Every recorded earthquake within 30 km
Earthquakes near Pomona, CA
No earthquake was likely felt in Pomona in the 24 hours to 1:02 am PDT (08:02 UTC). The last one was M 3.2, 16 km (10 mi) ESE, at 5:37 am PDT on 2 September 2026, estimated intensity III (weak) in town; 730 felt reports to USGS.
M 2.7
Latest: 1:09 am PDT on 8 October 2026 · 25 km (16 mi) ENE of Pomona, CA
The most recent earthquake of M2.5 or more near Pomona was M 2.7, 25 km (16 mi) ENE of Pomona, CA, at 1:09 am PDT on 8 October 2026, 6 km deep. 158 people reported feeling it to USGS. The estimated shaking in Pomona was intensity II (weak), felt by some people at rest indoors. 4 smaller earthquakes have been recorded near Pomona since; the newest is first in the list below.
In the last 24 hours, 1 earthquake of M1.5 or more was recorded within 30 km (19 mi) of Pomona: M 1.6, 27 km (17 mi) E of Pomona, CA, at 5:04 pm PDT.
- Last 24 hours
- 1
- Last 7 days
- 7
- Last 30 days
- 10 · an average 30 days here since 2016: 8.5
- Last 12 months
- 63 · largest M 3.2 on 2 September 2026
- Since 2016
- 1,118 earthquakes of M1.5 or more within 30 km
- Largest since 2016
- M 4.4 on 28 August 2018, 9 km (6 mi) NNW of Pomona, CA
- Reported felt
- 534 of them have felt reports to USGS
- Nearest mapped fault
- Sierra Madre fault, 7 km from its surface trace
USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses
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, and they are what produces the intensity maps
- Expect aftershocks, and be ready to Drop, Cover, and Hold On if you feel one; if you are in a damaged building, go outside and move away from it (Ready.gov, FEMA; what to do during and after an earthquake)
- Near the coast, go inland or to higher ground as soon as strong shaking stops (Ready.gov); official warnings are on Tsunami.gov
- 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.
The last 30 days
The latest 50
- 1.6 27 km (17 mi) E of Pomona, CA
- 1.7 16 km (10 mi) ESE of Pomona, CA
- 1.7 27 km (17 mi) NE of Pomona, CA
- 1.5 23 km (14 mi) WNW of Pomona, CA
- 2.7 25 km (16 mi) ENE of Pomona, CA · felt by 158
- 1.5 25 km (16 mi) ENE of Pomona, CA
- 2.1 28 km (18 mi) ENE of Pomona, CA · felt by 1
- 1.9 16 km (10 mi) ESE of Pomona, CA
- 1.7 16 km (10 mi) ESE of Pomona, CA
- 1.6 21 km (13 mi) SW of Pomona, CA
- 1.8 30 km (18 mi) SSE of Pomona, CA
- 1.5 16 km (10 mi) ESE of Pomona, CA
- 3.2 16 km (10 mi) ESE of Pomona, CA · felt by 730
- 1.7 26 km (16 mi) ENE of Pomona, CA
- 1.7 7 km (5 mi) NNW of Pomona, CA
- 1.6 16 km (10 mi) ESE of Pomona, CA
- 2.8 16 km (10 mi) ESE of Pomona, CA · felt by 128
- 2.0 18 km (11 mi) SW of Pomona, CA · felt by 10
- 2.1 26 km (16 mi) SSE of Pomona, CA · felt by 4
- 1.6 26 km (16 mi) SSE of Pomona, CA
- 2.2 26 km (16 mi) SSE of Pomona, CA · felt by 11
- 3.0 26 km (16 mi) SSE of Pomona, CA · felt by 402
- 1.6 26 km (16 mi) SSE of Pomona, CA
- 1.5 16 km (10 mi) ESE of Pomona, CA
- 1.7 21 km (13 mi) SW of Pomona, CA
- 1.9 30 km (19 mi) NE of Pomona, CA
- 1.8 21 km (13 mi) WSW of Pomona, CA
- 1.7 20 km (13 mi) SSW of Pomona, CA
- 2.0 12 km (7 mi) NNW of Pomona, CA
- 2.5 15 km (9 mi) ESE of Pomona, CA · felt by 151
- 1.6 22 km (13 mi) S of Pomona, CA
- 1.6 18 km (11 mi) E of Pomona, CA
- 1.6 12 km (8 mi) SSE of Pomona, CA
- 2.0 20 km (13 mi) S of Pomona, CA
- 1.6 12 km (8 mi) NNE of Pomona, CA · felt by 1
- 1.5 15 km (9 mi) SW of Pomona, CA
