California earthquakes

M1.8 earthquake 70 km WNW of Samoa, California

A magnitude 1.8 earthquake struck 70 km WNW of Samoa, California on Tue, Jun 24, 1980, 7:12 PM PDT (02:12 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.4 132 km W of Ferndale, California. 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-06-25 02:12:39 UTC
Depth
4.6 km (2.8 mi), shallow
Epicenter
41.013° N, 124.981° 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.

Location uncertainty
About 5.3 km horizontally, 4.5 km in depth
Depth from
From location
Station coverage gap
316°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 70.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1054004. Read Sat, Oct 3, 2026, 5:24 PM UTC.