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3w ago

Magnitude 4.3 Quake Near UC Berkeley Jolts Bay Area Before Dawn

USGS expects aftershocks but puts the odds of a larger quake this week at under one percent.

A magnitude 4.3 earthquake struck in Berkeley at 2:56 a.m. on Sept. 22, 2025.
Image
Image
The Hayward Fault.

Overview

  • The earthquake struck at 2:56 a.m. PDT with a revised magnitude of 4.3 at a depth of about 4.8 miles, centered a few blocks southeast of the UC Berkeley campus near Dwight Way and Piedmont Avenue.
  • ShakeAlert/MyShake delivered early warnings as more than 21,000 USGS Did You Feel It reports came in from across the region.
  • Officials reported no injuries or major structural damage, and the National Tsunami Warning Center said no tsunami was expected.
  • BART ran trains at reduced speeds during morning track inspections before returning service to normal operations.
  • A magnitude 2.6 aftershock was recorded later in the morning, and seismologists noted the event’s proximity to the Hayward–Rodgers Creek Fault.