How many people died during the Rat island earthquake?
At least 88 people killed, nearly 2,000 injured, about 5,500 houses destroyed and 11,000 houses damaged in the Bojnurd-Shirvan area, Iran. Damage estimated at more than 30 million U.S. dollars. Felt in many parts of northeastern Iran, including Esfarayen, Mashhad, Neyshabur, Quchan, and Sabzevar.
What happened during the Rat island earthquake?
A magnitude 8.2 earthquake in the Rat Islands, Aleutian Islands, caused a tsunami that was observed in Hawaii, Japan, and elsewhere in the Pacific. The earthquake caused minor damage at Adak, Attu, Amchitka, and Shemya Islands.
What fault caused the Rat island earthquake?
The overriding plate along the western Aleutian subduction zone is laterally segmented into a series of rigid tectonic blocks separated by fault controlled canyons and extensional basins. This tectonic setting controlled the rupture behavior of the M8. 7 event.
What caused the Rat Island earthquake in 1965?
The earthquake was associated with a 600 km long rupture along the plate boundary, based on the distribution of aftershocks. The pattern of energy release suggest the presence of three asperities along the plate interface, each causing a pulse of moment release.
What caused the Nias earthquake?
Despite the proximity of the epicenter to that for the 2004 Indian Ocean earthquake, it ruptured a separate segment of the Sunda megathrust and was most likely triggered by stress changes associated with that earlier event.
Why did the Rat Island earthquake happen?
Tectonic setting 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. This plate boundary, the Alaska-Aleutian megathrust, has been the location of many megathrust earthquakes.
How big was the tsunami on Shemya Island?
It had a magnitude of 8.7 and triggered a tsunami of over 10 m on Shemya Island, but caused very little damage. 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.
How much damage did the tsunami do to the islands?
Flooding from the tsunami caused $10,000 worth of damage on Amchitka Island. Minor damage from the earthquake was recorded on both Attu and Shemya islands in the form of cracks in runways.
How big was the tsunami in Alaska in 1965?
United States ( Alaska) Max. intensity. VI ( Strong) Tsunami. 10.7 m (35 ft) The 1965 Rat Islands earthquake occurred at 05:01 UTC, on 4 February (19:01, 3 February local time ). It had a magnitude of 8.7 and triggered a tsunami of over 10 m on Shemya Island, but caused very little damage.
Where was the Unimak Island earthquake in 1946?
The April 1, 1946 M8.6 Unimak Island earthquake, located in the central Aleutian arc, was characterized by slow rupture followed by a devastating Pacific-wide tsunami that was observed as far south as the shores of Antarctica.