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Earthquakes in Alaska

Open-File Report 95-624

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Abstract

Earthquake risk is high in much of the southern half of Alaska, but it is not the same everywhere. This map shows the overall geologic setting in Alaska that produces earthquakes. The Pacific plate (darker blue) is sliding northwestward past southeastern Alaska and then dives beneath the North American plate (light blue, green, and brown) in southern Alaska, the Alaska Peninsula, and the Aleutian Islands. Most earthquakes are produced where these two plates come into contact and slide past each other. Major earthquakes also occur throughout much of interior Alaska as a result of collision of a piece of crust with the southern margin.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Earthquakes in Alaska
Series title:
Open-File Report
Series number:
95-624
Year Published:
1995
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Alaska Science Center
Description:
Report: 40.72 x 21.29 inch poster; Report: 1 p.
Number of Pages:
1
Country:
United States
State:
Alaska
Additional Online Files(Y/N):
Y