UPDATE: 6.4 quake shakes California; no immediate reports of injuries, damage
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A powerful earthquake of magnitude 6.4 struck Southern California near the city of Ridgecrest, about 113 miles (175 km) northeast of Los Angeles, the U.S. Geological Survey said on Thursday.
The USGS said the quake, initially reported as a magnitude 6.6, was very shallow - only 5.4 miles (8.7 km) - which would have amplified its effect.
There were no immediate reports of injuries or damage from the quake that struck around 1:30 pm EDT in an area on the edge of Death Valley National Park.
