California earthquakes

M3.4 earthquake 33km NW of Ludlow, CA

A magnitude 3.4 earthquake struck 33km NW of Ludlow, CA on Sat, Sep 9, 1950, 2:05 PM GMT-7 (21:05 UTC), 6 km (4 mi) below the surface.

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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
3.4 (ml), minor
Local time
UTC
1950-09-09 21:05:29 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.910° N, 116.442° 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 2.5 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
226°, poorly surrounded by stations
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 8 in the 30 days before it.

After

  1. 2.87km S of Big Bear Lake, CA · 27750 days ago · 6 km deep · 91 km away
  2. 2.820km WSW of Ludlow, CA · 27747 days ago · 6 km deep · 32 km away
  3. 2.417km NNE of Big Bear City, CA · 27737 days ago · 6 km deep · 65 km away
  4. 2.610km NNW of Yucca Valley, CA · 27731 days ago · 6 km deep · 80 km away
  5. 3.214km NNW of Morongo Valley, CA · 27720 days ago · 6 km deep · 85 km away

Before

  1. 2.34km ESE of Big Bear Lake, CA · 27778 days ago · 6 km deep · 86 km away
  2. 4.119km NE of Barstow, CA · 27782 days ago · 6 km deep · 42 km away
  3. 3.145km NNW of Fort Irwin, CA · 27783 days ago · 6 km deep · 90 km away
  4. 3.36km N of Big Bear City, CA · 27783 days ago · 6 km deep · 76 km away
  5. 2.64km N of Big Bear Lake, CA · 27784 days ago · 6 km deep · 82 km away
  6. 4.07km NNE of Big Bear City, CA · 27784 days ago · 6 km deep · 74 km away
  7. 2.69km SSE of Big Bear City, CA · 27797 days ago · 7 km deep · 87 km away
  8. 4.17km NNE of Big Bear City, CA · 27800 days ago · 6 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3342452. Read Tue, Sep 22, 2026, 10:19 AM UTC.