THE NEED FOR AN EVIDENCE-BASIS FOR EARTHQUAKE SURVIVAL TIPS
Marla Petal, Ph.D.
If you took the time to read Copp's advice and you thought it might have some merit, or if you passed it on to anyone else, please read this and pass this back up or down the lines. If you haven't, and just want a few good tips for earthquake safety you can skip all the way to #5 and #6.
#1 THE MYTH OF ANTICIPATING THE "TRIANGLE OF LIFE"
If Doug Copp has gotten your attention about earthquake safety, I'd like to address some of the claims he makes that may have piqued your curiosity - because it's always good to hone our ability to think critically - and there are things you can and should do to be safer from earthquakes.Yes, Copp is correct that there are places that after a building collapse are called "triangles of life". These "life safe voids" are the first places that search and rescue workers look for survivors. It's generally true that the larger the object and stronger the less it will compact. But don't be fooled. The force of earthquakes moves large and heavy objects. We don't know a) whether it is possible to anticipate where the life safe voids will be before the collapse, and b) whether it is possible to get there during the strong shaking of an earthquake. What we don't know in advance (but is worthy of research) is the expected collapse patterns in particular buildings or where these life safe voids will be when the shaking stops. If your building tilts in one direction, the "large and heavy object" that you are near, could crush you against the wall....
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http://www.cert-la.com/RejoinderToDougCopp.pdf
March 12, 2010