A magnitude 3.8 earthquake struck eastern Ventura County on Tuesday evening, sending light to moderate shaking across parts of Ventura and Los Angeles counties, according to the U.S. Geological Survey.
Earthquake Epicenter Near Piru and Depth Details
The tremor occurred at 8 p.m. local time on Tuesday, centered approximately 2.5 miles from the community of Piru, according to the U.S. Geological Survey. Seismological data shows the earthquake originated at a depth of 6.6 miles.
According to the coordinates of the epicenter, the seismic disturbance was located roughly five miles away from Simi Valley, seven miles from Moorpark and Fillmore, and eight miles distant from Castaic and Stevenson Ranch.
Shaking Intensity and Regional Impact
Residents across a wide swath of Southern California felt the ground move during the Tuesday evening event. The U.S. Geological Survey recorded weak to light shaking on the Modified Mercalli Intensity scale.
Data provided to federal monitors showed that the shaking reached as far east as Palmdale, as far west as Santa Barbara, and as far south as Inglewood. The automated monitoring system Quakebot generated the initial incident report, which was subsequently reviewed by an editor at the Los Angeles Times before publication.
Public Reporting and Monitoring Systems
Federal officials rely on public submissions to map the geographic reach of seismic events. The U.S. Geological Survey encourages anyone who felt the Tuesday evening tremor to log their experiences directly on the agency’s website.
Automated platforms like Quakebot handle the initial detection and cataloging of regional temblors. Human editors review these computer-generated posts to ensure accuracy before news outlets release the information to the public.
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