Live record · within 100 km (62 mi) · M2.5+
Earthquakes near Castro Valley
In the last 30 days there were 5 earthquakes of magnitude 2.5 or larger within 100 km (62 mi) of Castro Valley, California, and 0 in the last 24 hours. The strongest was a magnitude 3.3, 64 km (40 mi) ESE of Castro Valley, on 2026-09-27.
Earthquakes M2.5+ within 100 km
- Last 24 hours0
- Last 7 days1
- Last 30 days5
- Last year143
- Last 5 years366
M1+ in the last 7 days: 15. Methodology
01 — History
Earthquakes per month near Castro Valley
206 earthquakes of magnitude 2.5 or larger within 100 km of Castro Valley in the last 24 months. The busiest month was Dec 2025, with 34.
02 — Recent
Recent earthquakes near Castro Valley
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 3.1 | 23 km WSW of Gustine, CA | 95 km / 59 mi | depth -1 km | |
| 2.5 | 10 km E of Gilroy, CA | 96 km / 60 mi | depth 6 km | |
| 2.5 | 5 km W of Yountville, CA | 84 km / 52 mi | depth 8 km | |
| 2.6 | 26 km WSW of Westley, CA | 63 km / 39 mi | depth 4 km | |
| 3.3 | 27 km WSW of Westley, CA | 64 km / 40 mi | depth 3 km |
03 — Questions
Earthquakes in Castro Valley, answered
Was there an earthquake in Castro Valley today?
No earthquake of magnitude 2.5 or larger was recorded within 100 km of Castro Valley in the last 24 hours. Smaller ones can still occur. The home page lists them when you choose “All” magnitudes.
Are earthquakes common near Castro Valley?
Over the last five years there were 366 earthquakes of magnitude 2.5 or larger within 100 km of Castro Valley, an average of 73 a year. 143 occurred in the last 12 months. That is 95% above the five-year average.
What was the largest earthquake near Castro Valley in five years?
A magnitude 5.1 on Oct 25, 2022, 18:42 UTC, 56 km (35 mi) SE of Castro Valley, at a depth of 8 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
Put this on your website
Show a live version of this report on your own site. It’s free, updates every two minutes and links back here. How the widget works.
<iframe src="https://quakewatch.beer/embed/us/california/castro-valley" width="360" height="430" style="border:0" loading="lazy" title="Recent earthquakes near Castro Valley"></iframe>