California earthquakes

M2.7 earthquake 8km NNW of Morongo Valley, CA

A magnitude 2.7 earthquake struck 8km NNW of Morongo Valley, CA on Mon, Oct 31, 1949, 2:53 PM GMT-8 (22:53 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.1 38km SE of Twentynine Palms, CA. This one was a foreshock.

Morongo Valley 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
2.7 (ml), micro
Local time
UTC
1949-10-31 22:53:24 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.110° N, 116.623° 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 2.0 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
270°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 3.138km SE of Twentynine Palms, CA · 28084 days ago · 6 km deep · 82 km away
  2. 3.436km SE of Twentynine Palms, CA · 28084 days ago · 6 km deep · 81 km away
  3. 3.232km SE of Twentynine Palms, CA · 28072 days ago · 6 km deep · 77 km away
  4. 3.632km E of Barstow, CA · 28072 days ago · 6 km deep · 83 km away
  5. 2.64km NW of Running Springs, CA · 28064 days ago · 3 km deep · 50 km away
  6. 2.01km SE of Loma Linda, CA · 28061 days ago · 16 km deep · 59 km away
  7. 2.86km ENE of Desert Hot Springs, CA · 28061 days ago · 6 km deep · 22 km away
  8. 2.78km NE of Morongo Valley, CA · 28054 days ago · 6 km deep · 10 km away
  9. 3.13km SSE of Desert Hot Springs, CA · 28045 days ago · 6 km deep · 23 km away
  10. 2.934km WNW of Desert Center, CA · 28043 days ago · 6 km deep · 88 km away
  11. 3.138km SE of Twentynine Palms, CA · 28043 days ago · 6 km deep · 83 km away
  12. 2.938km WNW of Desert Center, CA · 28043 days ago · 6 km deep · 83 km away
  13. 2.64km ENE of San Jacinto, CA · 28043 days ago · 2 km deep · 44 km away
  14. 3.033km E of Barstow, CA · 28042 days ago · 6 km deep · 84 km away
  15. 3.112km N of Big Bear City, CA · 28040 days ago · 6 km deep · 36 km away
  16. 3.139km NW of Desert Center, CA · 28034 days ago · 6 km deep · 84 km away
  17. 3.327km SSE of Twentynine Palms, CA · 28033 days ago · 6 km deep · 64 km away

Before

  1. 2.826km NE of Coachella, CA · 28087 days ago · 6 km deep · 71 km away
  2. 2.65km W of Desert Hot Springs, CA · 28088 days ago · 6 km deep · 17 km away
  3. 3.031km SE of Twentynine Palms, CA · 28088 days ago · 6 km deep · 77 km away
  4. 3.011km ESE of Anza, CA · 28090 days ago · 5 km deep · 67 km away
  5. 2.810km NNE of Aguanga, CA · 28095 days ago · 0 km deep · 68 km away
  6. 2.69km NNE of Aguanga, CA · 28097 days ago · 1 km deep · 69 km away
  7. 3.46km NNW of Garnet, CA · 28099 days ago · 6 km deep · 19 km away
  8. 2.59km NE of Aguanga, CA · 28100 days ago · 6 km deep · 70 km away
  9. 2.821km ENE of Barstow, CA · 28101 days ago · 6 km deep · 97 km away
  10. 3.938km NW of Desert Center, CA · 28103 days ago · 6 km deep · 85 km away
  11. 2.69km WSW of Anza, CA · 28104 days ago · 0 km deep · 67 km away
  12. 2.93km S of Desert Hot Springs, CA · 28106 days ago · 6 km deep · 22 km away
  13. 3.334km SE of Twentynine Palms, CA · 28110 days ago · 6 km deep · 77 km away
  14. 2.88km N of Cabazon, CA · 28112 days ago · 6 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3355568. Read Tue, Sep 22, 2026, 12:18 PM UTC.