1.7
Earthquake Details: 22 km NE of San Ardo, California, United States
Oct 20, 2026, 03:52:53
- Depth
- -0.45 km
- Felt reports
- No data
Source: USGSUpdated: Oct 20, 2026, 03:54 AM UTC
A magnitude 1.7 earthquake occurred on Oct 20, 2026 at 03:52:53. Epicenter: 22 km NE of San Ardo, California, United States. Reported depth: -0.45 km.
Tsunami information
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Time & depth
- Local time
- Oct 19, 2026, 20:52:53 PDT
- UTC
- Oct 20, 2026, 03:52:53 UTC
-0.45 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
M3.025 km SSW of Mina, NevadaBeforeM2.44 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, NVAfterM2.732 km SE of Bodie, CAAfterM2.413 km WSW of Kelseyville, CAAfterM2.52 km NW of The Geysers, CAAfterM2.411 km NE of Kernville, CAAfterM2.5central CaliforniaAfterM3.223 km WSW of Gustine, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 1.72
nc75452366
- Depth:
- -0.45 km
- Time:
- Updated:
- Oct 20, 2026, 03:54 AM UTC
Technical Details
Depth-0.45 km
Significance46
Latitude36.1743
Longitude-120.7500
Event IDnc75452366
Magnitude1.7
Updated:Oct 20, 2026, 03:54:28 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 20, 2026, 03:54 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.