Live record · within 100 km (62 mi) · M2.5+
Earthquakes near Fontana
In the last 30 days there were 6 earthquakes of magnitude 2.5 or larger within 100 km (62 mi) of Fontana, California, and 0 in the last 24 hours. The strongest was a magnitude 3.6, 99 km (62 mi) WSW of Fontana, on 2026-09-27.
Earthquakes M2.5+ within 100 km
- Last 24 hours0
- Last 7 days0
- Last 30 days6
- Last year56
- Last 5 years328
M1+ in the last 7 days: 49. Methodology
01 — History
Earthquakes per month near Fontana
136 earthquakes of magnitude 2.5 or larger within 100 km of Fontana in the last 24 months. The busiest month was Aug 2025, with 12.
02 — Recent
Recent earthquakes near Fontana
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 2.8 | 3 km NNW of San Jacinto, CA | 54 km / 33 mi | depth 14 km | |
| 2.7 | 4 km E of San Jacinto, CA | 59 km / 37 mi | depth 12 km | |
| 3.2 | 2 km SW of Signal Hill, CA | 77 km / 48 mi | depth 12 km | |
| 2.7 | 2 km WNW of Fontana, CA | 4 km / 3 mi | depth 6 km | |
| 2.6 | 4 km NNW of Big Bear City, CA | 57 km / 36 mi | depth 4 km | |
| 3.6 | 7 km WSW of Hermosa Beach, CA | 99 km / 62 mi | depth 12 km |
03 — Questions
Earthquakes in Fontana, answered
Was there an earthquake in Fontana today?
No earthquake of magnitude 2.5 or larger was recorded within 100 km of Fontana in the last 24 hours. Smaller ones can still occur. The home page lists them when you choose “All” magnitudes.
Are earthquakes common near Fontana?
Over the last five years there were 328 earthquakes of magnitude 2.5 or larger within 100 km of Fontana, an average of 66 a year. 56 occurred in the last 12 months. That is close to the five-year average.
What was the largest earthquake near Fontana in five years?
A magnitude 4.4 on Aug 12, 2024, 19:20 UTC, 68 km (43 mi) W of Fontana, 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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