2.6
Earthquake Details: 12 km SW of Ridgemark, California, United States
Oct 28, 2026, 23:29:42
- Depth
- 9.15 km
- Felt reports
- 0
Source: USGSUpdated: Oct 29, 2026, 12:54 AM UTC
A magnitude 2.6 earthquake occurred on Oct 28, 2026 at 23:29:42. Epicenter: 12 km SW of Ridgemark, California, United States. Reported depth: 9.15 km.
Tsunami information
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Time & depth
- Local time
- Oct 28, 2026, 16:29:42 PDT
- UTC
- Oct 28, 2026, 23:29:42 UTC
9.15 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
M2.54 km SE of Aromas, CABeforeM2.326 km NNE of Montecito, CABeforeM2.122 km NNE of San Lucas, CABeforeM2.614 km E of Seven Trees, CABeforeM2.110 km N of Lake Pillsbury, CABeforeM4.010 km N of Lake Pillsbury, CABeforeM2.29 km N of Lake Pillsbury, CABeforeM2.72 km NE of Pacifica, CAAfterM2.65 km WNW of Madera, CAAfterM2.712 km SW of Ridgemark, CAAfterM2.23 km S of East Shore, CAAfterM2.117 km SE of Pinnacles, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 2.62
nc75459162
- Depth:
- 9.15 km
- Time:
- Updated:
- Oct 29, 2026, 12:54 AM UTC
Technical Details
Depth9.15 km
Significance106
Latitude36.7452
Longitude-121.4687
Event IDnc75459162
Magnitude2.6
Updated:Oct 29, 2026, 00:54:36 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 29, 2026, 00:54 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under 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.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).