M1.8 earthquake 10km SW of Anza, CA

Magnitude

1.8 (mh), micro

Local time

Sun, Nov 22, 1981, 5:56 PM PST

UTC

1981-11-23 01:56:46 UTC

Depth

8.4 km (5.2 mi), shallow

Epicenter

33.495° N, 116.757° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 2.6 km in depth

Magnitude uncertainty

±0.19

Depth from

From location

Station coverage gap

112°

Stations used

7

• Anza, CaliforniaPopulation 3,014. Forecast10 kmSW
• Valle Vista, CaliforniaPopulation 14,578. Forecast31 kmSSE
• Temecula, CaliforniaPopulation 110,003. Forecast36 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast95 kmNNE

After

1. 1.813km SSE of Valle Vista, CAMon, Nov 23, 12:27 AM PST · 16374 days ago · 15 km deep · 18 km away
2. 2.96km SSW of Salton City, CAMon, Nov 23, 9:03 AM PST · 16374 days ago · 5 km deep · 78 km away
3. 2.111km N of Banning, CAMon, Nov 23, 2:42 PM PST · 16374 days ago · 10 km deep · 59 km away
4. 1.85km N of Banning, CATue, Nov 24, 8:54 AM PST · 16373 days ago · 16 km deep · 54 km away
5. 1.714km S of Twentynine Palms, CATue, Nov 24, 3:40 PM PST · 16372 days ago · 2 km deep · 84 km away
6. 1.512km WSW of Salton City, CAWed, Nov 25, 10:44 PM PST · 16371 days ago · 7 km deep · 70 km away
7. 1.85km SSW of Salton City, CAThu, Nov 26, 3:45 AM PST · 16371 days ago · 3 km deep · 77 km away
8. 1.79km SW of Salton City, CAThu, Nov 26, 3:50 AM PST · 16371 days ago · 2 km deep · 72 km away
9. 1.914km E of Borrego Springs, CAFri, Nov 27, 3:26 AM PST · 16370 days ago · 9 km deep · 56 km away
10. 1.618km ESE of Anza, CAFri, Nov 27, 10:12 AM PST · 16370 days ago · 9 km deep · 24 km away
11. 1.516km NNW of Borrego Springs, CAFri, Nov 27, 4:19 PM PST · 16369 days ago · 11 km deep · 33 km away
12. 2.54km SSE of Mentone, CAFri, Nov 27, 6:48 PM PST · 16369 days ago · 4 km deep · 69 km away
13. 2.012km NNE of Pine Valley, CASat, Nov 28, 8:22 AM PST · 16369 days ago · 8 km deep · 69 km away
14. 2.98km SSW of Salton City, CASat, Nov 28, 6:43 PM PST · 16368 days ago · 10 km deep · 77 km away
15. 2.17km SE of Valle Vista, CASat, Nov 28, 9:54 PM PST · 16368 days ago · 13 km deep · 25 km away
16. 2.213km NE of Indio, CASun, Nov 29, 2:05 AM PST · 16368 days ago · 3 km deep · 69 km away
17. 1.72km NNE of Loma Linda, CASun, Nov 29, 7:14 AM PST · 16368 days ago · 14 km deep · 78 km away
18. 2.02km NNE of Loma Linda, CASun, Nov 29, 9:25 AM PST · 16368 days ago · 13 km deep · 78 km away
19. 1.610km NE of Aguanga, CASun, Nov 29, 11:29 AM PST · 16368 days ago · 4 km deep · 2 km away
20. 2.05km SSE of Banning, CASun, Nov 29, 11:19 PM PST · 16367 days ago · 12 km deep · 44 km away
21. 1.810km NE of Aguanga, CAMon, Nov 30, 7:11 AM PST · 16367 days ago · 4 km deep · 2 km away
22. 1.621km ESE of Anza, CAMon, Nov 30, 7:57 PM PST · 16366 days ago · 6 km deep · 28 km away
23. 2.132km SE of Twentynine Palms, CATue, Dec 1, 9:56 PM PST · 16365 days ago · 9 km deep · 95 km away
24. 2.524km N of Yucca Valley, CAThu, Dec 3, 4:09 PM PST · 16363 days ago · 0 km deep · 97 km away
25. 1.710km NE of Borrego Springs, CAThu, Dec 3, 9:58 PM PST · 16363 days ago · 10 km deep · 45 km away
26. 1.611km S of Idyllwild, CASat, Dec 5, 5:01 AM PST · 16362 days ago · 10 km deep · 17 km away
27. 2.010km NNE of Ocotillo Wells, CASat, Dec 5, 7:56 AM PST · 16362 days ago · 7 km deep · 69 km away
