Ontario, CA – A 4.0 magnitude earthquake shook Southern California early Sunday, with the epicenter located just southeast of Ontario. Residents across the region reported feeling the tremors, which occurred at a depth of 5.7 km.
According to the U.S. Geological Survey (USGS), the earthquake struck at 3:51 a.m. local time. While no major damage or injuries have been reported, the community quickly responded through the “Did You Feel It?” platform, contributing nearly 400 responses to track the quake’s intensity. An aftershock of 2.5 magnitude hit shortly after.
The earthquake was felt across several cities in the Inland Empire, including San Bernardino and Riverside. Residents described light to moderate shaking, with many taking to social media to share their experiences.
Experts remind locals to remain prepared for aftershocks and larger seismic events, emphasizing the importance of earthquake readiness plans. The USGS continues to monitor seismic activity in the region.
For those who experienced the quake, the USGS encourages reporting their observations via the “Did You Feel It?” feature to aid in research and public safety efforts.