I may be remembering wrong, but I think this quake is having a lot more m2.5+ aftershocks than did the M5.6(?) quake north (east) of San Jose a few months ago. The San Jose quake had a couple of 3.1s a week or so ago. There is probably a completely different crustal structure for the northernmost Baja quake: high hear flow, in some of the pull aparts it is almost ocean spreading swamped by sediments. Maybe fluids move around differently in a trasntensional area. I took seismotectonics with Rick Sibson a couple decades ago, and he proposed (and probably published)that quake ruptures are more easily stopped at what he calls dilational jogs (same as releasing double bends, John Crowell)....because the faults suck there..the fluid resists the rupture...then....lots of aftershocks in that area.

I wonder if paying real close attention to quakes in the Salton Trough and points south is important to being able to indentify triggers for the southern San Andreas fault: remember the M6.2 left-lateral Elmore Ranch quake triggered the M6.6 right-lateral Superstition Hills quake in 1987: about 12 hours between them.
Chris