Note: The map shows areas with a magnitude of 3 or higher, which the USGS defines as “weak,” but the quake may be felt outside the areas shown. The New York Times
A mild magnitude 4.4 earthquake struck Southern California on Monday, according to the U.S. Geological Survey.
The quake struck at 12:20 p.m. Pacific time, about two miles southeast of Highland Park, California, according to data from the National Weather Service.
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As seismologists review the available data, the reported magnitude of an earthquake may be revised. Additional information collected about an earthquake may also cause USGS scientists to update earthquake intensity maps.
Aftershocks in this region
Aftershocks are smaller earthquakes that occur after a larger earthquake, usually in the same area. Aftershocks are usually small movements along the part of a fault that shifted during the initial earthquake.
Earthquakes and aftershocks within 100 miles
Aftershocks can occur days, weeks, or even years after the initial earthquake. They can be as powerful or stronger than the initial earthquake and continue to affect areas that have already been affected.
Source: U.S. Geological Survey | Notes: Shake categories are based on the Modified Mercalli Intensity Scale. Where aftershock data is available, corresponding maps and graphs include earthquakes within 100 miles and 7 days of the initial earthquake. All times above are Pacific Time. Shake data is as of Monday, August 12, 12:25 PM PT. Aftershock data is as of Monday, August 12, 9:20 PM PT.