Earthquake Occurring at Cascadia Subduction Zone
Mitch Battros - Earth Changes Media
Wendy McCausland and Evelyn Roeloffs of the Cascade Volcano Observatory report that their analysis of seismic instruments south of Olympia, WA -- does show a subtle signal that may be the beginning of an anomalous strain event.
Earlier in the week, seismographs in the southern Hood Canal area began recording bursts of low-level shaking associated with what is called an episodic tremor-and-slip event. This 'slip' event is likely to continue along the North American plate that lies under much of the Pacific Northwest. This NA plate is compressed by the Juan de Fuca plate where the two meet just off the Pacific coast. This is the Cascadia Subduction Zone.
The ECM team will continue monitoring on going event and report them as they occur. Be sure and check back with us often over the next several days.
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The Last Cascadia Subduction Zone Mega Quake - January 26th 1700
Scientists believe the next Cascadia earthquake will be one of the largest on the planet measuring up to a 9.0 magnitude. The evidence of the great temblor 300 years ago was discovered along the coast of Washington and Oregon by Brian Atwater, a U.S. Geological Survey scientist in Seattle.
When Dr. Kenji Satake, of the Geological Survey of Japan, heard about Atwater's theory he realised that Japan could hold the answer. He explained that while 300 years ago is pre-history for America, Japan has written records of seismic events dating back to this time. What Satake was looking for was a special kind of tsunami.
One day the people of the Pacific Northwest will face a megathrust earthquake. So how big will it be? What damage will it cause? When will it happen? The difference today verses 300 years ago --- is this time everyone is watching close.
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