Every recorded earthquake near
Earthquakes near San Dimas, CA
M 3.2
Latest: 5:37 am PDT on 2 September 2026 · 23 km (14 mi) ESE of San Dimas, CA
The most recent earthquake of M2.5 or more near San Dimas was M 3.2, 23 km (14 mi) ESE of San Dimas, CA, at 5:37 am PDT on 2 September 2026. 730 people reported feeling it to USGS. 2 smaller earthquakes have been recorded nearby since; the newest is first in the list below.
- Within 30 km since 2016
- 902 earthquakes of M1.5 or more
- In the last 12 months
- 37
- Largest since 2016
- M 4.5 on 18 September 2020, 26 km (16 mi) WSW of San Dimas, CA
- Reported felt
- 436 of them have felt reports to USGS
USGS · feed checked · newest earthquake in our database · this page
The latest 50
- 1.6 22 km (14 mi) SSW of San Dimas, CA
- 1.5 22 km (14 mi) ESE of San Dimas, CA
- 3.2 23 km (14 mi) ESE of San Dimas, CA · felt by 730
- 1.7 29 km (18 mi) E of San Dimas, CA
- 1.7 3 km (2 mi) ENE of San Dimas, CA
- 1.6 23 km (14 mi) ESE of San Dimas, CA
- 2.8 23 km (14 mi) ESE of San Dimas, CA · felt by 128
- 2.0 20 km (13 mi) SSW of San Dimas, CA · felt by 10
- 1.5 22 km (14 mi) ESE of San Dimas, CA
- 1.7 24 km (15 mi) SSW of San Dimas, CA
- 1.8 19 km (12 mi) SW of San Dimas, CA
- 1.7 24 km (15 mi) S of San Dimas, CA
- 2.0 6 km (4 mi) NNE of San Dimas, CA
- 2.5 22 km (13 mi) ESE of San Dimas, CA · felt by 151
- 1.6 28 km (18 mi) SSE of San Dimas, CA
- 1.6 25 km (15 mi) ESE of San Dimas, CA
- 1.6 19 km (12 mi) SSE of San Dimas, CA
- 2.0 26 km (16 mi) S of San Dimas, CA
- 1.6 10 km (6 mi) NE of San Dimas, CA · felt by 1
- 1.5 18 km (11 mi) SSW of San Dimas, CA
- 1.8 14 km (9 mi) WSW of San Dimas, CA
- 1.7 6 km (4 mi) SSE of San Dimas, CA
- 2.3 21 km (13 mi) ESE of San Dimas, CA · felt by 38
- 1.5 25 km (15 mi) SSE of San Dimas, CA
- 1.8 29 km (18 mi) ESE of San Dimas, CA · felt by 1
- 1.8 29 km (18 mi) ESE of San Dimas, CA · felt by 1
- 1.6 22 km (14 mi) NE of San Dimas, CA
- 1.8 15 km (9 mi) W of San Dimas, CA
- 1.7 6 km (4 mi) NNE of San Dimas, CA
- 1.8 16 km (10 mi) ENE of San Dimas, CA
- 1.6 22 km (14 mi) ESE of San Dimas, CA
- 1.9 3 km (2 mi) E of San Dimas, CA · felt by 1
- 1.8 6 km (4 mi) NNW of San Dimas, CA
- 1.5 27 km (17 mi) S of San Dimas, CA
- 1.5 22 km (14 mi) ESE of San Dimas, CA
- 1.8 29 km (18 mi) E of San Dimas, CA · felt by 7
- 2.3 25 km (16 mi) S of San Dimas, CA · felt by 1
- 1.5 26 km (16 mi) SW of San Dimas, CA
- 3.4 10 km (6 mi) NNE of San Dimas, CA · felt by 549
- 1.9 26 km (16 mi) E of San Dimas, CA
- 1.7 20 km (12 mi) S of San Dimas, CA
- 2.4 28 km (18 mi) SW of San Dimas, CA · felt by 181
- 1.6 22 km (14 mi) ESE of San Dimas, CA · felt by 2
- 3.4 22 km (14 mi) ESE of San Dimas, CA · felt by 577
- 1.6 22 km (14 mi) ESE of San Dimas, CA · felt by 6
- 3.2 22 km (14 mi) ESE of San Dimas, CA · felt by 14
- 3.5 22 km (14 mi) ESE of San Dimas, CA · felt by 1,188
- 2.1 27 km (16 mi) S of San Dimas, CA
- 2.0 24 km (15 mi) SSW of San Dimas, CA · felt by 2
- 1.6 23 km (15 mi) E of San Dimas, CA
From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are San Dimas time. Distances are from the town centre. Quakes USGS named after San Dimas are listed even when they are further out.
On the map
The white circle is San Dimas; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Before 2016
The USGS record since 1900 lists 9 earthquakes of M5 or more within 50 km of San Dimas; the five largest:
- 5.9 The 1987 Whittier Narrows, California Earthquake · 26 km WSW of San Dimas
- 5.8 The 1991 Sierra Madre, California Earthquake · 25 km NW of San Dimas
- 5.5 The 1990 Upland, California Earthquake · 11 km ENE of San Dimas
- 5.4 5km S of Chino Hills, CA · 18 km SSE of San Dimas
- 5.2 3km W of Lytle Creek, CA · 30 km ENE of San Dimas
USGS ComCat, M5+ from 1900 to 2016. This is the record, not a forecast.
Nearest mapped faults
- Sierra Madre fault, 2 km from its surface trace
- San Gabriel fault, 15 km from its surface trace
- Raymond fault, 18 km from its surface trace
USGS Quaternary Fault and Fold Database. Near is not the same as on.
Nearby towns
Charter Oak 4 km · La Verne 4 km · Chino Hills 13 km · Ontario 15 km
If you felt one
- Was that an earthquake? — checks what was recorded near you in the last hour
- Report what you felt to USGS — reports go to USGS, not to us
- Earthquakes in California, with the state's activity score
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.