California earthquakes

M1.7 earthquake 26km NNW of Tehachapi, CA

A magnitude 1.7 earthquake struck 26km NNW of Tehachapi, CA on Fri, Jul 20, 1984, 11:05 PM PDT (06:05 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.0 20km NNW of Tehachapi, 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
1.7 (mc), micro
Local time
UTC
1984-07-21 06:05:48 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
35.349° N, 118.570° 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
0°
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: 100 in the 60 days after this one and 65 in the 30 days before it.

After

The first 60 of 100.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci45969. Read Tue, Sep 29, 2026, 10:22 AM UTC.