I don’t have live access to tools right now, but here’s what I can share based on recentcoverage up to mid-2025.
Direct answer
- Yes, there have been recent reports of earthquakes near Rialto, California, with several events in the Fontana-Rialto area and related aftershocks. Specific quakes ranged from around magnitude 3.0 to 4.3 in that cluster, and some events were felt across parts of the Inland Empire.
What’s known from the latest notable events
- A sequence of earthquakes occurred in the Rialto/Fontana area, including a main event and aftershocks, with magnitude estimates in the 3.0–4.3 range. This cluster is associated with the Fontana trend, a zone historically prone to linked quakes. Note that reports described shaking felt across a broad swath of Southern California, including Riverside and San Bernardino counties [reliable outlets in the period covered include CBS News and Los Angeles Times coverage; see citations for context].[1][4]
- A subsequent event around early August 2025 registered roughly magnitude 3.5 near Rialto, with light shaking reported across the Inland Empire and as far as San Clemente, reflecting the same geographic cluster. Local outlets and USGS summaries noted the proximity of this event to Fontana and Muscoy.[2][3][6]
- Some articles indicated multiple smaller quakes in the same vicinity earlier in the day, reinforcing the notion of a clustered seismic sequence rather than isolated shocks.[4][6]
What to do if you’re in Prague (your location)
- Stay aware of official updates from USGS and local authorities if you’re tracking events in the U.S. West Coast; you can set alerts for Rialto/Fontana on trusted seismic data platforms.
- If you have relatives or travel plans in Southern California, consider preparedness steps: know your safe spots indoors, have an emergency kit, and review local earthquake safety guidance.
Illustration
- If you’d like, I can generate a simple timeline or map-style visualization showing the locations and approximate times of the Rialto-area quakes from the period, using approximate coordinates and magnitudes. I can also compile a short risk briefing for travelers between Prague and Southern California.
Would you like me to create a concise timeline, a location map, or both, and include sources? If you want current updates, I can search again and provide the latest headlines with citations.