1.6
Earthquake Details: 5 km SW of Ridgemark, California, United States
Oct 15, 2026, 02:06:00
- Depth
- 4.94 km
- Felt reports
- No data
Source: USGSUpdated: Oct 15, 2026, 02:07 AM UTC
A magnitude 1.6 earthquake occurred on Oct 15, 2026 at 02:06:00. Epicenter: 5 km SW of Ridgemark, California, United States. Reported depth: 4.94 km.
Tsunami information
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Time & depth
- Local time
- Oct 14, 2026, 19:06:00 PDT
- UTC
- Oct 15, 2026, 02:06:00 UTC
4.94 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby major cities
Nearby earthquakes · 12
M2.726 km W of Petrolia, CABeforeM3.432 km W of Petrolia, CABeforeM2.526 km WSW of Petrolia, CABeforeM2.613 km NNW of Gerlach, NevadaBeforeM3.429 km W of Petrolia, CABeforeM2.719 km WSW of Petrolia, CABeforeM2.715 km NE of Little Lake, CABeforeM2.628 km SSE of Lopez Point, CABeforeM2.45 km ESE of Sanger, CABeforeM3.023 km NE of Hydesville, CABeforeM3.012 km NE of Walker Lake, NevadaBeforeM3.17 km NW of The Geysers, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 1.59
nc75449576
- Depth:
- 4.94 km
- Time:
- Updated:
- Oct 15, 2026, 02:07 AM UTC
Technical Details
Depth4.94 km
Significance39
Latitude36.7847
Longitude-121.4072
Event IDnc75449576
Magnitude1.6
Updated:Oct 15, 2026, 02:07:37 UTC
Regional Seismicity
External Resources
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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: Oct 15, 2026, 02:07 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.