M1.8 earthquake 20km ESE of Anza, CA

Magnitude

1.8 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Dec 20, 1986, 8:41 AM PST

UTC

1986-12-20 16:41:35 UTC

Depth

7.5 km (4.6 mi), shallow

Epicenter

33.469° N, 116.480° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

86°

Stations used

0

• Anza, CaliforniaPopulation 3,014. Forecast20 kmESE
• La Quinta, CaliforniaPopulation 40,476. Forecast27 kmSW
• Temecula, CaliforniaPopulation 110,003. Forecast62 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast105 kmNE

After

1. 2.313km ESE of Anza, CASat, Dec 20, 10:07 AM PST · 14530 days ago · 10 km deep · 8 km away
2. 1.617km ESE of Anza, CASat, Dec 20, 4:17 PM PST · 14529 days ago · 12 km deep · 3 km away
3. 1.823km ESE of Anza, CASat, Dec 20, 6:31 PM PST · 14529 days ago · 15 km deep · 4 km away
4. 1.914km SE of Ocotillo Wells, CASat, Dec 20, 7:26 PM PST · 14529 days ago · 9 km deep · 63 km away
5. 2.01km NW of Moreno Valley, CASun, Dec 21, 1:21 AM PST · 14529 days ago · 5 km deep · 87 km away
6. 1.915km SSE of Big Bear City, CASun, Dec 21, 2:00 AM PST · 14529 days ago · 3 km deep · 79 km away
7. 2.113km ESE of Anza, CASun, Dec 21, 3:28 AM PST · 14529 days ago · 12 km deep · 8 km away
8. 1.810km N of Aguanga, CASun, Dec 21, 4:45 AM PST · 14529 days ago · 12 km deep · 36 km away
9. 2.013km ESE of Anza, CASun, Dec 21, 2:16 PM PST · 14528 days ago · 12 km deep · 8 km away
10. 2.79km NW of Garnet, CASun, Dec 21, 4:54 PM PST · 14528 days ago · 5 km deep · 56 km away
11. 2.39km NW of Garnet, CASun, Dec 21, 4:56 PM PST · 14528 days ago · 6 km deep · 56 km away
12. 1.623km SW of Ocotillo Wells, CASun, Dec 21, 5:42 PM PST · 14528 days ago · 8 km deep · 57 km away
13. 2.17km WNW of Desert Hot Springs, CAMon, Dec 22, 10:01 AM PST · 14528 days ago · 6 km deep · 57 km away
14. 1.78km S of Morongo Valley, CAMon, Dec 22, 10:42 AM PST · 14528 days ago · 7 km deep · 57 km away
15. 2.08km WSW of Morongo Valley, CAMon, Dec 22, 11:07 AM PST · 14528 days ago · 7 km deep · 64 km away
16. 1.613km ESE of Anza, CAMon, Dec 22, 3:42 PM PST · 14527 days ago · 12 km deep · 8 km away
17. 2.89km SW of Morongo Valley, CAMon, Dec 22, 8:31 PM PST · 14527 days ago · 6 km deep · 59 km away
18. 2.21km E of Borrego Springs, CAMon, Dec 22, 9:56 PM PST · 14527 days ago · 8 km deep · 26 km away
19. 2.28km NNE of Yucaipa, CATue, Dec 23, 1:53 AM PST · 14527 days ago · 2 km deep · 85 km away
20. 1.82km N of Garnet, CATue, Dec 23, 2:57 AM PST · 14527 days ago · 2 km deep · 51 km away
21. 1.62km NNW of Garnet, CATue, Dec 23, 3:15 AM PST · 14527 days ago · 2 km deep · 51 km away
22. 2.312km WSW of Morongo Valley, CATue, Dec 23, 10:44 AM PST · 14527 days ago · 8 km deep · 61 km away
23. 2.225km S of Ocotillo Wells, CATue, Dec 23, 1:40 PM PST · 14526 days ago · 5 km deep · 68 km away
24. 2.42km N of Palomar Observatory, CATue, Dec 23, 7:15 PM PST · 14526 days ago · 8 km deep · 37 km away
25. 1.911km W of Anza, CATue, Dec 23, 10:04 PM PST · 14526 days ago · 3 km deep · 31 km away
26. 1.95km SSW of Idyllwild, CAWed, Dec 24, 3:35 AM PST · 14526 days ago · 15 km deep · 35 km away
27. 1.76km WNW of Garnet, CAWed, Dec 24, 6:31 AM PST · 14526 days ago · 3 km deep · 51 km away
