Wednesday, February 11, 2015

M6.9 earthquake Argentina

A very deep subduction earthquake.

It has a perfect subduction fault plane solution.  It is so deep that the local intensities are less than an M3.6 in Oklahoma, but the frequencies are low so it could trigger landslides.

There have been a few here now.  I could barely see it on the local seismometers.  It is said that these deep earthquakes may be due to rapid phase changes, and not classical friction.  As such, they have no bearing on the chances for a tsunami M9.

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