A Wake-Up Call from Beneath: Understanding Earthquakes in Southern California

Early Sunday morning, a magnitude-4.0 earthquake shook the Ontario area, startling many Southern California residents out of their slumber. This seismic event, occurring at 3:51 a.m., serves as a reminder of the ever-present geological forces beneath us. NBC Southern California provides an in-depth look at the quake's impact.

While this particular quake was not severe, it highlights the importance of preparedness in earthquake-prone regions. The USGS reports that such quakes, though moderate, can still cause damage and disruption. It's crucial for residents to have an emergency plan and supplies ready.

Earthquakes remind us of the dynamic nature of our planet. They are a natural phenomenon that, while unpredictable, can be prepared for. For more information on how to stay safe during an earthquake, visit Ready.gov.