1.8
Earthquake Details: 8 km E of Vallejo, CA
Aug 31, 2026, 18:06:36
A magnitude 1.8 earthquake occurred near 8 km E of Vallejo, CA on Aug 31, 2026 at 18:06:36. The seismic event was recorded at a depth of 4.61 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth4.61 km
Significance52
Latitude38.1265
Longitude-122.1477
Event IDnc75427812
Magnitude1.8
Updated:Aug 31, 2026, 19:17:24 UTC
External Resources
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Time & depth
- Local time
- Aug 31, 2026, 11:06:36 PDT
- UTC
- Aug 31, 2026, 18:06:36 UTC
4.61 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M2.617 km SSW of Beatty, NevadaBeforeM2.756 km W of Petrolia, CABeforeM2.666 km W of Petrolia, CABeforeM4.8136 km W of Ferndale, CaliforniaBeforeM4.785 km W of Petrolia, CABeforeM2.8209 km W of Ferndale, CaliforniaBeforeM2.977 km W of Petrolia, CABeforeM2.33 km NNE of Graton, CABeforeM2.12 km SE of Pacifica, CABeforeM2.28 km SE of Soda Bay, CABeforeM2.419 km SW of Toms Place, CABeforeM4.4184 km W of Ferndale, CaliforniaBefore
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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: Aug 31, 2026, 19:17 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.