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L.A. Now Live: Monday's earthquake tested early warning system

March 14, 2013 |  7:20 am

Monday's earthquake in Riverside County offered scientists one of their first opportunities to match data from an earthquake early warning pilot program to what they could actually feel.

According to Caltech and U.S. Geological Survey seismologists, the test was a success. The Monday morning 4.7-magnitude temblor gave Caltech scientists a 30-second warning ahead of the shaking.

Though the quake didn't cause any damage, researchers say even a few seconds of notice can prove vital for shutting down utilities, slowing trains and giving people time to prepare.

Reporter Joseph Serna will join us at 9 a.m. to discuss how the pilot program works and how far away it is from being introduced to the public.

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