1.6

Earthquake Details: 2 km W of Fontana, California, United States

Oct 23, 2026, 09:37:49

Depth
6.61 km
Felt reports
No data
Source: USGSUpdated: Oct 23, 2026, 09:50 AM UTC

A magnitude 1.6 earthquake occurred on Oct 23, 2026 at 09:37:49. Epicenter: 2 km W of Fontana, California, United States. Reported depth: 6.61 km.

Tsunami information

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Time & depth

Local time
Oct 23, 2026, 02:37:49 PDT
UTC
Oct 23, 2026, 09:37:49 UTC
6.61 km · Shallow-focus

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

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Nearby major cities

Fontana
4 km E
Rancho Cucamonga
10 km W
Rialto
10 km E
Rubidoux
13 km SE
Nearby earthquakes · 12
M3.6off the coast of Baja California, MéxicoBeforeM3.2Baja California, MéxicoBeforeM2.411 km NE of Kernville, CABeforeM2.5central CaliforniaBeforeM3.223 km WSW of Gustine, CABeforeM2.316 km NNE of Indio, CABeforeM2.42 km E of Aromas, CABeforeM3.015 km S of Tres Pinos, CABeforeM2.417 km WSW of Delta, B.C, MXBeforeM3.0Baja California, MéxicoBeforeM2.616 km W of Alberto Oviedo Mota, B.C, MXAfterM2.3NevadaAfter

Agency measurements

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

  • USGSM 1.59

    ci41350959

    Depth:
    6.61 km
    Time:
    Updated:
    Oct 23, 2026, 09:50 AM UTC

Technical Details

Depth6.61 km
Significance39
Latitude34.0978
Longitude-117.4830
Event IDci41350959
Magnitude1.6
Updated:Oct 23, 2026, 09:50:23 UTC

Regional Seismicity

View recent seismic activity near this event:

United StatesCaliforniaFontana (Nearest City)

External Resources

View on USGS 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 23, 2026, 09:50 UTC.

Data sources: