1.9
Earthquake Details: 13 km SE of Hidden Valley Lake, CA
Aug 28, 2026, 16:44:55
A magnitude 1.9 earthquake occurred near 13 km SE of Hidden Valley Lake, CA on Aug 28, 2026 at 16:44:55. The seismic event was recorded at a depth of 1.12 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth1.12 km
Significance57
Latitude38.7418
Longitude-122.4333
Event IDnc75426377
Magnitude1.9
Updated:Aug 28, 2026, 19:07:23 UTC
External Resources
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Time & depth
- Local time
- Aug 28, 2026, 09:44:55 PDT
- UTC
- Aug 28, 2026, 16:44:55 UTC
1.12 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M2.6143 km W of Ferndale, CaliforniaBeforeM2.76 km NNW of Redwood Valley, CABeforeM2.722 km SE of Yosemite Valley, CABeforeM2.756 km W of Petrolia, CAAfterM4.8136 km W of Ferndale, CaliforniaAfterM4.785 km W of Petrolia, CAAfterM2.8209 km W of Ferndale, CaliforniaAfterM2.9250 km W of Ferndale, CaliforniaAfterM2.6264 km W of Ferndale, CaliforniaAfterM2.977 km W of Petrolia, CAAfterM4.4184 km W of Ferndale, CaliforniaAfterM2.9233 km W of Ferndale, 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: Aug 28, 2026, 19:07 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.