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09-29-2016, 05:00 AM
This appears to be on a spreading ridge where the right lateral San Andreas transform fault converts to the East Pacific Rise. There are geothermal features in this area, include geothermal power plants.
On one hand it is concerning that this is the south end of the southern segment of the San Andreas, which has not ruptured in recorded history and appears to be waaaaay overdue based on paleoseismology.
On the other hand, it may be typical for this area if it is in fact spreading related. The moment tensors of the three 4+ events are consistent with spreading.
I'm inclining towards the later and not worrying too much.
Brian
On one hand it is concerning that this is the south end of the southern segment of the San Andreas, which has not ruptured in recorded history and appears to be waaaaay overdue based on paleoseismology.
On the other hand, it may be typical for this area if it is in fact spreading related. The moment tensors of the three 4+ events are consistent with spreading.
I'm inclining towards the later and not worrying too much.
Brian