California earthquakes

M1.9 earthquake 11 km NE of Big Pine, California

A magnitude 1.9 earthquake struck 11 km NE of Big Pine, California on Wed, Jan 4, 1984, 10:03 AM PST (18:03 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.3 12 km SW of Aspen Springs, 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
1.9 (md), micro
Local time
UTC
1984-01-04 18:03:59 UTC
Depth
8.4 km (5.2 mi), shallow
Epicenter
37.235° N, 118.191° 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 4.1 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
311°, poorly surrounded by stations
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 169 in the 60 days after this one and 30 in the 30 days before it.

After

The first 60 of 169.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc602 (also filed as ci28426). Read Tue, Sep 22, 2026, 10:24 PM UTC.