28. 1.732km SE of Twentynine Palms, CAMon, Dec 7, 1:15 AM PST · 16360 days ago · 7 km deep · 95 km away
29. 1.824km N of Yucca Valley, CAMon, Dec 7, 9:32 AM PST · 16360 days ago · 2 km deep · 97 km away
30. 1.724km N of Yucca Valley, CAMon, Dec 7, 9:52 AM PST · 16360 days ago · 1 km deep · 97 km away
31. 2.77km NNE of Borrego Springs, CATue, Dec 8, 1:51 PM PST · 16359 days ago · 12 km deep · 43 km away
32. 1.512km NNE of Indio, CAWed, Dec 9, 2:47 AM PST · 16358 days ago · 6 km deep · 65 km away
33. 1.821km N of Yucca Valley, CAWed, Dec 9, 10:14 AM PST · 16358 days ago · 1 km deep · 94 km away
34. 1.67km SW of Yucca Valley, CAThu, Dec 10, 7:43 AM PST · 16357 days ago · 9 km deep · 69 km away
35. 1.810km ENE of Aguanga, CAThu, Dec 10, 8:53 AM PST · 16357 days ago · 3 km deep · 2 km away
36. 1.512km E of Borrego Springs, CAThu, Dec 10, 8:46 PM PST · 16356 days ago · 2 km deep · 55 km away
37. 1.53km NW of Julian, CASat, Dec 12, 10:39 PM PST · 16354 days ago · 15 km deep · 46 km away
38. 1.523km ENE of Pine Valley, CASun, Dec 13, 2:12 AM PST · 16354 days ago · 6 km deep · 74 km away
39. 1.51km N of Loma Linda, CASun, Dec 13, 1:45 PM PST · 16354 days ago · 14 km deep · 78 km away
40. 1.910km N of Cabazon, CASun, Dec 13, 7:08 PM PST · 16353 days ago · 14 km deep · 57 km away
41. 1.822km ESE of Julian, CASun, Dec 13, 11:39 PM PST · 16353 days ago · 3 km deep · 66 km away
42. 2.319km NNE of Indio, CAMon, Dec 14, 11:14 AM PST · 16353 days ago · 4 km deep · 70 km away
43. 1.718km S of Borrego Springs, CAMon, Dec 14, 6:32 PM PST · 16352 days ago · 7 km deep · 55 km away
44. 2.75km SSW of Salton City, CAMon, Dec 14, 11:24 PM PST · 16352 days ago · 4 km deep · 78 km away
45. 1.917km NNW of Joshua Tree, CAWed, Dec 16, 5:12 PM PST · 16350 days ago · 5 km deep · 94 km away
46. 1.917km NNW of Joshua Tree, CAWed, Dec 16, 6:54 PM PST · 16350 days ago · 3 km deep · 94 km away
47. 2.27km SSW of Calimesa, CAThu, Dec 17, 2:29 AM PST · 16350 days ago · 15 km deep · 57 km away
48. 1.79km SE of Valle Vista, CAThu, Dec 17, 11:20 AM PST · 16350 days ago · 14 km deep · 23 km away
49. 1.620km ESE of Julian, CAFri, Dec 18, 2:47 PM PST · 16349 days ago · 1 km deep · 65 km away
50. 2.54km N of Fontana, CAFri, Dec 18, 8:08 PM PST · 16348 days ago · 7 km deep · 97 km away
51. 1.727km SSW of Ocotillo Wells, CASat, Dec 19, 7:28 AM PST · 16348 days ago · 5 km deep · 81 km away
52. 1.83km NE of Laguna Niguel, CASat, Dec 19, 11:54 AM PST · 16348 days ago · 7 km deep · 87 km away
53. 1.68km ESE of Anza, CASun, Dec 20, 5:19 AM PST · 16347 days ago · 11 km deep · 16 km away
54. 1.611km NE of Aguanga, CASun, Dec 20, 10:12 AM PST · 16347 days ago · 2 km deep · 3 km away
55. 1.68km SW of Beaumont, CASun, Dec 20, 1:32 PM PST · 16347 days ago · 14 km deep · 51 km away
56. 1.726km SSW of Ocotillo Wells, CASun, Dec 20, 5:10 PM PST · 16346 days ago · 5 km deep · 75 km away
57. 1.610km ENE of Aguanga, CAMon, Dec 21, 2:29 AM PST · 16346 days ago · 3 km deep · 1 km away
58. 1.57km N of Lake Henshaw, CAMon, Dec 21, 4:38 AM PST · 16346 days ago · 15 km deep · 21 km away
59. 2.54km WSW of Morongo Valley, CATue, Dec 22, 12:32 PM PST · 16345 days ago · 8 km deep · 61 km away
60. 1.710km NE of Aguanga, CATue, Dec 22, 3:54 PM PST · 16344 days ago · 4 km deep · 2 km away

