Live record · within 100 km (62 mi) · M2.5+
Earthquakes near Rialto
In the last 30 days there were 5 earthquakes of magnitude 2.5 or larger within 100 km (62 mi) of Rialto, California, and 0 in the last 24 hours. The strongest was a magnitude 3.2, 83 km (52 mi) WSW of Rialto, on 2026-10-09.
Earthquakes M2.5+ within 100 km
- Last 24 hours0
- Last 7 days0
- Last 30 days5
- Last year55
- Last 5 years324
M1+ in the last 7 days: 52. Methodology
01 — History
Earthquakes per month near Rialto
131 earthquakes of magnitude 2.5 or larger within 100 km of Rialto in the last 24 months. The busiest month was Aug 2025, with 12.
02 — Recent
Recent earthquakes near Rialto
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 2.8 | 3 km NNW of San Jacinto, CA | 50 km / 31 mi | depth 14 km | |
| 2.7 | 4 km E of San Jacinto, CA | 55 km / 34 mi | depth 12 km | |
| 3.2 | 2 km SW of Signal Hill, CA | 83 km / 52 mi | depth 12 km | |
| 2.7 | 2 km WNW of Fontana, CA | 10 km / 6 mi | depth 6 km | |
| 2.6 | 4 km NNW of Big Bear City, CA | 51 km / 32 mi | depth 4 km |
03 — Questions
Earthquakes in Rialto, answered
Was there an earthquake in Rialto today?
No earthquake of magnitude 2.5 or larger was recorded within 100 km of Rialto in the last 24 hours. Smaller ones can still occur. The home page lists them when you choose “All” magnitudes.
Are earthquakes common near Rialto?
Over the last five years there were 324 earthquakes of magnitude 2.5 or larger within 100 km of Rialto, an average of 65 a year. 55 occurred in the last 12 months. That is close to the five-year average.
What was the largest earthquake near Rialto in five years?
A magnitude 4.4 on Aug 12, 2024, 19:20 UTC, 74 km (46 mi) W of Rialto, at a depth of 11 km. See this earthquake
Counts describe past activity within 100 km of the city centre. They are not a forecast or a risk assessment. Data updated . Source: USGS.
05 — Embed
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