Don pointed this area out first. It's right on the SAF near Palmdale.
34.450N,118.035W
There has been activity there for the last couple months. I think this is at the southern end of the 1857 Cholame quake. If I remember right, there is also trenching evidence of ruptures near Wrightwood that are consistent with evidence found in the Coachella segment. That would be a big one.