A minor magnitude 4.0 earthquake struck Northern California on Wednesday, according to the United States Geological Survey.
The quake occurred about 5 miles east of Gilroy, Calif., at 6:16 a.m. Pacific time, agency data shows. A few minutes later, several aftershocks, including a magnitude 3.6 earthquake, occurred nearby.
USGS data previously reported the initial quake had a magnitude of 4.2.
As seismologists review available data, they may revise the reported intensity of an earthquake. Additional information collected about earthquakes may also lead USGS scientists to update the earthquake-severity map.
Aftershocks in the area
An aftershock is usually a smaller earthquake that occurs after a larger earthquake in the same general area. Aftershocks are usually minor adjustments to the part of a fault that moved during the initial earthquake.
Earthquakes and tremors within 100 miles
Aftershocks after the first earthquake may occur for days, weeks, or even years. These events may be of equal or greater magnitude than the initial earthquake, and they may continue to affect already damaged locations.
When earthquakes and tremors occurred
Source: United States Geological Survey | Notes: The aftershock categories are based on the modified Mercalli intensity scale. When aftershock data is available, related maps and charts include earthquakes within 100 miles and seven days of the initial earthquake. All times above are Pacific Time. Shake data as of Wednesday, November 26 at 9:37 AM Eastern. Aftershock data is as of Wednesday, November 26 at 9:46 AM Eastern.
Map: Daylight (urban area); maplibre (map rendering); Natural earth (roads, labels, terrain); Protomaps (map tiles)
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