I prepared a post on M5.9 the other day offshore southern Sumatra and it failed to post...this was a thrust with a NE-dipping low-angle nodal plane, consistent with the subduction zone. This is the dangerous area that has not failed in a century and a half...worth watching.
There was a 3.6 and 3.1 offshore San Diego. I have worked on faults in this area in the past. They do not have focal mechanisms posted...there are right-lateral, NW-SE faults there, and low-angle normal (separation) faults left over from Miocene (most active maybe 20-10 million years ago)...that have been reactivated as thrusts (1986 Oceanside earthquake)....but offshore San Diego in the area, there could be normal slip...because some of the strike-slip faults have a geometry where the blocks sliding by also diverge from each other: called "pull apart" or "releasing double bend"
Chris