Overview
- The U.S. Geological Survey recorded a magnitude 4.2 quake just after 3:30 a.m. Sunday about 1 to 1.2 miles east‑southeast of Frazier Park at a depth of roughly 8 miles.
- The USGS activated its ShakeAlert system, which sends automated, short-notice warnings to people and systems when seismic activity is detected.
- Residents across Kern, Ventura and Los Angeles counties reported light to weak shaking, with hundreds of people saying they felt the tremor in communities from Frazier Park to parts of the Los Angeles basin.
- Initial local and agency reports show no injuries or structural damage and authorities are continuing to monitor the area for any aftershocks or new information.
- Small-to-moderate quakes are common in Southern California and a magnitude 4.2 typically causes only light shaking; officials and outlets urged residents to check emergency kits and review basic earthquake safety steps.