2.6
Earthquake Details: 3 km SE of Concord, California, United States
8/17/2026, 8:18:41 AM
A magnitude 2.6 earthquake occurred near 3 km SE of Concord, California, United States on 8/17/2026 at 8:18:41 AM. The seismic event was recorded at a depth of 14.63 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth14.63 km
Significance109
Latitude37.9487
Longitude-121.9962
Event IDnc75419932
Magnitude2.6
Updated:8/18/2026, 7:42:33 AM
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- 8/17/2026, 1:18:41 AM PDT
- UTC
- 8/17/2026, 8:18:41 AM UTC
14.63 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M2.74 km S of Petrolia, California, United StatesBeforeM3.419 km SW of Toms Place, California, United StatesBeforeM2.67 km SW of Atascadero, California, United StatesBeforeM2.810 km ENE of Coso Junction, California, United StatesBeforeM2.655 km W of Ferndale, California, United StatesBeforeM2.712 km S of Lompoc, California, United StatesAfterM2.512 km SSW of Lompoc, California, United StatesAfterM3.249 km W of Petrolia, California, United StatesAfterM2.57 km NW of Avenal, California, United StatesAfterM2.760 km W of Petrolia, California, United StatesAfterM2.875 km ENE of Tonopah, Nevada, United StatesAfterM2.628 km WNW of Weaverville, California, United StatesAfter
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 18, 2026, 07:42 AM 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.