Two sets of earthquake swarms have hit California. What's going on along the Mexico border?
Los Angeles Times -

Another earthquake swarm has been rumbling along the California-Mexico border. More than two dozen quakes greater than magnitude 2.5 have occurred since just after midnight Saturday, with epicenters about 175 miles southeast of downtown Los Angeles and 100 miles northeast of San Diego, according to the U.S. Geological Survey. They have occurred largely along farmland between the towns of Brawley and Imperial in Imperial County. The largest quake was a magnitude 3.9 that struck at 4:05 p.m....

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