Note: Map shows the area with a shake intensity of 3 or greater, which U.S.G.S. defines as “weak,” though the earthquake may be felt outside the areas shown. Source: U.S.G.S. The New York Times
A light, 4.7-magnitude earthquake struck in Northern California on Wednesday, according to the United States Geological Survey.
The temblor happened at 6:34 p.m. Pacific time about 2 miles northwest of Cobb, Calif., or about 70 miles north of San Francisco, data from the agency shows.
As seismologists review available data, they may revise the earthquake’s reported magnitude. Additional information collected about the earthquake may also prompt U.S.G.S. scientists to update the shake-severity map.
Quakes and aftershocks within 100 miles
Source: United States Geological Survey The New York Times
Aftershocks can occur days, weeks or even years after the first earthquake. These events can be of equal or larger magnitude to the initial earthquake, and they can continue to affect already damaged locations.
Source: United States Geological Survey | Notes: Shaking categories are based on the Modified Mercalli Intensity scale. When aftershock data is available, the corresponding maps and charts include earthquakes within 100 miles and seven days of the initial quake. All times above are Pacific time. Shake data is as of Wednesday, Jan. 1 at 9:44 p.m. Eastern. Aftershocks data is as of Saturday, Jan. 4 at 1:34 p.m. Eastern.
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