2.1
Earthquake Details: 8 km SW of Atascadero, California, United States
Oct 21, 2026, 13:08:38
- Depth
- 6.56 km
- Felt reports
- 3
Source: USGSUpdated: Oct 21, 2026, 03:42 PM UTC
A magnitude 2.1 earthquake occurred on Oct 21, 2026 at 13:08:38. Epicenter: 8 km SW of Atascadero, California, United States. Reported depth: 6.56 km.
Tsunami information
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Time & depth
- Local time
- Oct 21, 2026, 06:08:38 PDT
- UTC
- Oct 21, 2026, 13:08:38 UTC
6.56 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
M2.44 km NNW of Hollister, CABeforeM2.42 km SSW of San Ramon, CABeforeM2.51 km E of Loma Linda, CABeforeM2.44 km SE of San Ramon, CABeforeM2.839 km SSW of Qualeys Camp, NVBeforeM2.732 km SE of Bodie, CABeforeM2.413 km WSW of Kelseyville, CABeforeM2.52 km NW of The Geysers, CABeforeM2.411 km NE of Kernville, CAAfterM2.5central CaliforniaAfterM3.223 km WSW of Gustine, CAAfterM3.0central CaliforniaAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 2.15
nc75452866
- Depth:
- 6.56 km
- Time:
- Updated:
- Oct 21, 2026, 03:42 PM UTC
Technical Details
Depth6.56 km
Significance72
Latitude35.4377
Longitude-120.7240
Event IDnc75452866
Magnitude2.1
Updated:Oct 21, 2026, 15:42:33 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 21, 2026, 15:42 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).