California earthquakes

M1.5 earthquake 2 km WSW of Cupertino, California

A magnitude 1.5 earthquake struck 2 km WSW of Cupertino, California on Sat, Feb 14, 1981, 3:41 AM PST (11:41 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M1.7 3 km SW of San Bruno, 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
1.5 (md), micro
Local time
UTC
1981-02-14 11:41:08 UTC
Depth
3.6 km (2.3 mi), shallow
Epicenter
37.314° N, 122.059° 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 0.7 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
170°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 165 in the 60 days after this one and 9 in the 30 days before it.

After

The first 60 of 165.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1060351. Read Tue, Sep 22, 2026, 9:18 PM UTC.