28. 2.05km E of Cabazon, CAWed, Dec 24, 9:13 AM PST · 14526 days ago · 16 km deep · 56 km away
29. 2.110km WNW of Garnet, CAWed, Dec 24, 9:50 AM PST · 14526 days ago · 5 km deep · 55 km away
30. 2.51km SSW of Loma Linda, CAWed, Dec 24, 9:53 PM PST · 14525 days ago · 16 km deep · 97 km away
31. 2.16km SSE of Loma Linda, CAThu, Dec 25, 12:01 AM PST · 14525 days ago · 17 km deep · 92 km away
32. 1.86km W of Desert Hot Springs, CAThu, Dec 25, 3:56 AM PST · 14525 days ago · 9 km deep · 56 km away
33. 1.92km WNW of Loma Linda, CAThu, Dec 25, 4:30 AM PST · 14525 days ago · 15 km deep · 99 km away
34. 3.722km SW of Ocotillo Wells, CAThu, Dec 25, 9:35 AM PST · 14525 days ago · 7 km deep · 56 km away
35. 1.714km ESE of Anza, CAThu, Dec 25, 10:11 AM PST · 14525 days ago · 15 km deep · 7 km away
36. 2.022km NNW of Yucca Valley, CAThu, Dec 25, 11:56 PM PST · 14524 days ago · 5 km deep · 93 km away
37. 2.212km ESE of Anza, CAFri, Dec 26, 7:04 AM PST · 14524 days ago · 9 km deep · 8 km away
38. 2.112km ESE of Anza, CAFri, Dec 26, 7:51 AM PST · 14524 days ago · 11 km deep · 8 km away
39. 1.812km ESE of Anza, CAFri, Dec 26, 8:20 AM PST · 14524 days ago · 10 km deep · 8 km away
40. 1.812km ESE of Anza, CAFri, Dec 26, 3:09 PM PST · 14523 days ago · 10 km deep · 8 km away
41. 1.713km ESE of Anza, CAFri, Dec 26, 4:54 PM PST · 14523 days ago · 10 km deep · 8 km away
42. 1.79km SSW of Morongo Valley, CAFri, Dec 26, 5:55 PM PST · 14523 days ago · 6 km deep · 59 km away
43. 1.913km ESE of Anza, CAFri, Dec 26, 6:22 PM PST · 14523 days ago · 11 km deep · 8 km away
44. 2.313km ESE of Anza, CAFri, Dec 26, 7:57 PM PST · 14523 days ago · 9 km deep · 8 km away
45. 1.812km ESE of Anza, CASat, Dec 27, 12:14 AM PST · 14523 days ago · 11 km deep · 8 km away
46. 1.813km ESE of Anza, CASat, Dec 27, 1:44 AM PST · 14523 days ago · 12 km deep · 8 km away
47. 2.316km SSW of Oasis, CASat, Dec 27, 2:57 AM PST · 14523 days ago · 10 km deep · 31 km away
48. 2.08km WSW of Idyllwild, CASat, Dec 27, 6:24 AM PST · 14523 days ago · 13 km deep · 40 km away
49. 2.013km ESE of Anza, CASat, Dec 27, 8:40 AM PST · 14523 days ago · 12 km deep · 8 km away
50. 3.313km ESE of Anza, CASat, Dec 27, 11:13 AM PST · 14523 days ago · 11 km deep · 8 km away
51. 2.413km ESE of Anza, CASat, Dec 27, 11:53 AM PST · 14523 days ago · 9 km deep · 7 km away
52. 2.59km ENE of Joshua Tree, CASat, Dec 27, 1:06 PM PST · 14522 days ago · 2 km deep · 82 km away
53. 1.78km SSW of Morongo Valley, CASat, Dec 27, 1:36 PM PST · 14522 days ago · 8 km deep · 58 km away
54. 2.512km ESE of Anza, CASat, Dec 27, 4:03 PM PST · 14522 days ago · 9 km deep · 8 km away
55. 1.84km ESE of Bombay Beach, CASat, Dec 27, 4:16 PM PST · 14522 days ago · 1 km deep · 74 km away
56. 2.113km ESE of Anza, CASat, Dec 27, 9:26 PM PST · 14522 days ago · 12 km deep · 8 km away
57. 1.83km SE of Loma Linda, CASun, Dec 28, 12:53 AM PST · 14522 days ago · 16 km deep · 94 km away
58. 1.518km NE of Coachella, CASun, Dec 28, 6:32 AM PST · 14522 days ago · 3 km deep · 55 km away
59. 1.521km WSW of Ocotillo Wells, CASun, Dec 28, 8:22 AM PST · 14522 days ago · 6 km deep · 50 km away
60. 1.619km NE of Coachella, CASun, Dec 28, 11:05 AM PST · 14522 days ago · 3 km deep · 55 km away

