3.3
Earthquake Details: 14 km SE of Petrolia, California, United States
Oct 22, 2026, 01:43:10
- Depth
- 10.99 km
- Felt reports
- 10
Source: USGSUpdated: Oct 22, 2026, 02:08 PM UTC
A magnitude 3.3 earthquake occurred on Oct 22, 2026 at 01:43:10. Epicenter: 14 km SE of Petrolia, California, United States. Reported depth: 10.99 km.
Tsunami information
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Time & depth
- Local time
- Oct 21, 2026, 18:43:10 PDT
- UTC
- Oct 22, 2026, 01:43:10 UTC
10.99 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
M2.42 km SSW of San Ramon, CABeforeM2.55 km WSW of Burning Man Earth, NevadaBeforeM2.44 km SE of San Ramon, CABeforeM3.180 km WNW of Ferndale, CABeforeM2.46 km N of Redwood Valley, CABeforeM2.413 km WSW of Kelseyville, CABeforeM2.52 km NW of The Geysers, CABeforeM3.139 km SSW of Likely, CABeforeM2.330 km NNW of Covelo, CABeforeM3.223 km WSW of Gustine, CAAfterM2.130 km WSW of Petrolia, CAAfterM2.42 km E of Aromas, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 3.25
nc75453186
- Depth:
- 10.99 km
- Time:
- Updated:
- Oct 22, 2026, 02:08 PM UTC
Technical Details
Depth10.99 km
Significance166
Latitude40.2345
Longitude-124.1708
Event IDnc75453186
Magnitude3.3
Updated:Oct 22, 2026, 14:08:13 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 22, 2026, 14:08 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under 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.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).