Earthquake · reviewed by a seismologist
M 2.2ml
Earthquake near San Bernardino, CA
No earthquake was likely felt in San Bernardino in the 24 hours to 1:52 pm PST (21:52 UTC). The last one was M 2.1, 9 km (6 mi) SSE, at 10:40 am PDT on 31 October 2026, estimated intensity II (weak) in town. Every earthquake near San Bernardino
This page: a magnitude 2.2 earthquake was recorded 4 km (3 mi) north-northwest of San Bernardino, CA, at 12:54 am PDT on 14 May 2025 (07:54 UTC), 9.5 km deep. 4 people have reported feeling it to USGS.
USGS: 2 km NNW of San Bernardino, CA
in San Bernardino, CA
- When
- 12:54 am PDT on 14 May 2025 ()
- Where
- 4 km (3 mi) north-northwest of San Bernardino, CA · earthquakes near San Bernardino
- Magnitude
- M 2.2 (ml)
- Depth
- 9.5 km below the surface
- Felt
- 4 reports · strongest reported intensity II
- Nearest
- Orange County, 69 km SW
- Nearest mapped fault
- San Andreas fault, 4 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 541 days ago
Earthquake alerts for San Bernardino, CA
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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 16 km (10 mi) from the epicentre. In San Bernardino, 4 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.
Likely felt in: Muscoy 4 km, intensity II · San Bernardino 4 km, intensity II · Rialto 8 km, intensity II · Colton 8 km, intensity II · Highland 9 km, intensity II · Loma Linda 12 km, intensity II · Fontana 14 km, intensity II · Redlands 15 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 67 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 230,000× the energy of this one
- Magna, Utah 2020 M 5.7 160,000× the energy of this one
- Around the size people start to feel M 3.0 14× the energy of this one
- This earthquake M 2.2 about 67 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2016-01-06 — about 1,700 times the energy of this one.
Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:
- 6.3 The 1992 Big Bear, California Earthquake · 44 km E of this epicentre
- 6.2 3 km SE of San Bernardino, California · 7 km SSE of this epicentre
- 5.6 7km ENE of Running Springs, CA · 26 km ENE of this epicentre
- 5.5 The 1990 Upland, California Earthquake · 37 km W of this epicentre
- 5.5 11km SSE of Big Bear Lake, California · 41 km E of this epicentre
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 34.1475, -117.2995. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Orange County, CA | 69 km (43 mi) | SW | earthquakes near Orange County |
| Los Angeles County, CA | 89 km (55 mi) | W | earthquakes near Los Angeles County |
| Riverside County, CA | 128 km (80 mi) | ESE | earthquakes near Riverside County |
| San Bernardino County, CA | 129 km (80 mi) | NE | earthquakes near San Bernardino County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 1.6 5 km S of Redlands, CA
- 1.6 5 km SSW of Redlands, CA
- 1.9 16 km SSE of Big Bear Lake, CA
- 1.6 3 km NE of Rancho Cucamonga, CA
- 1.7 5 km S of Calimesa, CA
- 1.6 15 km SSE of Big Bear Lake, CA
- 2.1 3 km E of Lake Arrowhead, CA
- 1.5 4 km SSE of Home Gardens, CA
- 2.1 8 km NNE of Big Bear City, CA
- 2.0 1 km SW of Loma Linda, CA
- 1.8 4 km SE of Home Gardens, CA
- 1.6 9 km N of La Verne, CA
- 1.8 4 km SE of Yucaipa, CA
- 2.4 5 km E of Calimesa, CA
- 2.1 11 km NNW of Rancho Cucamonga, CA
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.