DGD wrote:
PVT wrote: "I think the depth of this quake, 25 miles, made the damage much lighter than had it been a much shallower quake. "
Steve, that's no doubt what saved CR in this 7+ terremoto. Wikipedia says the quake 2010 Haiti (size of Maryland) was 7.0 at a depth of 8.1 miles and killed 90,000 to 316,000, depending on who you believe, 300,000 injured, 1,000,0000 homeless, billion+ in damages, $100 million US Govt foreign aid alone, not to mention other govt's or private aid.
I will interested in reading the scientific data on this one re: why it occurred so deep (though the area was predicted for along time now) and what is the predictability/likelihood of another strong one occurring at a higher elevation, if that's the word.
It has long been acknowledged that the depth of the occurrence can have a major effect on the damage that occurs. However, to compare the damage in Haiti to damage from yesterdays quake in Costa Rica and come to the conclusion that it was due to depth is not totally accurate. The construction standards in Costa Rica while they may pale as compared to the codes in use in earthquake prone areas like LA they certainly are far superior to what is found in Haiti. Just looking at the pictures of the devastation in Hatti and seeing how most houses were just tin shacks with no plumbing it is easy to see why the loss of life was high.
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