The epicenter was at a depth of 147.46 km (92 miles). 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. Records show that the impacts of the tsunami were experienced as far away as Peru, California, Mexico, Russia, Japan, and Ecuador. 8. This M8.7 Rat Islands earthquake was characterized by roughly 600 km of rupture. 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 . 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 1944 Tōnankai earthquake occurred at 13:35 local time on 7 December. The mission, to "advance science, engineering, and innovation throughout the world for the benefit of all people," has propelled the organization to the forefront of national and international initiatives. Higher levels of shaking observed on Nias are attributed to a large aftershock, less than an hour later. These earthquakes are the 1938 Alaskan, 1946 Aleutian, 1957 Aleutian, 1964 Prince William Sound, and 1965 Rat Islands earthquakes. The Rat Islands form part of the Aleutian Islands, a chain of volcanic islands forming an island arc, that results from the subduction of the Pacific Plate beneath the North American Plate. Event ids that are associated to the earthquake: ak020ffomms0, us7000clh3. This event may have been triggerred by the large displacement near the mainshock epicenter. It caused a devastating tsunami which led to several thousand fatalities. 1965-03-30 02:27:06 UTC 7.6 magnitude, 20 km depth Rat Islands, Aleutian Islands 7.6 magnitude earthquake 1965-03-30 02:27:06 UTC at 02:27 March 30, 1965 UTC It triggered a tsunami of over 10 meters (33 feet) on Shemya Island, Alaska, but thanks to its distant location, caused very little damage. 3675 (Jun. Science 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 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. In 1965, 1969, and 1971, the U.S. Department of Defense and the Atomic Energy Commission conducted underground nuclear tests on Amchitka Island. Rat Islands, Aleutian Islands has had: (M1.5 or greater) 0 earthquakes in the past 24 hours ... 8.7 magnitude earthquake. The earthquake was felt as far away as the Malay peninsula and the eastern part of Java. A tsunami earthquake triggers a tsunami of a magnitude that is very much larger than the magnitude of the earthquake as measured by shorter-period seismic waves. The 1965 Rat Islands earthquake was one of the largest in recorded history with a magnitude of 8.7. Blog. The last great earthquake at the Rat Islands was in 1965, when a magnitude-8.7 temblor triggered a huge 32-foot-high (10 meters) tsunami on Shemya island. The 1965 Rat Islands earthquake occurred at 05:01 UTC, on 4 February (19:01, 3 February local time ). 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. It caused a damaging tsunami that was particularly severe near Padang, where a 150–200 ton English ship was driven 1 km inland up the Arau River. The 1965 Rat Islands earthquake share common features with the 1963 Kuril Islands earthquake and the 1964 Alaska earthquake. It triggered a large tsunami that caused serious damage along the coast of Wakayama Prefecture and the Tōkai region. Some dam-age to runways and buildings was re- ported. 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 2002 Sumatra earthquake occurred at 01:26 UTC on 2 November. A major earthquake, registering 73/4 on the logarithmic magnitude scale (Ms) of Gutenberg and Richter (1), occurred on 4 February 1965, in the Rat Island region of the Aleutian Island arc (Fig. Total losses were around $5 million. It had an estimated magnitude of 8.1 on the moment magnitude scale and a maximum felt intensity of greater than 5 shindo. Feb 4, 1965: Magnitude 8.7 quake in the Rat Islands, Alaska caused a 10.7-m-high tsunami on Shemya Island and no loss of life. The 1984 Northern Sumatra earthquake occurred with a moment magnitude of 7.2 on November 17 at 06:49 UTC. With effects felt in parts of Northern Sumatra, near the mainshock epicenter magnitude in the range of 8.8–9.2.! 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