- 1.9 28 km (18 mi) ENE of Pomona, CA · felt by 2
- 1.8 19 km (12 mi) W of Pomona, CA
- 1.7 in Pomona, CA
- 1.8 29 km (18 mi) ENE of Pomona, CA · felt by 1
- 2.3 14 km (9 mi) ESE of Pomona, CA · felt by 38
- 1.7 28 km (18 mi) ENE of Pomona, CA
- 2.4 27 km (16 mi) ENE of Pomona, CA · felt by 7
- 1.5 18 km (11 mi) S of Pomona, CA
- 1.8 23 km (14 mi) E of Pomona, CA · felt by 1
- 1.8 23 km (14 mi) E of Pomona, CA · felt by 1
- 1.6 23 km (14 mi) NNE of Pomona, CA
- 1.8 21 km (13 mi) WNW of Pomona, CA
- 1.9 26 km (16 mi) ENE of Pomona, CA · felt by 8
- 1.6 28 km (17 mi) ENE of Pomona, 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 Pomona time. Distances are from the town centre. Quakes USGS named after Pomona are listed even when they are further out.
Show these earthquakes on your own site: a free card with the latest quakes near Pomona, for a local news site, school or neighborhood page.
On the map
The white circle is Pomona; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Estimated shaking in Pomona
The strongest shaking in Pomona from a quake since 2016 is estimated at intensity IV (light), from the M 4.4 on 28 August 2018, 9 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.
| Magnitude | When | Distance | Shaking in Pomona (est.) |
|---|---|---|---|
| M 4.4 | 9 km | IV · Light · felt by 6,155 | |
| M 4.0 | 15 km | III · Weak · felt by 6,217 | |
| M 4.0 | 15 km | III · Weak · felt by 2,758 | |
| M 3.5 | 13 km | III · Weak · felt by 1,379 | |
| M 3.6 | 16 km | III · Weak · felt by 1,337 |
An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. All 5 reach intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.
Before 2016
The USGS record since 1900 lists 11 earthquakes of M5 or more within 50 km of Pomona; the five largest:
- 6.2 3 km SE of San Bernardino, California · 46 km E of Pomona
- 5.9 The 1987 Whittier Narrows, California Earthquake · 30 km W of Pomona
- 5.8 The 1991 Sierra Madre, California Earthquake · 33 km NW of Pomona
- 5.5 The 1990 Upland, California Earthquake · 11 km NNE of Pomona
- 5.4 5km S of Chino Hills, CA · 12 km S of Pomona
USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.
Nearest mapped faults
- Sierra Madre fault, 7 km from its surface trace
- Red Hill-Etiwanda Avenue fault, 16 km from its surface trace
- Elsinore fault, 16 km from its surface trace
USGS Quaternary Fault and Fold Database. Near is not the same as on.
Nearby towns
La Verne 5 km · Claremont 5 km · Diamond Bar 6 km · Montclair 6 km · Chino Hills 7 km · Chino 8 km · San Dimas 8 km · Ontario 9 km
Be ready
Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.
- Ready.gov: earthquakes (FEMA) — what to do before, during and after, including Drop, Cover, and Hold On
- Build a kit (FEMA) — water, food and supplies for several days; our summary
- USGS: preparedness — the hazard behind the advice, from the agency that records every quake on this page
- The Great ShakeOut — the yearly earthquake drill, with material for homes, schools and workplaces
- ShakeAlert covers Pomona, CA: alerts reach phones through Wireless Emergency Alerts and the MyShake app, seconds before shaking arrives
- Tsunami.gov (NOAA) — the official tsunami warnings for the coast; a quake page here never stands in for one
- California Earthquake Authority — retrofit grants and the state's not-for-profit earthquake insurance
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.