California earthquakes

M2.9 earthquake 15km NW of Morongo Valley, CA

A magnitude 2.9 earthquake struck 15km NW of Morongo Valley, CA on Fri, Sep 23, 1977, 7:26 AM PDT (14:26 UTC), 2 km (2 mi) below the surface.

A larger quake followed: M3.4 19km N 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
2.9 (ml), micro
Local time
UTC
1977-09-23 14:26:19 UTC
Depth
2.5 km (1.5 mi), shallow
Epicenter
34.161° N, 116.676° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
41°
Stations used
52

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.837km SW of Ludlow, CA · 17889 days ago · 3 km deep · 44 km away
  2. 1.77km SSW of Morongo Valley, CA · 17889 days ago · 12 km deep · 20 km away
  3. 3.419km N of Twentynine Palms, CA · 17889 days ago · 0 km deep · 60 km away
  4. 1.58km W of Palm Springs, CA · 17889 days ago · 15 km deep · 38 km away
  5. 1.611km NW of Anza, CA · 17888 days ago · 12 km deep · 59 km away
  6. 1.520km NNW of Joshua Tree, CA · 17888 days ago · 6 km deep · 33 km away
  7. 1.511km SE of Anza, CA · 17888 days ago · 12 km deep · 76 km away
  8. 1.89km WNW of Morongo Valley, CA · 17887 days ago · 7 km deep · 8 km away
  9. 2.26km ENE of Cabazon, CA · 17887 days ago · 16 km deep · 25 km away
  10. 1.918km N of Joshua Tree, CA · 17886 days ago · 4 km deep · 34 km away
  11. 1.57km WSW of Big Bear Lake, CA · 17886 days ago · 13 km deep · 29 km away
  12. 1.54km SW of Pinon Hills, CA · 17886 days ago · 7 km deep · 96 km away
  13. 1.79km NNW of Cabazon, CA · 17886 days ago · 10 km deep · 22 km away
  14. 3.09km WNW of San Jacinto, CA · 17884 days ago · 12 km deep · 51 km away
  15. 2.09km NE of Lake Arrowhead, CA · 17884 days ago · 4 km deep · 44 km away
  16. 1.65km SE of Valle Vista, CA · 17884 days ago · 15 km deep · 52 km away
  17. 1.58km WSW of Beaumont, CA · 17884 days ago · 13 km deep · 45 km away
  18. 1.88km N of Cabazon, CA · 17884 days ago · 15 km deep · 22 km away
  19. 2.611km NW of Big Bear Lake, CA · 17884 days ago · 3 km deep · 35 km away
  20. 1.57km SSW of Morongo Valley, CA · 17884 days ago · 12 km deep · 21 km away
  21. 1.57km SE of Valle Vista, CA · 17883 days ago · 18 km deep · 53 km away
  22. 1.710km NE of Indio, CA · 17883 days ago · 7 km deep · 64 km away
  23. 1.76km SSW of Banning, CA · 17883 days ago · 13 km deep · 38 km away
  24. 2.09km NE of Lake Arrowhead, CA · 17882 days ago · 6 km deep · 44 km away
  25. 1.56km WSW of Idyllwild, CA · 17882 days ago · 16 km deep · 50 km away
  26. 1.522km SSE of Twentynine Palms, CA · 17882 days ago · 7 km deep · 69 km away
  27. 2.011km NNE of Cabazon, CA · 17882 days ago · 16 km deep · 18 km away
  28. 1.68km N of Cabazon, CA · 17882 days ago · 9 km deep · 22 km away
  29. 2.720km E of Barstow, CA · 17881 days ago · 0 km deep · 87 km away
  30. 1.84km WSW of Devore, CA · 17881 days ago · 9 km deep · 70 km away
  31. 1.518km ENE of Big Bear City, CA · 17880 days ago · 3 km deep · 16 km away
  32. 2.41km SE of Loma Linda, CA · 17880 days ago · 15 km deep · 55 km away
  33. 2.210km SW of Anza, CA · 17880 days ago · 6 km deep · 75 km away
  34. 1.514km SSW of Wrightwood, CA · 17880 days ago · 6 km deep · 93 km away
  35. 1.612km NNE of Cabazon, CA · 17879 days ago · 11 km deep · 17 km away
  36. 1.52km NNE of Loma Linda, CA · 17878 days ago · 16 km deep · 54 km away
  37. 1.810km SE of Anza, CA · 17878 days ago · 6 km deep · 76 km away
  38. 1.718km NNW of Joshua Tree, CA · 17877 days ago · 1 km deep · 33 km away
  39. 2.639km NE of Big Bear City, CA · 17877 days ago · 4 km deep · 39 km away
  40. 1.817km NNW of Joshua Tree, CA · 17877 days ago · 2 km deep · 32 km away
  41. 1.518km NNW of Joshua Tree, CA · 17877 days ago · 0 km deep · 33 km away
  42. 1.715km E of Desert Hot Springs, CA · 17876 days ago · 1 km deep · 38 km away
  43. 1.916km N of Joshua Tree, CA · 17876 days ago · 3 km deep · 34 km away
  44. 1.57km NNE of Banning, CA · 17876 days ago · 17 km deep · 25 km away
  45. 1.610km NW of Warner Springs, CA · 17873 days ago · 14 km deep · 89 km away
  46. 1.76km NNE of Fontana, CA · 17873 days ago · 4 km deep · 69 km away
  47. 1.511km N of Running Springs, CA · 17873 days ago · 8 km deep · 41 km away
  48. 1.74km SE of Loma Linda, CA · 17873 days ago · 18 km deep · 54 km away
  49. 2.22km NNW of Fontana, CA · 17872 days ago · 3 km deep · 73 km away
  50. 1.52km NNW of Fontana, CA · 17872 days ago · 5 km deep · 73 km away
  51. 1.99km S of Yucca Valley, CA · 17872 days ago · 8 km deep · 26 km away
  52. 1.75km ENE of Cabazon, CA · 17872 days ago · 14 km deep · 26 km away
  53. 1.82km SW of Running Springs, CA · 17871 days ago · 5 km deep · 42 km away
  54. 1.513km SSE of Joshua Tree, CA · 17871 days ago · 4 km deep · 42 km away
  55. 1.59km NE of Running Springs, CA · 17871 days ago · 3 km deep · 35 km away
  56. 2.017km ESE of Lucerne Valley, CA · 17870 days ago · 3 km deep · 30 km away
  57. 2.310km ENE of Adelanto, CA · 17870 days ago · 0 km deep · 78 km away
  58. 1.716km ESE of Lucerne Valley, CA · 17870 days ago · 4 km deep · 30 km away
  59. 1.58km WNW of Garnet, CA · 17869 days ago · 13 km deep · 26 km away
  60. 1.54km WSW of Redlands, CA · 17869 days ago · 15 km deep · 52 km away

The first 60 of 146.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3334883. Read Tue, Sep 22, 2026, 9:41 AM UTC.