California earthquakes

M3.1 earthquake 4 km SSE of Compton, CA

A magnitude 3.1 earthquake struck 4 km SSE of Compton, CA on Sun, Sep 6, 2026, 12:13 AM PDT (07:13 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.3 26 km ESE of Avalon, CA. This one was a foreshock.

Compton forecast More in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Sun, Sep 6, 2026, 12:13 AM PDT
UTC: 2026-09-06 07:13:11 UTC
Depth: 15.8 km (9.8 mi), shallow
Epicenter: 33.864° N, 118.209° W
Region: California
Felt reports: 1,125
Strongest shaking: III, weak shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: III, weak shaking
Peak ground acceleration: 0.7% of gravity
Peak ground velocity: 0.2 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

1,125 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty: ±0.20
Depth from: From location
Station coverage gap: 39°
Stations used: 146

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 55 since this one and 46 in the 30 days before it.

After

Before

Earthquakes today California earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci41542024 (also filed as us7000tene). Read Tue, Sep 22, 2026, 4:15 AM UTC.