California earthquakes

M2.8 earthquake 12km ESE of Barstow, CA

A magnitude 2.8 earthquake struck 12km ESE of Barstow, CA on Sun, Jul 3, 1949, 8:43 PM GMT-8 (04:43 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.0 2km W of Johannesburg, CA. 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
2.8 (ml), micro
Local time
UTC
1949-07-04 04:43:22 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.853° N, 116.909° 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 2.3 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
301°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.88km E of Lucerne Valley, CA · 28198 days ago · 6 km deep · 45 km away
  2. 3.02km W of Johannesburg, CA · 28196 days ago · 6 km deep · 89 km away
  3. 3.411km W of Johannesburg, CA · 28196 days ago · 6 km deep · 96 km away
  4. 3.01km NNE of Johannesburg, CA · 28193 days ago · 6 km deep · 88 km away
  5. 2.917km ENE of Barstow, CA · 28192 days ago · 6 km deep · 15 km away
  6. 3.04km SSW of Redlands, CA · 28192 days ago · 14 km deep · 96 km away
  7. 3.111km W of Morongo Valley, CA · 28182 days ago · 6 km deep · 92 km away
  8. 2.510km ESE of Barstow, CA · 28178 days ago · 6 km deep · 3 km away
  9. 3.032km E of Barstow, CA · 28177 days ago · 6 km deep · 22 km away
  10. 3.239km E of Barstow, CA · 28173 days ago · 6 km deep · 29 km away
  11. 3.038km NW of Ludlow, CA · 28161 days ago · 6 km deep · 42 km away
  12. 3.45km S of Redlands, CA · 28160 days ago · 15 km deep · 97 km away
  13. 3.74km N of Banning, CA · 28158 days ago · 12 km deep · 99 km away
  14. 2.642km WSW of Tecopa, CA · 28147 days ago · 6 km deep · 98 km away
  15. 2.93km N of Colton, CA · 28146 days ago · 15 km deep · 92 km away

Before

  1. 3.13km NNW of Colton, CA · 28205 days ago · 17 km deep · 92 km away
  2. 2.73km NNE of Yucca Valley, CA · 28216 days ago · 6 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3355820. Read Tue, Sep 22, 2026, 12:19 PM UTC.