M1.6 earthquake 6km S of Brawley, CA

Magnitude

1.6 (mh), micro

Local time

Wed, Oct 21, 1981, 8:57 AM PDT

UTC

1981-10-21 15:57:07 UTC

Depth

12.3 km (7.6 mi), shallow

Epicenter

32.922° N, 115.527° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 1.9 km in depth

Depth from

From location

Station coverage gap

84°

Stations used

11

• Brawley, CaliforniaPopulation 25,897. Forecast6 kmS
• Mexicali, MexicoPopulation 1,032,686. Forecast33 kmNNW

After

1. 1.721km SW of Westmorland, CAWed, Oct 21, 2:53 PM PDT · 16414 days ago · 9 km deep · 26 km away
2. 2.418km N of Ocotillo, CAWed, Oct 21, 9:04 PM PDT · 16414 days ago · 12 km deep · 40 km away
3. 1.58km SW of Holtville, CAThu, Oct 22, 9:24 AM PDT · 16414 days ago · 6 km deep · 21 km away
4. 2.08km ESE of Puebla, B.C., MXFri, Oct 23, 10:41 PM PDT · 16412 days ago · 6 km deep · 49 km away
5. 2.314km SSW of Borrego Springs, CASat, Oct 24, 5:19 AM PDT · 16412 days ago · 8 km deep · 89 km away
6. 1.710km SE of Ocotillo, CASun, Oct 25, 6:36 AM PST · 16411 days ago · 4 km deep · 45 km away
7. 1.524km WSW of Westmorland, CASun, Oct 25, 2:27 PM PST · 16410 days ago · 7 km deep · 31 km away
8. 1.712km SSW of Puebla, B.C., MXMon, Oct 26, 1:23 AM PST · 16410 days ago · 6 km deep · 51 km away
9. 1.514km WNW of Calipatria, CAMon, Oct 26, 4:55 PM PST · 16409 days ago · 5 km deep · 30 km away
10. 2.916km NNE of Borrego Springs, CAMon, Oct 26, 6:56 PM PST · 16409 days ago · 14 km deep · 88 km away
11. 1.89km SW of Holtville, CAWed, Oct 28, 5:17 AM PST · 16408 days ago · 20 km deep · 21 km away
12. 1.96km W of Westmorland, CAFri, Oct 30, 9:30 AM PST · 16406 days ago · 5 km deep · 20 km away
13. 2.111km SW of Salton City, CAFri, Oct 30, 6:18 PM PST · 16405 days ago · 6 km deep · 60 km away
14. 1.74km SW of Brawley, CAFri, Oct 30, 8:19 PM PST · 16405 days ago · 13 km deep · 4 km away
15. 1.513km SSW of Borrego Springs, CASat, Oct 31, 8:16 AM PST · 16405 days ago · 6 km deep · 90 km away
16. 1.57km S of Brawley, CASat, Oct 31, 11:59 PM PST · 16404 days ago · 14 km deep · 1 km away
17. 1.812km SSE of Bombay Beach, CASun, Nov 1, 11:34 PM PST · 16403 days ago · 5 km deep · 39 km away
18. 1.523km SSW of Ocotillo Wells, CAMon, Nov 2, 8:18 PM PST · 16402 days ago · 5 km deep · 67 km away
19. 1.511km NNE of Borrego Springs, CATue, Nov 3, 2:26 AM PST · 16402 days ago · 11 km deep · 89 km away
20. 1.56km NNW of Ocotillo Wells, CAThu, Nov 5, 6:11 PM PST · 16399 days ago · 8 km deep · 66 km away
21. 2.112km SE of Bombay Beach, CAFri, Nov 6, 9:59 AM PST · 16399 days ago · 4 km deep · 40 km away
22. 1.528km ENE of Pine Valley, CASat, Nov 7, 10:00 AM PST · 16398 days ago · 5 km deep · 68 km away
23. 2.76km WSW of Imperial, CAMon, Nov 9, 7:54 AM PST · 16396 days ago · 6 km deep · 14 km away
24. 1.615km N of Borrego Springs, CAMon, Nov 9, 3:18 PM PST · 16395 days ago · 2 km deep · 94 km away
25. 1.813km NNW of Delta, B.C., MXTue, Nov 10, 9:52 PM PST · 16394 days ago · 6 km deep · 57 km away
26. 1.526km WNW of Desert Center, CAWed, Nov 11, 1:59 PM PST · 16393 days ago · 5 km deep · 96 km away
27. 2.310km NE of Julian, CAThu, Nov 12, 12:18 AM PST · 16393 days ago · 10 km deep · 96 km away
28. 1.54km NW of Delta, B.C., MXFri, Nov 13, 2:19 AM PST · 16392 days ago · 6 km deep · 67 km away
29. 1.822km SW of Ocotillo Wells, CAFri, Nov 13, 5:59 AM PST · 16392 days ago · 5 km deep · 70 km away
30. 1.714km NW of Delta, B.C., MXSun, Nov 15, 3:54 AM PST · 16390 days ago · 6 km deep · 58 km away
31. 1.85km S of Brawley, CASun, Nov 15, 4:41 AM PST · 16390 days ago · 10 km deep · 1 km away
32. 2.354km SSW of Progreso, B.C., MXTue, Nov 17, 9:03 AM PST · 16388 days ago · 6 km deep · 91 km away
33. 2.029km SSW of Progreso, B.C., MXTue, Nov 17, 10:13 PM PST · 16387 days ago · 6 km deep · 66 km away
34. 1.512km SE of Puebla, B.C., MXWed, Nov 18, 7:39 AM PST · 16387 days ago · 6 km deep · 54 km away
35. 1.58km E of Borrego Springs, CAWed, Nov 18, 4:05 PM PST · 16386 days ago · 5 km deep · 81 km away
36. 1.98km SW of Holtville, CAThu, Nov 19, 8:04 PM PST · 16385 days ago · 18 km deep · 21 km away
37. 2.354km SSW of Progreso, B.C., MXFri, Nov 20, 6:26 AM PST · 16385 days ago · 6 km deep · 92 km away
38. 1.78km ENE of Puebla, B.C., MXFri, Nov 20, 6:30 AM PST · 16385 days ago · 11 km deep · 45 km away
39. 2.96km SSW of Salton City, CAMon, Nov 23, 9:03 AM PST · 16382 days ago · 5 km deep · 55 km away
40. 1.512km WSW of Salton City, CAWed, Nov 25, 10:44 PM PST · 16379 days ago · 7 km deep · 61 km away
41. 1.85km SSW of Salton City, CAThu, Nov 26, 3:45 AM PST · 16379 days ago · 3 km deep · 56 km away
42. 1.79km SW of Salton City, CAThu, Nov 26, 3:50 AM PST · 16379 days ago · 2 km deep · 60 km away
43. 1.55km NNW of Brawley, CAThu, Nov 26, 12:08 PM PST · 16378 days ago · 10 km deep · 11 km away
44. 1.61km WSW of El Centro, CAThu, Nov 26, 11:23 PM PST · 16378 days ago · 16 km deep · 16 km away
45. 1.914km E of Borrego Springs, CAFri, Nov 27, 3:26 AM PST · 16378 days ago · 9 km deep · 75 km away
46. 1.516km NNW of Borrego Springs, CAFri, Nov 27, 4:19 PM PST · 16377 days ago · 11 km deep · 98 km away
47. 2.012km NNE of Pine Valley, CASat, Nov 28, 8:22 AM PST · 16377 days ago · 8 km deep · 89 km away
48. 1.75km WSW of Imperial, CASat, Nov 28, 8:32 AM PST · 16377 days ago · 12 km deep · 13 km away
49. 1.712km SSE of Puebla, B.C., MXSat, Nov 28, 9:36 AM PST · 16377 days ago · 6 km deep · 55 km away
50. 2.98km SSW of Salton City, CASat, Nov 28, 6:43 PM PST · 16376 days ago · 10 km deep · 55 km away
51. 2.021km W of Alberto Oviedo Mota, B.C., MXSun, Nov 29, 9:46 AM PST · 16376 days ago · 6 km deep · 79 km away
52. 2.08km SSE of Bombay Beach, CASun, Nov 29, 12:00 PM PST · 16375 days ago · 4 km deep · 44 km away
53. 1.77km SE of Bombay Beach, CASun, Nov 29, 5:20 PM PST · 16375 days ago · 4 km deep · 45 km away
54. 1.614km WSW of Westmorland, CAMon, Nov 30, 2:15 AM PST · 16375 days ago · 5 km deep · 23 km away
55. 2.211km WNW of Calipatria, CAMon, Nov 30, 3:38 PM PST · 16374 days ago · 10 km deep · 27 km away
56. 2.812km N of Westmorland, CAMon, Nov 30, 7:14 PM PST · 16374 days ago · 14 km deep · 26 km away
57. 1.511km W of Calipatria, CAMon, Nov 30, 11:04 PM PST · 16374 days ago · 9 km deep · 26 km away
58. 1.811km W of Calipatria, CATue, Dec 1, 4:28 AM PST · 16374 days ago · 11 km deep · 25 km away
59. 1.710km W of Calipatria, CATue, Dec 1, 7:23 AM PST · 16374 days ago · 10 km deep · 25 km away
60. 1.68km W of Calipatria, CATue, Dec 1, 10:14 AM PST · 16374 days ago · 10 km deep · 24 km away

