Sunday, October 12, 2008

Unusual World Seismicity Continues

The standard question to seismologists is: "Are there a lot more earthquakes now, than before?" The standard answer is: "No, you're dreaming." But this time, I am beginning to think there are a lot more earthquakes in a certain part of the world.

The 2004 giant slip produced a big dimple in the earth. This stress change has to work itself out. Since the crust is non-linear with big faults, there is a 'diffusion' of strain changes. This diffusion can go out much farther than one would think.

The big 'hit' would be thrust earthquakes in a north-south direction, north of the big earthquake. I've outlined this in red.

No comments: