Fontana, CA – August 7, 2025
A magnitude 3.5 earthquake struck near Fontana on Tuesday afternoon, shaking parts of San Bernardino County and the surrounding Inland Empire. The quake occurred at 4:54 p.m. local time and was centered about 4.5 miles from Fontana, with a shallow depth of just 3.6 miles.
Although the earthquake was considered minor in magnitude, many residents across the region reported feeling it. The shaking was noticeable in areas including Rancho Cucamonga, Ontario, Rialto, and even parts of Los Angeles and Orange County. No injuries or significant damage have been reported so far.
Aftershocks and Seismic Activity
Seismologists say small aftershocks are possible following the quake. Fontana lies near several active fault lines, including the San Jacinto and San Andreas faults. This area frequently experiences low to moderate seismic activity. Just days earlier, a 4.3-magnitude earthquake was recorded near Muscoy, also in San Bernardino County.
While no serious threat has been identified, experts emphasize the importance of being earthquake-prepared. Residents are encouraged to review safety plans, check emergency kits, and ensure their homes are secured against seismic activity.
What to Know Now
- The quake hit at 4:54 PM Tuesday, August 6
- Epicenter was 4.5 miles from Fontana
- Magnitude: 3.5, Depth: 3.6 miles
- No reported injuries or major damage
- Aftershocks possible in the next 24-48 hours
This event serves as a reminder of California’s ongoing earthquake risk. Even moderate earthquakes like this one can be widely felt and should not be ignored. Authorities continue to monitor the region for further seismic activity.
If new updates or aftershocks occur, emergency agencies will notify the public accordingly.
