Is a flurry of small earthquakes a warning sign?

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San Gabriel Mountains over Inland Empire, CA. Photo credit: Don Graham (CC BY-SA 2.0)

Hundreds of small earthquakes have hit the Inland Empire in the past two weeks, and seismologists are trying to figure out what that so-called earthquake swarm could tell us.



  • Lucy Jones - seismologist and author of “The Big Ones: How Natural Disasters Have Shaped Us (and What We Can Do About Them)” - @DrLucyJones