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The Giant Cascadia Earthquake of 1700

Thumbnail image of fact sheet Japanese history records a mysterious tsunami in 1700 that was unaccompanied by the usual earthquake. Modern USGS research has traced the source of that tsunami to a large seismic event on the Cascadia Subduction Zone of Washington and Oregon. Watch our videotaped public lecture to find out how sleuthing into the past helps us learn about geologic hazards of the present.

Get the full story in our publication The Orphan Tsunami of 1700--Japanese Clues to a Parent Earthquake in North America.

 

 

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