prepare report of an earthquake that has occurred in any part of the world
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RIDGECREST EARTHQUAKE
California earthquake: 7.1 quake shakes Southern California 1 day after magnitude 6.4
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7.1 earthquake rattles SoCal 1 day after magnitude 6.4
LOS ANGELES -- A powerful 7.1 earthquake shook Southern California, cracking buildings, breaking roads and causing power outages on Friday, just one day after a magnitude 6.4 hit the same general area -- while seismologists warned that large aftershocks were expected to continue for days, if not weeks.
The quake, centered 11 miles from Ridgecrest area, struck at 8:19 p.m. and was originally listed as a 7.1, was downgraded shortly after and then upgraded back to a 7.1. Friday's earthquake was about 10 seconds longer than the quake on the Fourth of July in Searles Valley.
Friday's temblor is the largest Southern California quake in at least 20 years and was followed by a series of large and small aftershocks, including a handful above magnitude 5.0.
Seismologists said on Saturday that they had measured at least 2,600 aftershocks of magnitude 3.0 and greater. And by the time they finish analyzing all the data, they'll expect to catalog 30,000 of 1.0 magnitude or greater.
Caltech seismologist Egill Hauksson said the likelihood of another earthquake in the area of 7.0 or greater is now 3%, down from the 6% probability estimated on Friday.
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