California earthquakes

M1.5 earthquake 3km NNW of Palomar Observatory, CA

A magnitude 1.5 earthquake struck 3km NNW of Palomar Observatory, CA on Sun, Dec 26, 2021, 5:28 PM PST (01:28 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.0 5km WSW of Palomar Observatory, 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
1.5 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-12-27 01:28:37 UTC
Depth
5.2 km (3.2 mi), shallow
Epicenter
33.377° N, 116.878° 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 0.2 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
25°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 151 in the 60 days after this one and 69 in the 30 days before it.

After

  1. 2.210km N of Borrego Springs, CA · 1743 days ago · 12 km deep · 45 km away
  2. 1.917km ESE of Julian, CA · 1742 days ago · 10 km deep · 56 km away
  3. 1.716km E of Ocotillo Wells, CA · 1742 days ago · 9 km deep · 90 km away
  4. 2.913km N of Indio, CA · 1742 days ago · 9 km deep · 81 km away · felt by 50
  5. 1.56km E of Ocotillo Wells, CA · 1742 days ago · 10 km deep · 80 km away
  6. 2.022km SSW of La Quinta, CA · 1741 days ago · 9 km deep · 44 km away
  7. 1.718km WSW of La Jolla, CA · 1740 days ago · 13 km deep · 85 km away
  8. 2.03km NNW of Palomar Observatory, CA · 1740 days ago · 5 km deep · 0 km away · felt by 1
  9. 1.814km SE of Anza, CA · 1740 days ago · 10 km deep · 28 km away
  10. 1.910km W of Palomar Observatory, CA · 1739 days ago · 8 km deep · 9 km away
  11. 1.69km W of Palomar Observatory, CA · 1739 days ago · 6 km deep · 8 km away
  12. 2.010km E of Pala, CA · 1739 days ago · 7 km deep · 9 km away
  13. 3.02km NW of Palomar Observatory, CA · 1739 days ago · 5 km deep · 1 km away · felt by 27
  14. 1.83km NNW of Palomar Observatory, CA · 1739 days ago · 5 km deep · 0 km away
  15. 2.62km NW of Palomar Observatory, CA · 1739 days ago · 5 km deep · 0 km away · felt by 2
  16. 1.93km NNW of Palomar Observatory, CA · 1739 days ago · 6 km deep · 0 km away
  17. 1.75km N of Cabazon, CA · 1739 days ago · 12 km deep · 65 km away
  18. 3.43km SW of Redlands, CA · 1739 days ago · 14 km deep · 79 km away · felt by 509
  19. 2.12km NNW of Palomar Observatory, CA · 1738 days ago · 5 km deep · 1 km away
  20. 1.63km W of Redlands, CA · 1738 days ago · 14 km deep · 81 km away
  21. 1.612km NE of Ocotillo Wells, CA · 1738 days ago · 10 km deep · 79 km away
  22. 1.614km SSE of Valle Vista, CA · 1737 days ago · 13 km deep · 29 km away
  23. 1.810km S of Idyllwild, CA · 1736 days ago · 15 km deep · 33 km away
  24. 2.410km SSW of Idyllwild, CA · 1736 days ago · 15 km deep · 33 km away
  25. 1.62km NNW of Palomar Observatory, CA · 1736 days ago · 5 km deep · 0 km away
  26. 1.81km WSW of Valle Vista, CA · 1735 days ago · 5 km deep · 41 km away
  27. 1.914km NNE of Borrego Springs, CA · 1735 days ago · 11 km deep · 54 km away
  28. 1.716km NE of Borrego Springs, CA · 1735 days ago · 12 km deep · 60 km away
  29. 1.716km S of San Clemente, CA · 1734 days ago · 11 km deep · 67 km away
  30. 1.712km N of Borrego Springs, CA · 1733 days ago · 2 km deep · 48 km away
  31. 1.812km N of Borrego Springs, CA · 1733 days ago · 4 km deep · 49 km away
  32. 1.730km WSW of La Jolla, CA · 1732 days ago · 16 km deep · 96 km away · felt by 1
  33. 2.03km NW of Palomar Observatory, CA · 1730 days ago · 5 km deep · 0 km away
  34. 3.23km NW of Palomar Observatory, CA · 1730 days ago · 5 km deep · 1 km away · felt by 67
  35. 1.92km NNW of Palomar Observatory, CA · 1730 days ago · 6 km deep · 0 km away
  36. 2.13km NW of Palomar Observatory, CA · 1730 days ago · 5 km deep · 1 km away
  37. 2.22km NW of Palomar Observatory, CA · 1730 days ago · 5 km deep · 1 km away · felt by 1
  38. 2.012km SSW of Salton City, CA · 1730 days ago · 8 km deep · 82 km away · felt by 1
  39. 1.615km E of Ocotillo Wells, CA · 1730 days ago · 9 km deep · 87 km away · felt by 1
  40. 1.711km NNE of Ocotillo Wells, CA · 1730 days ago · 10 km deep · 76 km away
  41. 1.610km NW of Anza, CA · 1730 days ago · 16 km deep · 31 km away
  42. 1.97km NNE of Borrego Springs, CA · 1728 days ago · 12 km deep · 51 km away
  43. 2.612km N of Borrego Springs, CA · 1727 days ago · 3 km deep · 48 km away · felt by 2
  44. 2.010km NNE of Ocotillo Wells, CA · 1727 days ago · 11 km deep · 76 km away
  45. 1.91km SE of Loma Linda, CA · 1727 days ago · 15 km deep · 81 km away · felt by 1
  46. 3.923km ESE of Anza, CA · 1726 days ago · 14 km deep · 42 km away · felt by 2,570
  47. 2.424km SSW of La Quinta, CA · 1726 days ago · 15 km deep · 43 km away · felt by 59
  48. 2.224km ESE of Anza, CA · 1726 days ago · 15 km deep · 42 km away
  49. 2.024km SSW of La Quinta, CA · 1726 days ago · 14 km deep · 43 km away
  50. 2.023km SSW of La Quinta, CA · 1726 days ago · 14 km deep · 43 km away · felt by 6
  51. 2.324km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 4
  52. 1.924km SSW of La Quinta, CA · 1726 days ago · 14 km deep · 43 km away
  53. 1.823km ESE of Anza, CA · 1726 days ago · 14 km deep · 42 km away · felt by 1
  54. 2.923km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 197
  55. 1.723km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away
  56. 2.123km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 21
  57. 1.724km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 18
  58. 1.723km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 35
  59. 2.023km ESE of Anza, CA · 1726 days ago · 12 km deep · 42 km away · felt by 20
  60. 1.823km ESE of Anza, CA · 1726 days ago · 13 km deep · 42 km away · felt by 7

