Area of the Cascadia subduction zone, including the Cascade Volcanic Arc (red triangles), site of recurring megathrust earthquakes at average intervals of about 500 years, including the Cascadia Earthquake of USGS
An ocean data buoy is alerting to an “event” in the Cascadia Subduction Zone off the west coast of Oregon. This is where a magnitude 9 earthquake hit in According to the data buoy, the water column height (depth) fell sharply within minutes.
The change came after a massive drill to determine the Pacific Northwest's ability to survive a Cascadia Subduction Zone earthquake and resulting tsunami.
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The Really Big One An earthquake will destroy a sizable portion of the coastal Northwest. The question is when. The next full-margin rupture of the Cascadia subduction zone will spell the worst natural disaster in the history of the continent.
Research shows Cascadia Subduction Zone reacts to tidal forces; ‘slow slip’ building up pressure on fault
The Cascadia Subduction Zone off the coast of North America spans from northern California to southern British Columbia. This subduction zone can produce earthquakes as large as magnitude 9 and corresponding tsunamis.
An earthquake will destroy a sizable portion of the coastal Northwest. The question is when. Get prepared as the next full-margin rupture of the Cascadia subduction zone will spell the worst natural disaster in the history of the continent.
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