California, United States · within 250 km
Earthquakes near San Diego
In the last 30 days, 19 earthquakes of magnitude 2.5 or greater were recorded within 250 km of San Diego; the largest was a magnitude 3.8 earthquake 14 km N of Simi Valley, California, United States on 30 Sep 2026.
Data: USGS · updated · sources and licences
- 24 hours
- 30
- all magnitudes
- 7 days
- 7
- M2.5+
- 30 days
- 19
- M2.5+
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Last 24 hours
Earlier this week, magnitude 2.5 and above
| Mag | Location | Time (UTC) |
|---|---|---|
| 3.2ml | Near Signal Hill, California, United States | |
| 2.7ml | 4 km WNW of Fontana, California, United States | |
| 2.6ml | 4 km NNW of Big Bear City, California, United States | |
| 2.5ml | 31 km SW of Dana Point, California, United States | |
| 2.8ml | 32 km SW of Dana Point, California, United States | |
| 3.5ml | 31 km SW of Dana Point, California, United States | |
| 2.7ml | 51 km W of El Sauzal de Rodríguez, Baja California, Mexico |
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Largest in the last 30 days
| Mag | Location | Time (UTC) |
|---|---|---|
| 3.8mw | 14 km N of Simi Valley, California, United States | |
| 3.6mw | 7 km WSW of Hermosa Beach, California, United States | |
| 3.5ml | 31 km SW of Dana Point, California, United States | |
| 3.3ml | 41 km SW of Laguna Beach, California, United States | |
| 3.2ml | Near Signal Hill, California, United States | |
| 3.1ml | 23 km SW of La Quinta, California, United States | |
| 3.0ml | 12 km SW of Ciudad Coahuila, Baja California, Mexico | |
| 3.0ml | 42 km SW of Laguna Beach, California, United States | |
| 2.9ml | 4 km S of East Rancho Dominguez, California, United States | |
| 2.8ml | 32 km SW of Dana Point, California, United States |
Where they occurred
Largest since 1900
Magnitude 6 and above within 250 km of San Diego.
Loading the historical catalogue…
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Questions
How many earthquakes happen within 250 km of San Diego?
In the last 30 days, 19 earthquakes of magnitude 2.5 or greater were recorded within 250 km of San Diego, 7 of them in the last 7 days. In the last 24 hours, 30 earthquakes of any magnitude were recorded. Most small earthquakes are not felt.
What was the largest recent earthquake within 250 km of San Diego?
The largest in the last 30 days was a magnitude 3.8 earthquake 14 km N of Simi Valley, California, United States on 30 Sep 2026, at a depth of 10 km.
What is the largest earthquake recorded within 250 km of San Diego since 1900?
According to the USGS catalogue, the largest was a magnitude 7.3 earthquake on 28 Jun 1992 (The 1992 Landers, California Earthquake). Magnitudes of early 20th-century earthquakes are less certain than modern ones.
How deep are earthquakes within 250 km of San Diego?
100% of the magnitude 2.5+ earthquakes recorded within 250 km of San Diego in the last 30 days were shallower than 70 km. Shallow earthquakes generally cause stronger shaking at the surface than deep ones of the same magnitude.
Where can I get official earthquake information for San Diego, California?
For official information, warnings and safety advice, follow USGS Earthquake Hazards Program (https://earthquake.usgs.gov/) and your local civil protection authority. This site compiles agency reports and is not a warning service.
Can earthquakes be predicted?
No. Scientists can estimate how likely strong shaking is in a region over years or decades, but no method predicts the time, place and size of a specific earthquake. Aftershocks are expected after large earthquakes and become less frequent over time.