Summary

Cascadia subduction zone.

This is the site of recurring megathrust earthquakes at average intervals of about 500 years, including the Cascadia Earthquake of 1700.

Source: [1], specifically [2]

Licensing

This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.

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Previous file history

• 04:07:55, 10 January 2005 (UTC) . . Curps (Talk | contribs) . . 502x739 (30,673 bytes) ({{PD-USGov-Interior-USGS}})

Previous description history

• 20:39:16, 18 July 2007 (UTC) Remember the dot (Talk | contribs) (ShouldBePNG)
• 11:19:47, 18 May 2007 (UTC) Joshua Crowgey (Talk | contribs) (/* Source */ removed vulgarity)
• 15:30:45, 17 May 2007 (UTC) 168.212.80.1 (Talk | contribs) (/* Source */)
• 08:32:27, 10 January 2005 (UTC) Curps (Talk | contribs)
• 04:10:37, 10 January 2005 (UTC) Curps (Talk | contribs)
• 04:07:55, 10 January 2005 (UTC) Curps (Talk | contribs) ({{PD-USGov-Interior-USGS}})

Format

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