The first 60 of 197.

Before

1. 2.010km NNW of Anza, CASat, Dec 20, 7:02 AM PST · 14530 days ago · 13 km deep · 29 km away
2. 2.214km SE of Anza, CASat, Dec 20, 5:13 AM PST · 14530 days ago · 13 km deep · 8 km away
3. 1.813km ESE of Anza, CAFri, Dec 19, 9:47 PM PST · 14530 days ago · 11 km deep · 8 km away
4. 1.92km SE of Loma Linda, CAFri, Dec 19, 3:12 PM PST · 14530 days ago · 16 km deep · 95 km away
5. 2.17km NNW of Garnet, CAFri, Dec 19, 7:36 AM PST · 14531 days ago · 3 km deep · 55 km away
6. 1.810km N of Aguanga, CAFri, Dec 19, 6:04 AM PST · 14531 days ago · 12 km deep · 36 km away
7. 3.09km WSW of Idyllwild, CAFri, Dec 19, 5:51 AM PST · 14531 days ago · 17 km deep · 40 km away
8. 2.410km ENE of Joshua Tree, CAFri, Dec 19, 4:52 AM PST · 14531 days ago · 5 km deep · 81 km away
9. 1.85km ESE of Cabazon, CAFri, Dec 19, 2:21 AM PST · 14531 days ago · 12 km deep · 53 km away
10. 2.113km ESE of Anza, CAThu, Dec 18, 9:41 PM PST · 14531 days ago · 11 km deep · 8 km away
11. 2.14km SSE of Lake Henshaw, CAThu, Dec 18, 8:14 PM PST · 14531 days ago · 10 km deep · 39 km away
12. 2.04km NNE of Yucca Valley, CAThu, Dec 18, 5:08 AM PST · 14532 days ago · 2 km deep · 76 km away
13. 1.912km ESE of Anza, CAThu, Dec 18, 1:02 AM PST · 14532 days ago · 10 km deep · 8 km away
14. 2.15km NNE of Yucca Valley, CAWed, Dec 17, 2:21 PM PST · 14532 days ago · 2 km deep · 76 km away
15. 2.28km WSW of Morongo Valley, CAWed, Dec 17, 1:53 AM PST · 14533 days ago · 8 km deep · 63 km away
16. 1.76km WNW of Desert Hot Springs, CAWed, Dec 17, 1:42 AM PST · 14533 days ago · 10 km deep · 57 km away
17. 2.09km WSW of Morongo Valley, CATue, Dec 16, 6:26 PM PST · 14533 days ago · 9 km deep · 64 km away
18. 2.013km ESE of Anza, CATue, Dec 16, 4:03 PM PST · 14533 days ago · 10 km deep · 8 km away
19. 1.913km ESE of Anza, CATue, Dec 16, 3:35 PM PST · 14533 days ago · 11 km deep · 8 km away
20. 1.911km S of Borrego Springs, CATue, Dec 16, 1:43 PM PST · 14533 days ago · 10 km deep · 35 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci714799. Read Thu, Oct 1, 2026, 7:32 AM UTC.