Rupture Zones of Great Earthquakes in the Alaska-Aleutian Arc, 1784 to 1980
- 19 December 1980
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 210 (4476) , 1343-1345
- https://doi.org/10.1126/science.210.4476.1343
Abstract
Historical documents indicate that great earthquakes ruptured at least a 500-kilometer-long segment of the plate boundary near the Alaska Peninsula in 1788 and 1847. At least half of a major seismic gap in the Shumagin Islands ruptured during those shocks but has not experienced a great earthquake for at least 77 years. Large shocks along this and other plate boundaries occur in bursts followed by several decades during which there is very little energy release.Keywords
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