I was struck by the irony of April 18th - isn't it the 101st anniversary of the Great SF quake? However, I really am curious to see what you all think of it in terms of ground movement, etc., since there seems to be increased activity over the past few months there (NoCal) through Lassen area and Mammoth & even farther north. Do you think that it will continue throughout the summer? What's driving it? Could there be volcanic-driven (i.e., Mt St. Helen's/ Cascadia) reasons, especially since the Mexicali area has been popping as well? Really curious.
Thanks!
Beth

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