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The Aleutian island arc formed ~50-55 ma as a result of Kula Plate subduction under the North American Plate before the Pacific plate arrived. [3] There are three stratigraphic units of the Aleutian island arc: volcanic rocks from ~55-33 ma, marine sedimentary rocks from ~23-33 ma, and sedimentary and igneous rocks from ~5 ma-present. [3]
The White Alice Communications System (WACS) was a United States Air Force telecommunication link system constructed in Alaska during the Cold War. It featured tropospheric scatter links and line-of-sight microwave radio links .
Alaska is larger than all but 18 sovereign nations (it is slightly larger than Iran but slightly smaller than Libya). Alaska is home to 3.5 million lakes of 20 acres (8.1 ha) or larger. [3] Marshlands and wetland permafrost cover 188,320 square miles (487,700 km 2) (mostly in northern, western and southwest flatlands).
The Aleutian Arc is a large volcanic arc of islands extending from the Southwest tip of the U.S. state of Alaska to the Kamchatka Peninsula of the Russian Federation. It consists of a number of active and dormant volcanoes that have formed as a result of the subduction of the Pacific plate beneath the North American plate along the Aleutian Trench.
The earthquake was associated with a 600 km long rupture along the plate boundary, based on the distribution of aftershocks. [4] The pattern of energy release suggest the presence of three asperities along the plate interface, each causing a pulse of moment release. Modelling of the tsunami supports the idea that the earthquake consisted of ...
Tectonic map of Alaska and northwestern Canada showing main faults and historic earthquakes. The Queen Charlotte Fault is an active transform fault that marks the boundary of the North American plate and the Pacific plate. [1] [2] It is Canada's right-lateral strike-slip equivalent to the San Andreas Fault to the south in California. [3]
Boeing and Alaska Airlines have separately denied any legal responsibility for the injuries allegedly caused to dozens of passengers after a door plug blew out of a 737-Max 9 jet during a flight ...
English: Map of the US state of Alaska relative to the rest of the country using a constant projection. A vector reproduction of Map of USA AK full.png based on the public domain location map from [1] .