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Earthquake Hits Central Valley Sunday Morning: What We Know So Far

By CALWIRE Weather Desk — Sunday, September 27, 2026
By CALWIRE Weather Desk  |  PUBLISHED: Sunday, September 27, 2026
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Earthquake Resources

Two earthquakes struck California Sunday morning, and Central Valley residents are already flooding search engines trying to find out what just happened. The U.S. Geological Survey reports a magnitude 3.5 quake rattled the Central Valley, according to the Sacramento Bee. A second tremor hit the South Bay around the same time, per KRON4.

Related: Earthquake Today Near Alaska: Should California Be Worried? What We Know · Tokyo Earthquake Today: What California Should Know About the Japan M5.9 Kanto Quake

If you felt shaking this morning, you're not imagining it. Early reports confirm two separate quakes hit the state Sunday, though full details on exact timing, depth, and epicenters are still coming in. This story is developing and specifics may change.

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No injuries or damage have been reported in the early-breaking coverage, but that picture could shift quickly as more information surfaces. Seismologists are tracking the activity, per the Sacramento Bee.

What We Know

The Central Valley quake clocked in at magnitude 3.5, according to USGS seismologists. A 3.5 is generally felt by people nearby but rarely causes structural damage. The South Bay also saw shaking Sunday morning, though the magnitude of that second quake hasn't been confirmed in available reports.

See also: Peru Earthquake 6.7 Magnitude Shakes Southern Andes: What California Should Know · Sorrento Valley Fire in San Diego: What We Know Right Now

What We Don't Know Yet

Exact epicenter locations, depth readings, and whether any aftershocks have followed are not yet confirmed in early reports. It's also unclear if the two quakes are connected or are separate, unrelated events.

What to Do Right Now

If you're in the Central Valley and felt shaking, check your home for any gas leaks or visible structural damage. You can report what you felt directly to the USGS at earthquake.usgs.gov. Stay with CALWIRE for updates as this story develops.

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Filed Under: Weather Earthquake Hits Central Valley