presence of a structural element transverse to the main arc struc,ture and bounded on the west by a major fracture zone. The sharp boundary conditions of the epicenter locations suggest block faulting about the Rat Islands as a subsystem of the Aleutian Islands arc structure. The sharp boundary conditions of the epicenter locations suggest block faulting about the Rat Islands as a subsystem of the Aleutian Islands arc structure. The 1907 Sumatra earthquake occurred on January 4 at 05:19:12 UTC. The rupture process and tectonic implications of the great 1964 Prince William Sound earthquake. The great Rat Islands underthrusting earthquake (M w = 8.7), of February 4, 1965, represents subduction of the Pacific plate beneath the North American plate along a 600-km segment of the western end of the Aleutian Islands. An extended series of websites includes comprehensive career development resources. Had a magnitude of 8.1 on the distribution of Aftershocks megathrust, been. Parameters have been triggerred by the Chilean event, rather than the Aleutian Islands Aleutian! The Sunda megathrust by an earthquake of magnitude 7.6 afterwards, one just eleven minutes after the Good earthquake. 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