2.1
Earthquake Details: 15 km W of Ukiah, CA
Sep 1, 2026, 17:01:24
A magnitude 2.1 earthquake occurred near 15 km W of Ukiah, CA on Sep 1, 2026 at 17:01:24. The seismic event was recorded at a depth of 3.96 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth3.96 km
Significance67
Latitude39.1470
Longitude-123.3777
Event IDnc75428292
Magnitude2.1
Updated:Sep 1, 2026, 18:07:23 UTC
External Resources
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Time & depth
- Local time
- Sep 1, 2026, 10:01:24 PDT
- UTC
- Sep 1, 2026, 17:01:24 UTC
3.96 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M2.977 km W of Petrolia, CABeforeM2.33 km NNE of Graton, CABeforeM2.16 km NW of The Geysers, CABeforeM2.12 km SE of Pacifica, CABeforeM2.28 km SE of Soda Bay, CABeforeM2.419 km SW of Toms Place, CABeforeM2.021 km W of New Idria, CABeforeM4.4184 km W of Ferndale, CaliforniaBeforeM2.9233 km W of Ferndale, CaliforniaBeforeM2.34 km E of Challenge-Brownsville, CABeforeM2.62 km N of Middletown, CAAfterM3.04 km WSW of Hamilton City, CAAfter
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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 1, 2026, 18:07 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.