1.6
Earthquake Details: 2 km WSW of Alamo, California, United States
Oct 18, 2026, 12:44:26
- Depth
- 9.13 km
- Felt reports
- No data
Source: USGSUpdated: Oct 18, 2026, 01:17 PM UTC
A magnitude 1.6 earthquake occurred on Oct 18, 2026 at 12:44:26. Epicenter: 2 km WSW of Alamo, California, United States. Reported depth: 9.13 km.
Tsunami information
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Time & depth
- Local time
- Oct 18, 2026, 05:44:26 PDT
- UTC
- Oct 18, 2026, 12:44:26 UTC
9.13 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
M3.013 km W of Petrolia, CABeforeM2.510 km ESE of Gilroy, CABeforeM2.38 km NE of Mendocino, CABeforeM3.38 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, CABeforeM2.419 km SW of Toms Place, CABeforeM2.421 km ESE of Silver Springs, NevadaAfterM2.44 km NNW of Hollister, CAAfterM2.42 km SSW of San Ramon, CAAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 1.64
nc75451556
- Depth:
- 9.13 km
- Time:
- Updated:
- Oct 18, 2026, 01:17 PM UTC
Technical Details
Depth9.13 km
Significance41
Latitude37.8435
Longitude-122.0507
Event IDnc75451556
Magnitude1.6
Updated:Oct 18, 2026, 13:17:26 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 18, 2026, 13:17 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.