The first 60 of 151.

Before

  1. 1.910km S of Big Bear City, CA · 1744 days ago · 7 km deep · 89 km away
  2. 1.511km SSW of Borrego Springs, CA · 1745 days ago · 13 km deep · 47 km away
  3. 2.111km SSW of Borrego Springs, CA · 1745 days ago · 12 km deep · 47 km away
  4. 1.612km SSW of Borrego Springs, CA · 1745 days ago · 14 km deep · 47 km away
  5. 1.811km NNE of Banning, CA · 1745 days ago · 18 km deep · 72 km away
  6. 2.03km NW of Palomar Observatory, CA · 1747 days ago · 5 km deep · 0 km away
  7. 1.717km NNE of Indio, CA · 1747 days ago · 4 km deep · 86 km away
  8. 2.03km NW of Palomar Observatory, CA · 1747 days ago · 5 km deep · 1 km away
  9. 3.13km NW of Palomar Observatory, CA · 1747 days ago · 5 km deep · 1 km away · felt by 37
  10. 1.77km SE of Valle Vista, CA · 1747 days ago · 15 km deep · 37 km away · felt by 1
  11. 1.76km E of Calimesa, CA · 1747 days ago · 17 km deep · 70 km away
  12. 2.13km NNW of Palomar Observatory, CA · 1747 days ago · 6 km deep · 0 km away
  13. 2.13km NW of Palomar Observatory, CA · 1747 days ago · 6 km deep · 1 km away
  14. 2.13km NW of Palomar Observatory, CA · 1747 days ago · 5 km deep · 0 km away
  15. 2.511km ENE of Borrego Springs, CA · 1747 days ago · 5 km deep · 59 km away · felt by 3
  16. 2.73km NW of Palomar Observatory, CA · 1748 days ago · 5 km deep · 0 km away · felt by 53
  17. 1.78km SSE of Redlands, CA · 1748 days ago · 11 km deep · 73 km away
  18. 2.13km NNW of Palomar Observatory, CA · 1748 days ago · 5 km deep · 0 km away
  19. 1.86km ESE of Valle Vista, CA · 1749 days ago · 16 km deep · 38 km away
  20. 1.97km ESE of Cabazon, CA · 1749 days ago · 16 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci39896895. Read Mon, Oct 5, 2026, 9:26 AM UTC.