My my, our little Kimmy has learned to use some big words of tectonic mechanics! Just look how far he's come; we're all so darned proud of him :-P
It was a good day for >3.0 quakes ... but no "San Andreas" event (funniest movie of the year, I laughed ALL the way through it, just SO stupid!). My only concern is that the rain soaked surface soils may slip more than usual, the standard mixed blessing.
Earthquake Report: Cape Mendocino!
We just had a pair of earthquakes near the town of Petrolia (first oil well in CA drilled here, ergo the name). The first one I did not feel, but I did feel the quick jolt of the second one.
I will update this later, but for now, here is a map that shows the epicenter for these two earthquakes. I include the focal mechanism for the M 4.2 earthquake. The 3.3 was initially a 3.1 and the 4.2 was initially a 4.3. Interesting that we have had a number of earthquakes in this region, that have strike-slip senses of motion, probably associated with the Mendocino fault. If we get a moment tensor, it might show that this is also a strike-slip earthquake. We will just need to wait and see. Sometimes focal mechanisms and moment tensors show different types of earthquake motions.
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