A swarm of small earthquakes have hit San Bernardino and Riverside counties these last three weeks. For people the mixture of reactions was there, some if they didn’t feel the shake the don’t care about it, to others it was a sign that the “Big One” is coming. Is this a sign that a bigger earthquake is coming? Andrea Llenos, U.S. Geological Survey research geophysicist said, “I would redefine normal as: You should still be prepared for a large earthquake.”

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https://www.latimes.com/local/lanow/la-me-ln-earthquake-swarm-small-20190619-story.html