Evidence for Great Holocene Earthquakes Along the Outer Coast of Washington State

Atwater BF. 1987. Evidence for Great Holocene Earthquakes Along the Outer Coast of Washington State. Science. 236(4804):942-944

From the Abstract: "Intertidal mud has buried extensive, well-vegetated lowlands in westernmost Washington at least six times in the past 7000 years. Each burial was probably occasioned by rapid tectonic subsidence in the range of 0.5 to 2.0 meters. Anomalous sheets of sand atop at least three of the buried lowlands suggest that tsunamis resulted from the same events that caused subsidence. These events may have been great earthquakes from the subduction zone between the Juan de Fuca and North America plates." Area includes Olympic National Park, WA.

Type
Journal Article
Authors
Atwater, Brian
Units
OLYM
Keywords
Coastal, earthquake potential, Geology, Holocene, Physical Sciences, Tectonics

Series

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