California earthquakes

M3.3 earthquake 48km WSW of Carlsbad, CA

A magnitude 3.3 earthquake struck 48km WSW of Carlsbad, CA on Sun, Nov 9, 1986, 5:35 PM PST (01:35 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M3.7 48km WSW of Carlsbad, CA. This one was a foreshock.

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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
3.3 (ml), minor
Local time
UTC
1986-11-10 01:35:12 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
32.962° N, 117.803° 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
195°, poorly surrounded by stations
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: 172 in the 60 days after this one and 19 in the 30 days before it.

After

The first 60 of 172.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci712721 (also filed as usp0002zv3). Read Tue, Sep 22, 2026, 9:17 AM UTC.