California earthquakes

M1.9 earthquake 3km NNE of Carson, CA

A magnitude 1.9 earthquake struck 3km NNE of Carson, CA on Sat, Jun 9, 1984, 8:12 AM PDT (15:12 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.4 4km NE of Moreno Valley, CA. This one was a foreshock.

Carson forecastMore in California

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

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The earthquake

Magnitude
1.9 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1984-06-09 15:12:54 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
33.854° N, 118.264° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
Operator assigned
Station coverage gap
0°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 137 in the 60 days after this one and 47 in the 30 days before it.

After

The first 60 of 137.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci41956. Read Fri, Oct 2, 2026, 8:57 PM UTC.