The U.S. Geological Survey said in a statement Monday that a swarm of small earthquakes in California was being closely monitored over concerns of a larger event on the San Andreas fault.
The roughly 20 earthquakes took place Monday morning under the southeastern part of the Salton Sea, according to the U.S. Geological Survey. The swarm began with a magnitude 3.2 earthquake before a number of magnitude 4 earthquakes struck. The largest earthquake was a magnitude 4.6 and took place near Bombay Beach, California.
“During this earthquake swarm, the probability of larger earthquakes in this region is significantly greater than usual,” the statement read.