California earthquakes

M2.1 earthquake 2km N of Corona, CA

A magnitude 2.1 earthquake struck 2km N of Corona, CA on Tue, Dec 20, 1983, 2:10 AM PST (10:10 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.3 4km ENE of Yorba Linda, CA. This one was a foreshock.

Corona 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
2.1 (mc), micro
Local time
UTC
1983-12-20 10:10:31 UTC
Depth
7.8 km (4.8 mi), shallow
Epicenter
33.892° N, 117.568° 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 0.5 km horizontally, 2.3 km in depth
Depth from
From location
Station coverage gap
106°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 163 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.34km ENE of Yorba Linda, CA · 15591 days ago · 5 km deep · 18 km away
  2. 2.87km ESE of Yucaipa, CA · 15590 days ago · 19 km deep · 56 km away
  3. 1.710km NNE of Cabazon, CA · 15590 days ago · 11 km deep · 78 km away
  4. 1.53km NNE of Colton, CA · 15590 days ago · 6 km deep · 34 km away
  5. 1.811km NE of Cabazon, CA · 15590 days ago · 15 km deep · 80 km away
  6. 2.616km NE of Lucerne Valley, CA · 15589 days ago · 4 km deep · 98 km away
  7. 2.616km NE of Lucerne Valley, CA · 15589 days ago · 4 km deep · 99 km away
  8. 2.416km NE of Lucerne Valley, CA · 15589 days ago · 4 km deep · 98 km away
  9. 1.717km NE of Lucerne Valley, CA · 15589 days ago · 0 km deep · 99 km away
  10. 2.117km NE of Lucerne Valley, CA · 15589 days ago · 1 km deep · 99 km away
  11. 1.98km S of Idyllwild, CA · 15588 days ago · 13 km deep · 83 km away
  12. 1.90km ESE of Loma Linda, CA · 15588 days ago · 15 km deep · 33 km away
  13. 1.86km SSE of Idyllwild, CA · 15588 days ago · 16 km deep · 83 km away
  14. 1.99km NE of Aguanga, CA · 15588 days ago · 3 km deep · 83 km away
  15. 2.010km SW of Morongo Valley, CA · 15588 days ago · 14 km deep · 85 km away
  16. 2.117km NE of Lucerne Valley, CA · 15588 days ago · -2 km deep · 99 km away
  17. 2.016km NE of Lucerne Valley, CA · 15588 days ago · 0 km deep · 99 km away
  18. 2.017km NE of Lucerne Valley, CA · 15588 days ago · -2 km deep · 99 km away
  19. 1.58km NE of Idyllwild, CA · 15588 days ago · 12 km deep · 84 km away
  20. 1.79km SW of Wrightwood, CA · 15587 days ago · 5 km deep · 49 km away
  21. 2.514km S of San Pedro, CA · 15587 days ago · 4 km deep · 74 km away
  22. 1.98km SSW of Idyllwild, CA · 15586 days ago · 17 km deep · 80 km away
  23. 1.75km SSW of Littlerock, CA · 15586 days ago · 6 km deep · 77 km away
  24. 2.23km S of Mentone, CA · 15586 days ago · 7 km deep · 43 km away
  25. 1.512km NNE of Cabazon, CA · 15586 days ago · 16 km deep · 79 km away
  26. 1.75km WSW of Anaheim, CA · 15586 days ago · 5 km deep · 35 km away
  27. 2.31km SSW of Muscoy, CA · 15585 days ago · 5 km deep · 35 km away
  28. 2.46km ESE of Ontario, CA · 15585 days ago · 7 km deep · 16 km away
  29. 1.810km W of Anza, CA · 15585 days ago · 3 km deep · 83 km away
  30. 1.66km NE of Cabazon, CA · 15585 days ago · 16 km deep · 77 km away
  31. 1.98km WSW of Anza, CA · 15585 days ago · 1 km deep · 86 km away
  32. 1.83km SSW of Mentone, CA · 15585 days ago · 8 km deep · 43 km away
  33. 1.93km NW of Fontana, CA · 15585 days ago · 7 km deep · 27 km away
  34. 1.813km NE of Lucerne Valley, CA · 15585 days ago · -1 km deep · 96 km away
  35. 1.51km NW of Cabazon, CA · 15585 days ago · 12 km deep · 72 km away
  36. 1.73km SSW of Mentone, CA · 15584 days ago · 6 km deep · 43 km away
  37. 1.911km NNE of Cabazon, CA · 15584 days ago · 16 km deep · 77 km away
  38. 2.23km S of Mentone, CA · 15584 days ago · 6 km deep · 43 km away
  39. 2.33km S of Mentone, CA · 15584 days ago · 6 km deep · 43 km away
  40. 1.73km S of Mentone, CA · 15584 days ago · 8 km deep · 43 km away
  41. 2.117km NW of Morongo Valley, CA · 15584 days ago · 8 km deep · 83 km away
  42. 1.62km E of Anza, CA · 15584 days ago · 10 km deep · 93 km away
  43. 2.05km WSW of Idyllwild, CA · 15584 days ago · 17 km deep · 76 km away
  44. 1.913km E of Aguanga, CA · 15584 days ago · 13 km deep · 93 km away
  45. 2.210km W of Lytle Creek, CA · 15584 days ago · 4 km deep · 42 km away
  46. 2.86km NNE of Banning, CA · 15584 days ago · 14 km deep · 67 km away
  47. 1.79km SW of Morongo Valley, CA · 15583 days ago · 11 km deep · 85 km away
  48. 1.79km NNE of Cabazon, CA · 15583 days ago · 13 km deep · 76 km away
  49. 2.09km NE of San Jacinto, CA · 15583 days ago · 16 km deep · 63 km away
  50. 1.78km NE of Nuevo, CA · 15582 days ago · 11 km deep · 44 km away
  51. 1.95km E of Yucaipa, CA · 15582 days ago · 10 km deep · 56 km away
  52. 2.15km NE of Lake Elsinore, CA · 15581 days ago · 9 km deep · 33 km away
  53. 2.410km W of Camp Pendleton South, CA · 15580 days ago · 13 km deep · 72 km away
  54. 2.16km NE of Banning, CA · 15580 days ago · 15 km deep · 68 km away
  55. 1.74km ESE of Vincent, CA · 15579 days ago · 10 km deep · 81 km away
  56. 2.28km NW of Anza, CA · 15579 days ago · 12 km deep · 83 km away
  57. 2.36km N of Lytle Creek, CA · 15579 days ago · 13 km deep · 48 km away
  58. 2.03km S of Mentone, CA · 15579 days ago · 7 km deep · 44 km away
  59. 2.311km NNE of Cabazon, CA · 15579 days ago · 14 km deep · 77 km away
  60. 2.212km S of Las Flores, CA · 15579 days ago · 11 km deep · 98 km away

The first 60 of 163.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci27708. Read Wed, Sep 23, 2026, 5:18 AM UTC.