3.9
Earthquake Details: 3 km from San Leandro, California, United States
8/13/2026, 3:30:04 PM
A magnitude 3.9 earthquake occurred near 3 km from San Leandro, California, United States on 8/13/2026 at 3:30:04 PM. The seismic event was recorded at a depth of -5.5 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth-5.5 km
Significance
Latitude37.7552
Longitude-122.1502
Event IDemsc:20260813_0000205
Magnitude3.9
Updated:8/13/2026, 7:28:36 PM
External Resources
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Time & depth
- Local time
- 8/13/2026, 8:30:04 AM PDT
- UTC
- 8/13/2026, 3:30:04 PM UTC
-5.5 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M2.69 km SW of Valencia, California, United StatesBeforeM2.831 km NNW of Covelo, California, United StatesBeforeM3.83 km N of San Leandro, California, United StatesAfterM2.84 km N of San Leandro, California, United StatesAfterM2.74 km S of Petrolia, California, United StatesAfterM3.419 km SW of Toms Place, California, United StatesAfterM2.810 km ENE of Coso Junction, California, United StatesAfterM2.63 km SE of Concord, California, United StatesAfterM2.712 km S of Lompoc, California, United StatesAfterM3.249 km W of Petrolia, California, United StatesAfterM2.760 km W of Petrolia, California, United StatesAfterM2.875 km ENE of Tonopah, Nevada, 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 13, 2026, 07:28 PM 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.