California earthquakes

M2.9 earthquake 40km WSW of Encinitas, CA

A magnitude 2.9 earthquake struck 40km WSW of Encinitas, CA on Tue, Jun 9, 1987, 4:43 AM PDT (11:43 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M3.6 4km SSE of San Pedro, 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
2.9 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1987-06-09 11:43:53 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
32.959° N, 117.705° 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
186°, 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: 98 in the 60 days after this one and 58 in the 30 days before it.

After

The first 60 of 98.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci723640. Read Fri, Oct 2, 2026, 3:08 PM UTC.