A magnitude 3.9 earthquake struck 10 km (6.2 miles) northwest of Malibu, California, early on March 17, 2025, at 03:17:21 UTC (7:17 AM local time). The United States Geological Survey (USGS) reported the quake's epicenter at 34.067°N, 118.895°W, with a depth of 14.4 km (8.9 miles).
Impact and Affected Areas
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The tremor was felt in Thousand Oaks, Malibu, and surrounding areas.
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Reports indicate a light shaking intensity (IV on the Modified Mercalli Intensity Scale).
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No significant damage or injuries have been reported so far.
ShakeMap & Felt Reports
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The Community Internet Intensity Map (DYFI) received over 2,676 responses, confirming that the quake was widely felt across Southern California.
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The ShakeMap estimates intensity at IV (light shaking), meaning the quake was noticeable but not strong enough to cause structural damage.
Seismic Context
Southern California is one of the most seismically active regions in the United States. This earthquake occurred within the California Integrated Seismic Network (CISN) monitoring area, which is a collaboration between Caltech, USGS Pasadena, and other partners.
Authorities and seismologists continue to monitor the area for possible aftershocks, though none have been reported as of now. Residents are encouraged to review earthquake preparedness plans and stay informed through the USGS Earthquake Hazards Program.