M5.5 Salton Sea quake rattles southwest Arizona

A magnitude 5.5 earthquake struck the Salton Sea area of southern California just before 2pm local time today, and was felt from Yuma to Bullhead City.  There is a continuing swarm of aftershocks with the largest so far apparently a M4.8.

A magnitude 5.3 event hit at 12:32 pm today in the same area - a foreshock?













[Map credits, USGS]