Magnitude 4.3 Earthquake Shakes Bay Area, Centered Near Berkeley
Berkeley, California — A magnitude 4.3 earthquake rattled the Bay Area just before 3 a.m. on Monday, September 22, 2025, according to the U.S. Geological Survey (USGS). The quake’s epicenter was located less than two miles east of Berkeley, close to the well-known Hayward Fault line.
The tremor was strong enough to trigger phone alerts, waking up residents across San Francisco, Oakland, and San Jose. Many reported feeling brief but noticeable shaking overnight.
No Damage or Injuries Reported
The San Francisco Fire Department confirmed through social media that there were no immediate reports of structural damage or injuries linked to the earthquake.
No Tsunami Risk
According to the U.S. National Tsunami Warning Center, the earthquake does not pose a tsunami threat to the West Coast.
Tsunami Info Stmt: M4.3 010mi NE San Francisco, California 0256PDT Sep 22: Tsunami NOT expected
— NWS Tsunami Alerts (@NWS_NTWC) September 22, 2025
Aftershocks Possible
The USGS added that small aftershocks could occur in the coming hours or days, though they are not expected to cause significant impact. Seismologists continue to monitor the Hayward Fault, one of the Bay Area’s most at-risk seismic zones.
This latest quake serves as a reminder for Bay Area residents to review earthquake safety plans and remain prepared for future seismic activity.
Source: USA Today
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