4.7
Earthquake Details: 97 km W of Petrolia, California
Sep 29, 2026, 11:36:39
A magnitude 4.7 earthquake occurred near 97 km W of Petrolia, California on Sep 29, 2026 at 11:36:39. The seismic event was recorded at a depth of 10 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth10 km
Significance349
Latitude40.4225
Longitude-125.4183
Event IDnc75444322
Magnitude4.7
Updated:Sep 29, 2026, 17:46:42 UTC
External Resources
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Time & depth
- Local time
- Sep 29, 2026, 04:36:39 PDT
- UTC
- Sep 29, 2026, 11:36:39 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 8
M3.327 km WSW of Westley, CaliforniaBeforeM2.626 km WSW of Westley, CaliforniaBeforeM2.69 km NW of Redwood Valley, CaliforniaBeforeM2.7199 km W of Gold Beach, OregonBeforeM2.5off the coast of OregonBeforeM3.2275 km W of Indianola, CaliforniaBeforeM4.5156 km W of Ferndale, CaliforniaBeforeM2.66 km W of Yountville, CaliforniaAfter
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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: Sep 29, 2026, 17:46 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.