Latest Earthquakes Spark Questions about Early Warning System

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RIDGECREST, CALIFORNIA - JULY 06: An onlooker views newly ruptured ground after a 7.1 magnitude earthquake struck in the area on July 6, 2019 near Ridgecrest, California. The earthquake, which occurred July 5th, was the second large earthquake to hit the area in two days and the largest in Southern California in 20 years. (Mario Tama/Getty Images)

Seismologist Dr. Lucy Jones joins us for the latest on the earthquakes that hit Southern California. We'll also discuss the helpfulness of the earthquake early warning systems.


Dr. Lucy Jones, research associate, the Seismological Laboratory of Caltech; author, "The Big Ones: How Natural Disasters Have Shaped Us (and What We Can Do About Them)"

Michael Cabanatuan, staff writer, San Francisco Chronicle