Earthquake · reviewed by a seismologist
M 2.1ml
Earthquake near San Diego, CA
No earthquake was likely felt in San Diego in the 24 hours to 11:24 am PST (19:24 UTC). The last one was M 4.7, 152 km (95 mi) E, at 12:10 am PDT on 10 May 2026, estimated intensity II (weak) in town; 203 felt reports to USGS. Every earthquake near San Diego
This page: a magnitude 2.1 earthquake was recorded 22 km (14 mi) southeast of San Diego, CA, at 12:28 am PDT on 8 October 2025 (07:28 UTC), 15 km deep. 7 people have reported feeling it to USGS.
USGS: 3 km ENE of San Ysidro, CA
30 km (19 mi) SSE of San Diego, CA · 7 km (4 mi) S of Chula Vista, CA
- When
- 12:28 am PDT on 8 October 2025 ()
- Where
- 22 km (14 mi) southeast of San Diego, CA · earthquakes near San Diego
- Magnitude
- M 2.1 (ml)
- Depth
- 15 km below the surface
- Felt
- 7 reports · strongest reported intensity III
- Nearest
- San Diego County, 56 km NNE
- Nearest mapped fault
- Newport-Inglewood-Rose Canyon fault, 11 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 400 days ago
Earthquake alerts for San Diego, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In San Diego, 22 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Imperial Beach, Bonita, Chula Vista, National City, La Presa, Lemon Grove.
How big was it?
This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
- Magna, Utah 2020 M 5.7 250,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 43 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 32.5657, -117.0143. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 56 km (35 mi) | NNE | earthquakes near San Diego County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
42 earthquakes have been recorded within 50 km since this one.
- 1.1 9 km NE of Alpine, CA
- 1.4 5 km NE of Rancho San Diego, CA
- 1.1 6 km NNW of Lakeside, CA
- 0.9 9 km SSE of Jamul, CA
- 0.9 7 km NNW of La Mesa, CA
- 1.3 6 km ESE of Bonita, CA
- 1.6 5 km NE of Rancho San Diego, CA
- 0.7 2 km NE of Imperial Beach, CA
- 1.3 9 km W of Tecate, B.C., MX
- 1.2 6 km NNW of Lakeside, CA
- 1.3 5 km NE of Rancho San Diego, CA
- 1.3 2 km NE of Imperial Beach, CA
- 1.2 6 km W of Tecate, B.C., MX
- 1.1 6 km ESE of Chula Vista, CA
- 0.5 7 km W of Tecate, B.C., MX
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.