According to reports, Japan's early warning system alerted some 50-million people before the Fukushima earthquake in 2011. The country has more than 4,200 sensors. California has about a third of that and is larger than Japan by about 20,000 square
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
A magnitude 4.7 earthquake struck deep beneath a mountain range in Southern California on Monday, jangling the nerves of tennis stars competing in the nearby desert town of Indian Wells.
A magnitude 4.7 earthquake struck deep beneath a mountain range in Southern California on Monday, jangling the nerves of tennis stars competing in the nearby desert town of Indian Wells.
LOS ANGELES -- In the seismic annals of California, Monday's 4.7 earthquake was little more than a footnote. It gave Southern California a small morning jolt but caused no damage and was largely shrugged off by noon.
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