California earthquakes

M2.8 earthquake 16km NE of Grapevine, CA

A magnitude 2.8 earthquake struck 16km NE of Grapevine, CA on Wed, Feb 23, 1966, 2:00 PM GMT-8 (22:00 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.6 21km SSE of Bodfish, CA. This one was a foreshock.

Stallion Springs forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.8 (ml), micro
Local time
UTC
1966-02-23 22:00:13 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
35.042° N, 118.797° 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 3.5 km horizontally, 4.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
150°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 3.621km SSE of Bodfish, CA · 22112 days ago · 5 km deep · 52 km away
  2. 3.118km SSE of Bodfish, CA · 22108 days ago · 6 km deep · 58 km away
  3. 2.26km NW of Tehachapi, CA · 22106 days ago · 6 km deep · 32 km away
  4. 2.17km NNE of Castaic, CA · 22076 days ago · 16 km deep · 57 km away
  5. 2.720km NW of Grapevine, CA · 22074 days ago · 1 km deep · 28 km away

Before

  1. 2.416km NNW of Fillmore, CA · 22133 days ago · 6 km deep · 60 km away
  2. 2.81km SE of Valencia, CA · 22139 days ago · 6 km deep · 70 km away
  3. 2.521km NNW of Fillmore, CA · 22141 days ago · 1 km deep · 56 km away
  4. 3.023km ENE of Arvin, CA · 22144 days ago · 6 km deep · 34 km away
  5. 2.418km SSW of Gorman, CA · 22146 days ago · 6 km deep · 46 km away
  6. 2.722km NW of Tehachapi, CA · 22155 days ago · 6 km deep · 33 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3330251. Read Tue, Sep 22, 2026, 8:46 PM UTC.