Location of La Habra, CA quake and aftershocks is cause for concern, seismologists say

(NBC LA) -- Seismologists are trying to figure out what Friday's 5.1-magnitude earthquake means for Southern California's seismic future. The location of the La Habra quake and aftershocks, seismologists say, is a cause for concern. Kate Larsen reports from Pasadena for the NBC4 News at 11 on Sunday, March 30, 2014.

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