California earthquakes

M3.0 earthquake 9 km E of Cleone, California

A magnitude 3.0 earthquake struck 9 km E of Cleone, California on Sun, Nov 8, 1987, 6:50 PM PST (02:50 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.4 36 km NW of Paskenta, California. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.0 (ML, local (Richter)), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1987-11-09 02:50:34 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
39.497° N, 123.675° W
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.0ML, local (Richter)Northern California Seismic SystemPreferred · Final · 6 stations
2.9ML, local (Richter)USGS National Earthquake Information CenterReviewed

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.4 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
287°, poorly surrounded by stations
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 17 in the 30 days before it.

After

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc108177 (also filed as usp00039zw). Read Fri, Oct 2, 2026, 12:05 PM UTC.