1.7
Earthquake Details: 1 km SW of San Ramon, California, United States
Oct 19, 2026, 02:35:44
- Depth
- 8.68 km
- Felt reports
- No data
Source: USGSUpdated: Oct 19, 2026, 03:12 AM UTC
A magnitude 1.7 earthquake occurred on Oct 19, 2026 at 02:35:44. Epicenter: 1 km SW of San Ramon, California, United States. Reported depth: 8.68 km.
Tsunami information
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Time & depth
- Local time
- Oct 18, 2026, 19:35:44 PDT
- UTC
- Oct 19, 2026, 02:35:44 UTC
8.68 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
M3.38 km NE of Gazelle, CABeforeM2.819 km SW of Toms Place, CABeforeM2.919 km SW of Toms Place, CABeforeM3.025 km SSW of Mina, NevadaBeforeM2.618 km WSW of Petrolia, CABeforeM2.55 km WSW of Burning Man Earth, NevadaAfterM3.180 km WNW of Ferndale, CAAfterM2.839 km SSW of Qualeys Camp, NVAfterM2.732 km SE of Bodie, CAAfterM3.139 km SSW of Likely, CAAfterM3.314 km SE of Petrolia, CAAfterM3.223 km WSW of Gustine, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 1.71
nc75451991
- Depth:
- 8.68 km
- Time:
- Updated:
- Oct 19, 2026, 03:12 AM UTC
Technical Details
Depth8.68 km
Significance45
Latitude37.7752
Longitude-121.9830
Event IDnc75451991
Magnitude1.7
Updated:Oct 19, 2026, 03:12:20 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 19, 2026, 03:12 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.