Every recorded earthquake near
Earthquakes near Ontario, CA
M 3.2
Latest: 5:37 am PDT on 2 September 2026 · 8 km (5 mi) SE of Ontario, CA
The most recent earthquake of M2.5 or more near Ontario was M 3.2, 8 km (5 mi) SE of Ontario, CA, at 5:37 am PDT on 2 September 2026. 730 people reported feeling it to USGS. 5 smaller earthquakes have been recorded nearby since; the newest is first in the list below.
- Within 30 km since 2016
- 1,555 earthquakes of M1.5 or more
- In the last 12 months
- 100
- Largest since 2016
- M 4.4 on 28 August 2018, 14 km (9 mi) NW of Ontario, CA
- Reported felt
- 611 of them have felt reports to USGS
USGS · feed checked · newest earthquake in our database · this page
The latest 50
- 2.1 26 km (16 mi) NE of Ontario, CA
- 0.9 8 km (5 mi) SE of Ontario, CA
- 1.5 28 km (17 mi) SSE of Ontario, CA
- 1.6 30 km (19 mi) WSW of Ontario, CA
- 1.6 28 km (17 mi) SSE of Ontario, CA
- 1.5 7 km (5 mi) SE of Ontario, CA
- 3.2 8 km (5 mi) SE of Ontario, CA · felt by 730
- 1.6 27 km (17 mi) ENE of Ontario, CA
- 1.7 17 km (11 mi) ENE of Ontario, CA
- 1.7 28 km (17 mi) SSE of Ontario, CA
- 1.7 13 km (8 mi) WNW of Ontario, CA
- 1.6 8 km (5 mi) SE of Ontario, CA
- 2.8 8 km (5 mi) SE of Ontario, CA · felt by 128
- 2.0 26 km (16 mi) WSW of Ontario, CA · felt by 10
- 2.1 26 km (16 mi) S of Ontario, CA · felt by 4
- 1.6 26 km (16 mi) S of Ontario, CA
- 2.2 26 km (16 mi) S of Ontario, CA · felt by 11
- 3.0 26 km (16 mi) S of Ontario, CA · felt by 402
- 1.6 26 km (16 mi) S of Ontario, CA
- 1.6 26 km (16 mi) ENE of Ontario, CA
- 1.7 24 km (15 mi) NE of Ontario, CA
- 1.5 8 km (5 mi) SE of Ontario, CA
- 1.8 28 km (18 mi) SSE of Ontario, CA
- 1.8 28 km (18 mi) SSE of Ontario, CA
- 1.6 22 km (14 mi) ENE of Ontario, CA
- 2.1 27 km (17 mi) NE of Ontario, CA
- 1.7 28 km (17 mi) SW of Ontario, CA
- 1.7 28 km (17 mi) SSE of Ontario, CA
- 1.6 23 km (14 mi) ENE of Ontario, CA
- 1.9 24 km (15 mi) NNE of Ontario, CA
- 1.8 30 km (19 mi) WSW of Ontario, CA
- 1.6 30 km (19 mi) ENE of Ontario, CA
- 1.8 28 km (17 mi) SSE of Ontario, CA
- 1.7 27 km (17 mi) SW of Ontario, CA
- 1.6 28 km (17 mi) SSE of Ontario, CA
- 2.0 16 km (10 mi) NW of Ontario, CA
- 1.8 28 km (18 mi) SSE of Ontario, CA
- 2.0 26 km (16 mi) NE of Ontario, CA · felt by 1
- 2.4 26 km (16 mi) NE of Ontario, CA · felt by 4
- 2.5 7 km (4 mi) SE of Ontario, CA · felt by 151
- 1.5 28 km (17 mi) SSE of Ontario, CA
- 1.6 24 km (15 mi) SSW of Ontario, CA
- 2.7 24 km (15 mi) ENE of Ontario, CA · felt by 184
- 2.0 28 km (18 mi) SSE of Ontario, CA · felt by 3
- 1.6 10 km (6 mi) ESE of Ontario, CA
- 1.6 14 km (8 mi) SSW of Ontario, CA
- 1.6 28 km (17 mi) SSE of Ontario, CA
- 2.0 23 km (14 mi) SSW of Ontario, CA
- 1.9 27 km (17 mi) NNE of Ontario, CA
- 1.6 13 km (8 mi) NNW of Ontario, CA · felt by 1
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 Ontario time. Distances are from the town centre. Quakes USGS named after Ontario are listed even when they are further out.
On the map
The white circle is Ontario; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Before 2016
The USGS record since 1900 lists 14 earthquakes of M5 or more within 50 km of Ontario; the five largest:
- 6.2 3 km SE of San Bernardino, California · 36 km E of Ontario
- 6.0 The 1910 Lake Elsinore, California Earthquake · 47 km SSE of Ontario
- 5.9 The 1987 Whittier Narrows, California Earthquake · 39 km W of Ontario
- 5.8 The 1991 Sierra Madre, California Earthquake · 39 km NW of Ontario
- 5.5 The 1990 Upland, California Earthquake · 10 km NNW of Ontario
USGS ComCat, M5+ from 1900 to 2016. This is the record, not a forecast.
Nearest mapped faults
- Red Hill-Etiwanda Avenue fault, 8 km from its surface trace
- Sierra Madre fault, 9 km from its surface trace
- San Jacinto fault, 16 km from its surface trace
USGS Quaternary Fault and Fold Database. Near is not the same as on.
Nearby towns
Rancho Cucamonga 7 km · La Verne 12 km · Chino Hills 13 km · Glen Avon 16 km · Charter Oak 18 km · Pedley 19 km · Fontana 20 km · Corona 22 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.