Tsunami

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Vashon Beachcomber Covers Vashon’s Potential Tsunami

April 12, 2012

clip_image002Today’s Vashon Beachcomber had a bunch of great quotes that Susan Riemer got from next week’s expert speakers. She especially covered the little reported tsunami risk that could damage our ferry docks, certain waterfront locations (those perpendicular to the surge), and perhaps the isthmus between Vashon and Maury Islands. Some information on this can also be found on our tsunami page.

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Two State Experts on Vashon Earthquake & Tsunami Risks + What You Can Do for your Home, Family & Pets!

March 26, 2012

Vashon at Risk PosterVashonBePrepared is celebrating our 5th anniversary by sponsoring two of the state's foremost experts on Vashon's unique earthquake and tsunami risks. Recent scientific reports, a number based on lessons from Japan's devastating Tōhoku earthquake just a year ago, have all updated our understanding of the damage that will hit our region sometime in the coming decades or centuries. The only question is when - not if - it will occur.

Fortunately these experts can help homeowners and families understand what each of us can do to protect ourselves, families, pets, livestock, businesses and property from these predicted disasters. A large portion of the evening will be set aside to get your questions answered. Handouts for families, home and business owners will also be available.

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Is Vashon at Risk for Tsunamis?

March 21, 2012

VashonTsunamiMost folks think of an overseas or Cascadia based quake as generating a terrible tsunami – and they are right. However such a tsunami is not likely to cause massive damage to Vashon from what I’ve heard – largely due to the moderating influence of the Straits of Juan de Fuca. (It will be interesting to verify this at our upcoming April 18th community meeting with Washington State experts).

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In Memory of the 2011 Japanese Earthquake and Tsunami

March 11, 2012

Just a brief note to commemorate those whose lives have been disrupted and lost by the Tōhoku disaster one year ago today.

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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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New Guidance for Seattle Citizens to Survive Tsunamis and Earthquakes

April 3, 2011

www.seattle.gov/emergency has a new set of nice publications for citizens with very basic advice to citizens for surviving and earthquake or tsunami.

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VashonBePrepared Meeting to Discuss Little Known Vashon Earthquake Hazard

April 1, 2011

Earthquake scientists from the U.S. Geological Survey use computers to generate “shake maps” like this one. The stripe in the center of the shake map, colored red, shows where the most intense shaking would occur in a hypothetical 7.1 magnitude earthquake on the Tacoma Fault. Geological evidence indicates a similar earthquake last occurred about 1,100 years ago. More details of the Tacoma Fault Scenario study can be seen at http://pubs.usgs.gov/fs/2010/3023/. In just the last two years, federal earthquake scientists have completed analysis of the Tacoma Fault. As it turns out, the Tacoma Fault actually runs directly across the center of Vashon, the community that could be most affected if it ruptures. The latest computer analysis indicates that shaking from the fault could be as severe as the recent earthquakes in Christchurch and Sendai. That makes it doubly or even triply important for all of us to be prepared to sustain ourselves for as long as 10 days at home until help can arrive.

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Visual Results of Japanese Tsunami

March 15, 2011

www.abc.net.au/news/events/japan-quake-2011/beforeafter.htm has incredible photos of the Japanese earthquake’s aftereffects – as contrasted with an initial view of the same scene.

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