California earthquakes

M4.3 earthquake 6km WNW of Grapevine, CA

A magnitude 4.3 earthquake struck 6km WNW of Grapevine, CA on Fri, Jan 14, 1955, 5:03 PM GMT-8 (01:03 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 26km NE of Arvin, CA. This one was a foreshock.

Lake of the Woods forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.3 (ml), light
Local time
UTC
1955-01-15 01:03:06 UTC
Depth
9.6 km (5.9 mi), shallow
Epicenter
34.955° N, 118.992° 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, 1.2 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
91°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 11 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3298015. Read Tue, Sep 22, 2026, 11:19 AM UTC.