3.4
Earthquake Details: 32 km W of Petrolia, California, United States
Oct 12, 2026, 11:45:41
- Depth
- 0.28 km
- Felt reports
- 1
Source: USGSUpdated: Oct 12, 2026, 03:01 PM UTC
A magnitude 3.4 earthquake occurred on Oct 12, 2026 at 11:45:41. Epicenter: 32 km W of Petrolia, California, United States. Reported depth: 0.28 km.
Tsunami information
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Time & depth
- Local time
- Oct 12, 2026, 03:45:41 GMT-8
- UTC
- Oct 12, 2026, 11:45:41 UTC
0.28 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby major cities
Nearby earthquakes · 12
M2.410 km N of Greenhorn, CABeforeM3.414 km N of Brooktrails, CABeforeM2.320 km WSW of Petrolia, CABeforeM2.11 km WSW of Angwin, CABeforeM1.79 km N of Hollister, CABeforeM1.91 km NE of Woodside, CABeforeM2.213 km SE of Petrolia, CABeforeM2.726 km W of Petrolia, CABeforeM2.526 km WSW of Petrolia, CAAfterM2.612 km W of Burning Man Earth, NevadaAfterM2.01 km N of The Geysers, CAAfterM3.429 km W of Petrolia, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 3.41
nc75448261
- Depth:
- 0.28 km
- Time:
- Updated:
- Oct 12, 2026, 03:01 PM UTC
Technical Details
Depth0.28 km
Significance179
Latitude40.2903
Longitude-124.6563
Event IDnc75448261
Magnitude3.4
Updated:Oct 12, 2026, 15:01:51 UTC
Regional Seismicity
External Resources
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Oct 12, 2026, 15:01 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.