Monday, November 12, 2012

Alaska M6.4 earthquake

This is a tiny earthquake for the region, but it is deep in the ocean crust, so I find it interesting.  Must be some high stresses there!  The whole Alaska area has been lit up like a Christmas tree, so I watch it with interest.

Alaskan Christmas!

I once did a big study of the 64 quake.  It was all soft soil damage, so I doubt Anchorage will do well the next time.  Decrepit old buildings on rock didn't have their toilets cracked.  If we had instruments we would have found a PGV of under 10 cm/s on rock, and 1-200 cm/s on soil.  I wonder if we even have the instruments now?

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