1.7
Earthquake Details: 4 km SW of Brentwood, California
Sep 5, 2026, 04:35:31
A magnitude 1.7 earthquake occurred near 4 km SW of Brentwood, California on Sep 5, 2026 at 04:35:31. The seismic event was recorded at a depth of 14.4 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth14.4 km
Significance47
Latitude37.9012
Longitude-121.7488
Event IDnc75430032
Magnitude1.7
Updated:Sep 5, 2026, 05:27:22 UTC
External Resources
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Time & depth
- Local time
- Sep 4, 2026, 21:35:31 PDT
- UTC
- Sep 5, 2026, 04:35:31 UTC
14.4 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.04 km WSW of Hamilton city, CaliforniaBeforeM2.04 km SSE of Cloverdale, CaliforniaBeforeM2.22 km N of Lone Pine, CaliforniaBeforeM2.5NevadaBeforeM2.815 km SE of Petrolia, CaliforniaBeforeM3.33 km ESE of Larkfield-Wikiup, CaliforniaBeforeM1.925 km SSW of Solvang, CaliforniaBeforeM2.44 km ENE of Pinnacles, CaliforniaBeforeM2.024 km NNW of Tehachapi, CaliforniaBeforeM2.32 km N of The Geysers, CaliforniaBeforeM2.49 km NW of Honey Lake, CaliforniaBeforeM2.27 km SW of Gilroy, 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 5, 2026, 05:27 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.