USGS · September 17, 2026
Magnitude 3.1 earthquake — 4 km SSE of Compton, CA
A magnitude 3.1 earthquake was recorded near 4 km SSE of Compton, CA on Sep 17, 2026, 01:32 PM (local time at the epicentre — PDT, UTC-7), at a depth of about 13.2 km, according to USGS.
USGSFelt by 49 people · community intensity III (weak)Shaking IIIShallow (0–70 km)Automatic solution — subject to revision
Updated 2026-09-17 20:46 UTC
The full record
- Magnitude
- M 3.1 · local (Richter) magnitude
- Location
- 4 km SSE of Compton, CA
- Local time at the epicentre
- Sep 17, 2026, 01:32 PM — PDT, UTC-7
- Time (UTC)
- 2026-09-17 20:32 UTC
- Depth
- 13.2 km · Shallow (0–70 km)
- Coordinates
- 33.865, -118.209
- Felt reports
- Felt by 49 people · community intensity III (weak)
- Estimated shaking
- III · Weak
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 162 / 1000 · routine event
- Solution quality
- 118 seismic stations used · 48° azimuthal gap (well-constrained epicentre)
- Review status
- Automatic solution — subject to revision
- Catalog
- USGS
Epicentre and nearby recent earthquakes
The highlighted circle is this earthquake. Smaller circles are other events recorded nearby in the last 30 days.
What the shaking was like
Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
Estimated instrumental shaking III (Weak): Felt indoors; hanging objects swing, like a passing truck.
People who reported it described intensity III (Weak): Felt indoors; hanging objects swing, like a passing truck.
Felt it yourself? USGS collects first-hand reports through “Did You Feel It?”, and those reports are what produce the community intensity above.
Who lives nearby
About 9,685,380 people live in towns within 30 km of the epicentre, and 18,898,535 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Compton | 3.6 km NNW | 98,462 |
| East Rancho Dominguez | 3.9 km NNE | 15,135 |
| Paramount | 5.3 km ENE | 55,412 |
| West Rancho Dominguez | 6.5 km WNW | 5,669 |
| Lakewood | 7.0 km E | 81,611 |
| Willowbrook | 7.2 km NW | 35,983 |
| Lynwood | 7.3 km N | 71,989 |
| Carson | 7.7 km WSW | 93,281 |
| Signal Hill | 7.7 km SSE | 11,565 |
| Bellflower | 8.7 km ENE | 78,441 |
Earthquake history in this area
12 earthquakes of magnitude 4.5+ have been recorded within 200 km of this epicentre since 1960, in California.
Other earthquakes near this epicentre
8 other events within 100 km in the last 30 days.
Be first to know about the next earthquake near 4 km SSE of Compton, CA
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Frequently asked questions
How strong was the 4 km SSE of Compton, CA earthquake?
Magnitude 3.1 (local (Richter) magnitude), at a depth of 13.2 km. Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
Exactly when did it happen?
Sep 17, 2026, 01:32 PM (local time at the epicentre — PDT, UTC-7). In universal time: 2026-09-17 20:32 UTC.
Was it felt?
Felt by 49 people · community intensity III (weak). Felt indoors; hanging objects swing, like a passing truck.
Was there a tsunami warning?
No tsunami evaluation was flagged for this earthquake.
Which towns are closest to the epicentre?
The closest is Compton, 3.6 km NNW (population 98,462).
Are earthquakes normal in this area?
Yes. The largest earthquake recorded within 200 km since 1960 was magnitude 7.3 (The 1992 Landers, California Earthquake, 1992), and 8 further events were recorded within 100 km in the last 30 days.
How do I get alerts for the next earthquake here?
Install the free SeismoWatch Android app, draw a box over this area, set a minimum magnitude, and turn alerts on.
About this page
Event data: U.S. Geological Survey (USGS), the European-Mediterranean Seismological Centre (EMSC) and, in Venezuela, FUNVISIS. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.