California earthquakes

M2.9 earthquake 18km NNW of Santa Cruz Is. (E end), CA

A magnitude 2.9 earthquake struck 18km NNW of Santa Cruz Is. (E end), CA on Sat, Aug 2, 1941, 4:31 AM GMT-8 (12:31 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.1 20km SSW of Santa Barbara, CA. 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: 2.9 (ml), micro
Local time: Sat, Aug 2, 1941, 4:31 AM GMT-8
UTC: 1941-08-02 12:31:17 UTC
Depth: 6.0 km (3.7 mi), shallow
Epicenter: 34.175° N, 119.615° W
Region: California
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 7.4 km horizontally, 20.2 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 104°
Stations used: 3

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3365708. Read Tue, Sep 22, 2026, 7:45 AM UTC.