California earthquakes

M4.6 earthquake 18km NW of Grapevine, CA

A magnitude 4.6 earthquake struck 18km NW of Grapevine, CA on Sat, Feb 6, 1954, 4:09 PM GMT-8 (00:09 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.6 10km NNE of Pine Mountain Club, CA. This one was a foreshock.

Pine Mountain Club 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
4.6 (ml), light
Local time
UTC
1954-02-07 00:09:53 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
35.045° N, 119.082° W
Strongest shaking
VI, strong shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
VI, strong shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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 1.2 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
83°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 39 in the 60 days after this one and 48 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3301253. Read Tue, Sep 22, 2026, 10:17 AM UTC.