The first 60 of 79.

Before

1. 1.817km SSW of Ocotillo, CAWed, Oct 21, 12:51 AM PDT · 16415 days ago · 7 km deep · 63 km away
2. 2.08km NW of Ocotillo, CATue, Oct 20, 1:09 PM PDT · 16415 days ago · 9 km deep · 52 km away
3. 1.625km ENE of Pine Valley, CAMon, Oct 19, 12:11 AM PDT · 16417 days ago · 6 km deep · 72 km away
4. 1.94km SW of Guadalupe Victoria, B.C., MXSun, Oct 18, 5:01 PM PDT · 16417 days ago · 6 km deep · 82 km away
5. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 5:07 PM PDT · 16418 days ago · 7 km deep · 60 km away
6. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 2:49 PM PDT · 16418 days ago · 4 km deep · 60 km away
7. 1.612km SW of Salton City, CASat, Oct 17, 1:16 PM PDT · 16418 days ago · 6 km deep · 60 km away
8. 1.811km SW of Salton City, CASat, Oct 17, 1:00 PM PDT · 16418 days ago · 5 km deep · 60 km away
9. 1.712km NE of Ocotillo Wells, CASat, Oct 17, 1:00 PM PDT · 16418 days ago · 5 km deep · 60 km away
10. 3.112km NNE of Ocotillo Wells, CASat, Oct 17, 12:54 PM PDT · 16418 days ago · 5 km deep · 61 km away
11. 2.212km NE of Ocotillo Wells, CASat, Oct 17, 12:53 PM PDT · 16418 days ago · 6 km deep · 60 km away
12. 2.011km NNE of Ocotillo Wells, CASat, Oct 17, 12:51 PM PDT · 16418 days ago · 5 km deep · 61 km away
13. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 12:50 PM PDT · 16418 days ago · 5 km deep · 58 km away
14. 1.712km NNE of Ocotillo Wells, CASat, Oct 17, 12:49 PM PDT · 16418 days ago · 3 km deep · 61 km away
15. 3.712km SW of Salton City, CASat, Oct 17, 12:47 PM PDT · 16418 days ago · 15 km deep · 60 km away
16. 2.012km SW of Salton City, CASat, Oct 17, 12:36 PM PDT · 16418 days ago · 5 km deep · 60 km away
17. 1.812km NE of Ocotillo Wells, CASat, Oct 17, 10:12 AM PDT · 16419 days ago · 5 km deep · 60 km away
18. 1.76km ENE of Puebla, B.C., MXThu, Oct 15, 9:14 AM PDT · 16421 days ago · 6 km deep · 44 km away
19. 1.822km SW of Westmorland, CAThu, Oct 15, 3:40 AM PDT · 16421 days ago · 7 km deep · 27 km away
20. 1.66km W of Westmorland, CAWed, Oct 14, 3:55 PM PDT · 16421 days ago · 4 km deep · 19 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci525850. Read Wed, Sep 30, 2026, 6:01 AM UTC.