3.4-Magnitude Earthquake Strikes Ontario Area Wednesday Morning

The U.S. Geological Survey recorded the early tremor at a depth of nearly four miles, with shaking noted in nearby communities.

By Staff Reports

Sep 2, 2026, 9:15 AM EDT · 1 min read

3.4-Magnitude Earthquake Strikes Ontario Area Wednesday Morning — Daily LA Times

A 3.4-magnitude earthquake occurred near Ontario on Wednesday morning, the U.S. Geological Survey indicated.

The event took place at 5:37 a.m. and originated from a depth of nearly four miles.

Residents in the Fontana and Chino areas contacted ABC7 Los Angeles to report that the shaking had woken them.

This report is based on coverage by ABC7 Los Angeles: https://abc7.com/post/34-magnitude-earthquake-hits-ontario-shaking-felt-san-bernardino-county-usgs-says/19779712/