2.1

Earthquake Details: 4 km N of Fontana, California, United States

Oct 7, 2026, 00:41:20

Depth: 9.4 km
Felt reports: 1

Source: CIUpdated: Oct 7, 2026, 02:30 PM UTC

A magnitude 2.1 earthquake occurred on Oct 7, 2026 at 00:41:20. Epicenter: 4 km N of Fontana, California, United States. Reported depth: 9.4 km.

Tsunami information

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Time & depth

Local time: Oct 6, 2026, 17:41:20 PDT
UTC: Oct 7, 2026, 00:41:20 UTC

9.4 km · Shallow-focus

Less than 70 km deep. Shaking is often stronger near the epicentre.

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Nearby major cities

Rancho Cucamonga

Nearby earthquakes · 12

M3.531 km SW of Dana Point, CABeforeOct 5, 2026, 20:22:30 M3.5off the coast of Baja California, MéxicoBeforeOct 6, 2026, 10:23:38 M3.7Gulf Of CaliforniaBeforeOct 6, 2026, 19:34:49 M3.4Gulf Of CaliforniaBeforeOct 6, 2026, 22:43:39 M3.8Gulf Of CaliforniaAfterOct 7, 2026, 10:46:39 M3.4Gulf Of CaliforniaAfterOct 8, 2026, 10:16:46 M3.22 km SW of Signal Hill, CAAfterOct 9, 2026, 07:44:17 M3.6Gulf Of CaliforniaAfterOct 9, 2026, 09:18:56 M3.6Gulf Of CaliforniaAfterOct 9, 2026, 09:30:24 M3.2Gulf Of CaliforniaAfterOct 10, 2026, 09:34:36 M3.6Gulf Of CaliforniaAfterOct 10, 2026, 10:30:34 M3.4Baja California, MéxicoAfterOct 11, 2026, 10:15:02

Agency measurements

Agencies may use different observations and magnitude scales, and initial estimates can change.

CIM 2.13
ci41344287
Depth:
9.4 km
Time:
Oct 7, 2026, 12:41:20 AM UTC
Updated:
Oct 7, 2026, 02:30 PM UTC

Technical Details

Depth9.4 km

Significance70

Latitude34.1293

Longitude-117.4572

Event IDci41344287

Magnitude2.1

Updated:Oct 7, 2026, 14:30:36 UTC

Regional Seismicity

View recent seismic activity near this event:

United States California Fontana (Nearest City)

External Resources

View on CI Official Site

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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 7, 2026, 14:30 UTC.

Data sources: