October 6, 2009
Surviving a Tsunami in the U.S.?
The recent news of tsunamis in
The article is written conversationally and explains complex concepts and terms in a simple way. Hey, if nothing else, check it out for the salad recipe. No kidding. Here’s an excerpt of the article with a link to it.
Subduction Zone Tsunami
By John Silveira
“Let’s say the quake happens,” Dave began. “If the highest wave we can expect to see from one generated out here on the Cascadia Subduction Zone is a 100-footer, is anyone above 100 feet elevation safe? I mean, does John just have to figure out where there’s a point near his house that’s 100 feet above sea level and go there if there’s a quake?”
“No. That may not be enough. There are other factors that figure in. For example, the topography of the land below the waterline can change a wave’s height. Underwater canyons can channel the wave—it’s called ‘focusing’—and a wave that should be just 30 feet high may get focused and come ashore as a 60- or 100-foot wave. And, of course, that means that other spots on the shore would necessarily receive smaller waves.
Read the whole article here: www.backwoodshome.com/articles2/silveira94.html#
Excerpt used with permission of Backwoods Home Magazine. www.backwoodshome.com 1-800-835-2418
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2 Comments on Surviving a Tsunami in the U.S.? »
November 22, 2009
Mia @ 10:02 pm:
To me, it sounds a bit like media scare tactics rather than a real danger that people need to be afraid of and plan for. There are so many things we are supposed to be afraid of and prepared for ‘out there’ in the big scary world. I think the anxiety and stress of them all will kill us more readily than anything else.
November 23, 2009
John @ 6:51 am:
Point taken. The important thing is to be aware of potential threats. For example, most of us won’t ever be struck by lightning. There are people who have been though, so lightning strikes are a reality, regardless of how remote. Knowing the advice on how to avoid lightning strikes doesn’t mean we’re afraid of them. It’s part of the preparedness mindset. You have to keep a lot of things filed away mentally. You never know when they might be useful.