The 1975 Near Islands earthquake occurred at 08:43
UTC on February 2 off the coast of
Attu Island
Attu ( ale, Atan, russian: Атту, link=no) is an island in the Near Islands (part of the Aleutian Islands chain). It is the westernmost point of the U.S. state of Alaska. The island became uninhabited in 2010, making it the largest uninhabite ...
,
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
. The earthquake had a
surface wave magnitude
The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements of Rayleigh surface waves that travel along the uppermost layers of the Earth. This ma ...
of 7.6 and a maximum Mercalli intensity of IX (''Violent''). It caused heavy damage on
Shemya Island
Shemya or Simiya ( ale, Samiyax̂) is a small island in the Semichi Islands group of the Near Islands chain in the Aleutian Islands archipelago southwest of Alaska, at . It has a land area of , and is about southwest of Anchorage, Alaska. It is ...
, injuring 15 residents. The runways of
Shemya Air Force Base
Eareckson Air Station , formerly Shemya Air Force Base, is a United States Air Force military airport located on the island of Shemya, in the Alaskan Aleutian Islands.
The airport was closed as an active Air Force Station on 1 July 1994. Howev ...
sustained cracks up to wide, and crevices with as much as of displacement were observed on the island.
See also
*
List of earthquakes in 1975
This is a list of earthquakes in 1975. Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable for some other reason. All dates are listed according to UTC time. Maximum intensities ...
*
List of earthquakes in Alaska
This is an incomplete list of earthquakes in Alaska.
See also
*Geology of Alaska
References
{{Authority control
Earthquakes
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alask ...
*
List of earthquakes in the United States
The following is a list of notable earthquakes and tsunamis which had their epicenter in areas that are now part of the United States with the latter affecting areas of the United States. Those in ''italics'' were not part of the United States whe ...
References
External links
*
Rat Islands
The Rat Islands ( ale, Qax̂um tanangis, russian: Крысьи острова) are a group of American High islands, volcanic islands in the Aleutian Islands in southwestern Alaska, between Buldir Island and the Near Islands group to its west, ...
1975 in Alaska
Near
NEAR or Near may refer to:
People
* Thomas J. Near, US evolutionary ichthyologist
* Near, a developer who created the higan emulator
Science, mathematics, technology, biology, and medicine
* National Emergency Alarm Repeater (NEAR), a former ...
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