1.7
Earthquake Details: 15 km W of Petrolia, California, United States
Oct 27, 2026, 05:12:56
- Depth
- 18.9 km
- Felt reports
- No data
Source: USGSUpdated: Oct 27, 2026, 05:47 AM UTC
A magnitude 1.7 earthquake occurred on Oct 27, 2026 at 05:12:56. Epicenter: 15 km W of Petrolia, California, United States. Reported depth: 18.9 km.
Tsunami information
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Time & depth
- Local time
- Oct 26, 2026, 22:12:56 PDT
- UTC
- Oct 27, 2026, 05:12:56 UTC
18.9 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
M2.316 km SSW of Ferndale, CABeforeM2.8193 km WSW of Pistol River, OregonBeforeM2.57 km W of Cobb, CABeforeM2.37 km W of Cobb, CABeforeM3.9209 km WSW of Pistol River, OregonBeforeM2.317 km SE of Lake Pillsbury, CABeforeM2.27 km W of Cobb, CABeforeM2.151 km WSW of Port Orford, OregonBeforeM2.134 km W of Petrolia, CABeforeM2.18 km WNW of Cobb, CABeforeM2.54 km SE of Aromas, CABeforeM2.614 km E of Seven Trees, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 1.68
nc75455496
- Depth:
- 18.9 km
- Time:
- Updated:
- Oct 27, 2026, 05:47 AM UTC
Technical Details
Depth18.9 km
Significance43
Latitude40.3022
Longitude-124.4622
Event IDnc75455496
Magnitude1.7
Updated:Oct 27, 2026, 05:47:27 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 27, 2026, 05:47 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).