4.6
Earthquake Details: 1 km SE of Boulder Creek, California, United States
Apr 2, 2026, 08:41:25
- Depth
- 10.43 km
- Felt reports
- 33,078
Source: USGSUpdated: Oct 8, 2026, 08:51 AM UTC
A magnitude 4.6 earthquake occurred on Apr 2, 2026 at 08:41:25. Epicenter: 1 km SE of Boulder Creek, California, United States. Reported depth: 10.43 km.
Status: Reviewed
Tsunami information
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Time & depth
- Local time
- Apr 2, 2026, 01:41:25 PDT
- UTC
- Apr 2, 2026, 08:41:25 UTC
10.43 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby major cities
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSmw 4.59
nc75337442
- Depth:
- 10.43 km
- Status:
- Reviewed
- Time:
- Updated:
- Oct 8, 2026, 08:51 AM UTC
Technical Details
Depth10.43 km
Significance904
Latitude37.1157
Longitude-122.1125
Event IDnc75337442
Magnitude4.6
Updated:Oct 8, 2026, 08:51:39 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 8, 2026, 08:51 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.