Cascadia

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VAA Science lecture 11/8 features noted earthquake expert John Vidale

September 14, 2015

I'm excited to share about a lecture in VAA's upcoming Science series, featuring Professor John Vidale from the University of Washington.  Vidale is our state seismologist, and in his role as director of the Pacific Northwest Seismic Network, he's also leading in the creation of the new Cascadia earthquake early warning system. We're very lucky to have this seismology rockstar coming to Vashon!

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Cascadia Quake Potentially More Damaging than San Andreas or Japan’s Tōhoku

March 11, 2012

imageIn “Quake catastrophe like Japan's could hit Pacific Northwest, new data show” M. Alex Johnson of msnbc.com also reports on last month’s reports at the American Association for the Advancement of Science – noting that the Cascadia quake has numerous parallels with Japan’s Tōhoku disaster one year ago.

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15% Chance of Local Cascadia Quake & Tsunami in Next 50-60 Years

March 11, 2012

PNSN LogoAccording to Bill Steele, the public is woefully unprepared for a certain disaster: we just don’t know when. Mr. Steele is Seismology Lab Coordinator for the Pacific Northwest Seismograph Network (PNSN) at the University of Washington Department of Earth and Space Sciences where he has worked since 1993.

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Cascadia Mega-Quake Threat-- Even Larger than Previously Thought?

February 21, 2012

The red dots represent aftershocks from the Japan quake, which roughly trace the area that shook hardest there. Superimposed on a map of the Northwest, the result shows where the strongest ground motion is likely to strike during the next quake on the Cascadia subduction zone, the underwater fault marked by the black line. The green line is the relative location of Japan's subduction zone.  Courtesy of the Nevada Seismological Laboratory, University of Nevada, RenoJapan’s Tohoku earthquake last year has provided valuable data that is altering scientists’ understanding of our local Cascadia earthquake potential. Geologists have documented some 22 megaquakes over the last 10,000 years - every 200 to 1,000 years, averaging some 500 years. The region’s last was on January 26, 1700.

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Cascadia Mega-Fault Due to Rupture

January 11, 2012

…sometime in the next 500 years, according to a great blog a couple weeks back by the PSSN’s John Vidale, a regular contributor to their “Seismo Blog” How likely is it to go? Well you’ll have to read his blog that breaks down some of the inputs to evaluating the actual risk factor – which I think he never actually stated…

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Do you know Washington’s four kinds of earthquake sources?

January 11, 2012

Cascadia-Seismic-Zone1 Cascadia Subduction Zone
Example: the 1700 earthquake that caused shaking and a tsunami that inundated the Oregon coast and reached as far as Japan.

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Science & Analysis of Japanese Quake Paints a Grim Message for the Northwest

July 10, 2011

imageOregon and Washington are likely to have a very serious earthquake in future decades, according to a disturbing article in the Oregonian.

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NW Media Focuses on Earthquakes

June 15, 2010

Of interest on KCTS-9

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Cascadia: The Hidden Fire
Tuesday, 6/8/10, at 8:00 p.m.
Seismic events around the globe offer insight into the super-quake-prone areas along the Pacific Rim. Producer Michael Lienau will join us in studio.

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