The first 60 of 145.

Before

1. 2.57km SSE of Banning, CASat, Nov 21, 9:48 AM PST · 16376 days ago · 12 km deep · 42 km away
2. 1.72km NNE of Loma Linda, CAFri, Nov 20, 11:59 AM PST · 16377 days ago · 14 km deep · 78 km away
3. 2.14km S of Loma Linda, CAThu, Nov 19, 9:37 PM PST · 16377 days ago · 11 km deep · 74 km away
4. 1.66km SE of Temecula, CAThu, Nov 19, 10:31 AM PST · 16378 days ago · 8 km deep · 32 km away
5. 1.518km ESE of Anza, CAThu, Nov 19, 1:19 AM PST · 16378 days ago · 9 km deep · 24 km away
6. 1.58km E of Borrego Springs, CAWed, Nov 18, 4:05 PM PST · 16378 days ago · 5 km deep · 50 km away
7. 1.95km SE of Temecula, CAWed, Nov 18, 1:08 AM PST · 16379 days ago · 7 km deep · 32 km away
8. 1.85km SE of Temecula, CATue, Nov 17, 10:54 PM PST · 16379 days ago · 7 km deep · 33 km away
9. 1.511km SW of Anza, CATue, Nov 17, 12:04 PM PST · 16380 days ago · 3 km deep · 1 km away
10. 2.312km N of Foothill Ranch, CATue, Nov 17, 11:29 AM PST · 16380 days ago · 1 km deep · 90 km away
11. 2.115km SSE of Anza, CAMon, Nov 16, 1:59 PM PST · 16381 days ago · 12 km deep · 17 km away
12. 1.69km NE of Lake Arrowhead, CAMon, Nov 16, 10:42 AM PST · 16381 days ago · 3 km deep · 97 km away
13. 1.65km ESE of Temecula, CAMon, Nov 16, 7:06 AM PST · 16381 days ago · 6 km deep · 32 km away
14. 2.014km SE of Anza, CASat, Nov 14, 12:58 AM PST · 16383 days ago · 10 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci152040. Read Tue, Sep 22, 2026, 10:50 AM UTC.