{"id":2583,"date":"2015-06-01T09:56:15","date_gmt":"2015-06-01T17:56:15","guid":{"rendered":"http:\/\/earthjay.com\/?p=2583"},"modified":"2015-06-01T09:56:15","modified_gmt":"2015-06-01T17:56:15","slug":"blanco-fracture-zone-earthquakes","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=2583","title":{"rendered":"Blanco Fracture Zone Earthquakes!"},"content":{"rendered":"

This morning we had three earthquakes related to the Blanco fracture zone, a transform (shear) plate boundary. These earthquakes occurred quite a bit north of the bathymetric expression of the BFZ (though the M 5.8 is actually plotting closer to the BFZ this morning), similar to the seismicity earlier this year to the southeast of today’s swarm. Here is a post regarding the seismicity along the BFZ in April 2015<\/a>.
\nHere is a map showing these earthquakes, with moment tensors plotted for the M 5.8<\/a> and M 5.5<\/a> earthquakes. I include an inset map showing the plate configuration based upon the Nelson et al. (2004) and Chaytor et al. (2004) papers (I modified it). I also include a cross section of the subduction zone, as it is configured in-between earthquakes (interseismic) and during earthquakes (coseismic), modified from Plafker (1972).
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\nHere is a version of the CSZ map alone (Chaytor et al., 2004; Nelson et al., 2004).
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\nHere is a version of the CSZ cross section alone (Plafker, 1972).
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\nHere is a map showing the BFZ seismicity from April 2015.
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