Archive · 6 Aug 2025
Earthquake Strikes Near Fontana; California's Seismic Activity Explained
On August 5, 2025, a small earthquake happened near Fontana, California.
It wasn't very strong, and no one was hurt.
California has many earthquakes because it sits on top of two giant plates that are always pushing and grinding against each other.
This movement builds up pressure, which is released during earthquakes.
Also, there are lots of cracks in the ground, called faults, that cause smaller shakes.
Fontana has experienced quakes before, including a larger one in the past.
These faults and the moving plates make California a place where earthquakes are common.
A 3.5 magnitude earthquake struck near Fontana, California, on August 5, 2025.
The earthquake's epicenter was approximately 3.8 miles from Rialto and 4.5 miles from Fontana.
The depth of the earthquake was about 3.6 miles.
No serious injuries or damage have been reported.
California's frequent earthquakes are due to its location near moving tectonic plates and an extensive fault system.
- Who
- The US Geological Survey reported the event.
- What
- A 3.5 magnitude earthquake.
- When
- August 5, 2025, around 4:54 p.m.
- Where
- Near Fontana, California.
- Why
- California is near moving tectonic plates and has an active fault system.
- Magnitude
- 3.5
- Date
- August 5, 2025
- Time
- Around 4:54 p.m.
- Epicenter Distance
- 3.8 miles from Rialto, 4.5 miles from Fontana
- Depth
- Approximately 3.6 miles
- Notable past events
- 7.1 magnitude earthquake on July 5, 2019