Earthquake Details: 6 km SE of Ontario, California, United States

8/16/2026, 8:35:29 PM

A magnitude 2.8 earthquake occurred near 6 km SE of Ontario, California, United States on 8/16/2026 at 8:35:29 PM. The seismic event was recorded at a depth of 5.59 km. No tsunami warning was issued.

No Tsunami WarningStatus: reviewedType: earthquake

Regional Seismicity

View recent seismic activity near this event:

United States California Eastvale (Nearest City)

Technical Details

Depth5.59 km

Significance119

Latitude34.0115

Longitude-117.5890

Event IDci40674002

Magnitude2.8

Updated:8/16/2026, 9:01:20 PM

External Resources

View on USGS Official Site

Loading map...

Time & depth

Local time: 8/16/2026, 1:35:29 PM PDT
UTC: 8/16/2026, 8:35:29 PM UTC

5.59 km · Shallow-focus

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

Nearby major cities

Nearby event sequence · 10

M2.790 km S of Alberto Oviedo Mota, B.C., MXBefore8/14/2026, 2:57:58 AM M2.512 km SSW of Lompoc, California, United StatesBefore8/14/2026, 12:31:45 PM M3.419 km SW of Toms Place, California, United StatesBefore8/14/2026, 8:38:32 PM M3.342 km SW of Maneadero, B.C., MXBefore8/15/2026, 1:05:14 AM M2.712 km NNE of Trabuco Canyon, California, United StatesBefore8/15/2026, 1:33:39 PM M2.5Central CaliforniaBefore8/16/2026, 6:01:27 AM M2.67 km SW of Atascadero, California, United StatesBefore8/16/2026, 6:41:37 AM M2.810 km ENE of Coso Junction, California, United StatesBefore8/16/2026, 6:49:33 AM M2.5Central CaliforniaBefore8/16/2026, 6:54:12 AM M3.4Offshore Baja California, MexicoBefore8/16/2026, 10:38:09 AM

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: Aug 16, 2026, 09:01 PM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.