2.7
Earthquake Details: 74 km W of Petrolia, California, United States
Oct 17, 2026, 21:28:59
- Depth
- 10 km
- Felt reports
- No data
Source: USGSUpdated: Oct 28, 2026, 01:12 AM UTC
A magnitude 2.7 earthquake occurred on Oct 17, 2026 at 21:28:59. Epicenter: 74 km W of Petrolia, California, United States. Reported depth: 10 km.
Status: Reviewed
Tsunami information
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Time & depth
- Local time
- Oct 17, 2026, 13:28:59 GMT-8
- UTC
- Oct 17, 2026, 21:28:59 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby major cities
Nearby earthquakes · 10
M1.71 km NW of Brookings, OregonAfterM1.94 km NE of Santa Rosa, CAAfterM1.76 km NW of The Geysers, CAAfterM1.52 km WSW of Campbell, CAAfterM2.316 km SSW of Ferndale, CAAfterM2.8193 km WSW of Pistol River, OregonAfterM2.06 km WNW of Cobb, CAAfterM1.753 km WSW of Petrolia, CAAfterM2.57 km W of Cobb, CAAfterM2.37 km W of Cobb, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSmd 2.69
nc75451191
- Depth:
- 10 km
- Status:
- Reviewed
- Time:
- Updated:
- Oct 28, 2026, 01:12 AM UTC
Technical Details
Depth10 km
Significance111
Latitude40.4215
Longitude-125.1457
Event IDnc75451191
Magnitude2.7
Updated:Oct 28, 2026, 01:12:21 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 28, 2026, 01:12 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).