Right now, I have been feeling some moderate earthquakes in my area, along the southern part of the San Andreas Fault. This is indeed confirmed by the USGS site for Southern California. If this small swarm ramps up into 4 mag plus events, it could well be a possible indicator of a larger event, although scientifically, that cannot be proven.
I only hope to encourage people to stock up on water and canned food, and a means to access those cans.
Here's a USGS link to the series of EQ events: