M1.6 earthquake 2km E of Progreso, B.C., MX

Magnitude

1.6 (mc), micro

Local time

Sun, Dec 20, 1981, 12:57 PM PST

UTC

1981-12-20 20:57:37 UTC

Depth

10.4 km (6.5 mi), shallow

Epicenter

32.581° N, 115.567° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.3 km horizontally, 1.8 km in depth

Depth from

From location

Station coverage gap

180°

Stations used

13

• Santa Isabel, MexicoPopulation 29,311. Forecast6 kmS
• Mexicali, MexicoPopulation 1,032,686. Forecast12 kmWSW

After

1. 1.726km SSW of Ocotillo Wells, CASun, Dec 20, 5:10 PM PST · 16346 days ago · 5 km deep · 78 km away
2. 2.571km ENE of Maneadero, B.C., MXMon, Dec 21, 2:19 AM PST · 16346 days ago · 6 km deep · 84 km away
3. 1.611km SE of Bombay Beach, CAWed, Dec 23, 1:54 AM PST · 16344 days ago · 2 km deep · 77 km away
4. 1.811km WNW of Westmorland, CAThu, Dec 24, 2:22 PM PST · 16343 days ago · 7 km deep · 56 km away
5. 1.926km SSW of Ocotillo Wells, CAThu, Dec 24, 5:51 PM PST · 16342 days ago · 2 km deep · 78 km away
6. 2.012km SW of Salton City, CAFri, Dec 25, 9:26 AM PST · 16342 days ago · 8 km deep · 86 km away
7. 2.812km NNE of Ocotillo Wells, CAFri, Dec 25, 9:26 AM PST · 16342 days ago · 6 km deep · 86 km away
8. 1.711km NNE of Ocotillo Wells, CAFri, Dec 25, 9:27 AM PST · 16342 days ago · 4 km deep · 86 km away
9. 1.725km WSW of Westmorland, CASat, Dec 26, 2:40 PM PST · 16341 days ago · 8 km deep · 53 km away
10. 1.76km NE of Imperial, CASun, Dec 27, 11:53 PM PST · 16339 days ago · 15 km deep · 34 km away
11. 1.812km NW of Delta, B.C., MXTue, Dec 29, 9:36 AM PST · 16338 days ago · 6 km deep · 31 km away
12. 1.820km W of Progreso, B.C., MXTue, Dec 29, 6:03 PM PST · 16337 days ago · 5 km deep · 22 km away
13. 1.821km W of Progreso, B.C., MXTue, Dec 29, 6:05 PM PST · 16337 days ago · 4 km deep · 23 km away
14. 1.948km ENE of Ensenada, B.C., MXWed, Dec 30, 5:40 PM PST · 16336 days ago · 6 km deep · 80 km away
15. 1.718km SSW of Ocotillo Wells, CAThu, Dec 31, 9:53 AM PST · 16336 days ago · 4 km deep · 79 km away
16. 1.75km ENE of Heber, CAThu, Dec 31, 5:06 PM PST · 16335 days ago · 6 km deep · 21 km away
17. 2.112km WSW of Ocotillo, CAFri, Jan 1, 12:17 PM PST · 16335 days ago · 5 km deep · 54 km away
18. 2.126km SSW of Ocotillo Wells, CASat, Jan 2, 1:26 PM PST · 16334 days ago · 5 km deep · 78 km away
19. 2.325km SSW of Ocotillo Wells, CASat, Jan 2, 1:42 PM PST · 16334 days ago · 5 km deep · 78 km away
20. 3.040km NNW of Los Algodones, B.C., MXSat, Jan 2, 9:02 PM MST · 16333 days ago · 6 km deep · 87 km away
21. 1.66km NE of Ocotillo Wells, CAMon, Jan 4, 4:27 PM PST · 16332 days ago · 10 km deep · 82 km away
22. 2.754km ENE of Maneadero, B.C., MXMon, Jan 4, 10:40 PM PST · 16331 days ago · 6 km deep · 94 km away
23. 2.242km ENE of Ensenada, B.C., MXMon, Jan 4, 10:54 PM PST · 16331 days ago · 6 km deep · 92 km away
24. 1.69km N of Westmorland, CATue, Jan 5, 11:04 PM PST · 16330 days ago · 6 km deep · 60 km away
25. 1.911km SW of Salton City, CAThu, Jan 7, 3:09 AM PST · 16329 days ago · 6 km deep · 86 km away
26. 1.812km E of Borrego Springs, CAFri, Jan 8, 2:09 AM PST · 16328 days ago · 14 km deep · 97 km away
27. 1.76km SE of Bombay Beach, CASat, Jan 9, 11:18 AM PST · 16327 days ago · 3 km deep · 82 km away
28. 1.76km SE of Bombay Beach, CASun, Jan 10, 1:24 AM PST · 16326 days ago · 3 km deep · 82 km away
29. 2.732km ENE of Ensenada, B.C., MXMon, Jan 11, 7:47 AM PST · 16325 days ago · 6 km deep · 96 km away
30. 1.926km SSW of Ocotillo Wells, CAMon, Jan 11, 1:05 PM PST · 16325 days ago · 5 km deep · 78 km away
31. 2.017km SW of Ocotillo Wells, CATue, Jan 12, 1:02 AM PST · 16324 days ago · 10 km deep · 81 km away
32. 2.638km E of Ensenada, B.C., MXWed, Jan 13, 2:07 AM PST · 16323 days ago · 6 km deep · 96 km away
33. 2.811km SSE of Alberto Oviedo Mota, B.C., MXWed, Jan 13, 11:15 AM PST · 16323 days ago · 6 km deep · 65 km away
34. 1.68km SW of Holtville, CAWed, Jan 13, 3:58 PM PST · 16323 days ago · 10 km deep · 23 km away
35. 2.650km SSW of Progreso, B.C., MXThu, Jan 14, 9:56 AM PST · 16322 days ago · 6 km deep · 50 km away
36. 1.818km SE of Salton City, CAFri, Jan 15, 9:00 AM PST · 16321 days ago · 6 km deep · 72 km away
37. 1.926km SSW of Ocotillo Wells, CASat, Jan 16, 3:10 PM PST · 16320 days ago · 6 km deep · 78 km away
38. 2.922km WSW of Westmorland, CASun, Jan 17, 2:04 AM PST · 16319 days ago · 7 km deep · 46 km away
39. 2.921km WSW of Westmorland, CASun, Jan 17, 2:04 AM PST · 16319 days ago · 9 km deep · 46 km away
40. 2.35km S of Salton City, CASun, Jan 17, 5:20 PM PST · 16318 days ago · 3 km deep · 83 km away
41. 2.18km SW of Holtville, CASun, Jan 17, 6:22 PM PST · 16318 days ago · 8 km deep · 24 km away
42. 2.836km ENE of Ensenada, B.C., MXSun, Jan 17, 7:19 PM PST · 16318 days ago · 6 km deep · 93 km away
43. 2.847km SSW of Progreso, B.C., MXMon, Jan 18, 9:04 AM PST · 16318 days ago · 6 km deep · 48 km away
44. 2.249km SSW of Progreso, B.C., MXMon, Jan 18, 7:59 PM PST · 16317 days ago · 6 km deep · 50 km away
45. 2.413km NNE of Pine Valley, CATue, Jan 19, 5:47 AM PST · 16317 days ago · 5 km deep · 93 km away
46. 2.448km SSW of Progreso, B.C., MXTue, Jan 19, 3:25 PM PST · 16317 days ago · 6 km deep · 48 km away
47. 2.39km S of Ocotillo Wells, CAWed, Jan 20, 6:35 PM PST · 16315 days ago · 10 km deep · 76 km away
48. 2.15km N of Bombay Beach, CAThu, Jan 21, 5:07 AM PST · 16315 days ago · 4 km deep · 92 km away
49. 1.926km WSW of Westmorland, CASat, Jan 23, 3:53 AM PST · 16313 days ago · 5 km deep · 55 km away
50. 2.569km ENE of Maneadero, B.C., MXSat, Jan 23, 10:45 AM PST · 16313 days ago · 6 km deep · 83 km away
51. 1.66km SE of Bombay Beach, CASat, Jan 23, 3:59 PM PST · 16313 days ago · 1 km deep · 82 km away
52. 1.720km ESE of Julian, CASat, Jan 23, 4:17 PM PST · 16313 days ago · 3 km deep · 92 km away
53. 2.59km S of Borrego Springs, CASun, Jan 24, 10:25 AM PST · 16312 days ago · 8 km deep · 99 km away
54. 2.218km SSW of Ocotillo Wells, CASun, Jan 24, 7:49 PM PST · 16311 days ago · 5 km deep · 78 km away
55. 2.770km WSW of Alberto Oviedo Mota, B.C., MXMon, Jan 25, 12:08 AM PST · 16311 days ago · 6 km deep · 78 km away
56. 1.711km NNE of Ocotillo Wells, CAMon, Jan 25, 7:27 AM PST · 16311 days ago · 11 km deep · 87 km away
57. 3.674km E of Maneadero, B.C., MXMon, Jan 25, 11:04 AM PST · 16311 days ago · 6 km deep · 86 km away
58. 1.918km SSW of Ocotillo Wells, CAMon, Jan 25, 3:25 PM PST · 16311 days ago · 4 km deep · 78 km away
59. 3.011km NNE of Ocotillo Wells, CAMon, Jan 25, 3:47 PM PST · 16311 days ago · 8 km deep · 87 km away
60. 1.84km SSW of Salton City, CAMon, Jan 25, 8:40 PM PST · 16310 days ago · 2 km deep · 86 km away

The first 60 of 94.

Before

1. 1.727km SSW of Ocotillo Wells, CASat, Dec 19, 7:28 AM PST · 16348 days ago · 5 km deep · 72 km away
2. 2.311km SW of Puebla, B.C., MXSat, Dec 19, 4:29 AM PST · 16348 days ago · 6 km deep · 15 km away
3. 2.110km WSW of Imperial, CAFri, Dec 18, 3:40 PM PST · 16349 days ago · 15 km deep · 28 km away
4. 1.620km ESE of Julian, CAFri, Dec 18, 2:47 PM PST · 16349 days ago · 1 km deep · 91 km away
5. 3.070km ENE of Maneadero, B.C., MXThu, Dec 17, 4:10 AM PST · 16350 days ago · 6 km deep · 83 km away
6. 2.033km ENE of Ensenada, B.C., MXWed, Dec 16, 5:32 PM PST · 16350 days ago · 6 km deep · 95 km away
7. 2.469km ENE of Maneadero, B.C., MXWed, Dec 16, 1:53 PM PST · 16351 days ago · 6 km deep · 83 km away
8. 2.75km SSW of Salton City, CAMon, Dec 14, 11:24 PM PST · 16352 days ago · 4 km deep · 84 km away
9. 1.718km S of Borrego Springs, CAMon, Dec 14, 6:32 PM PST · 16352 days ago · 7 km deep · 97 km away
10. 1.822km ESE of Julian, CASun, Dec 13, 11:39 PM PST · 16353 days ago · 3 km deep · 90 km away
11. 1.66km WSW of Westmorland, CASun, Dec 13, 8:19 AM PST · 16354 days ago · 8 km deep · 49 km away
12. 1.523km ENE of Pine Valley, CASun, Dec 13, 2:12 AM PST · 16354 days ago · 6 km deep · 81 km away
13. 1.512km E of Borrego Springs, CAThu, Dec 10, 8:46 PM PST · 16356 days ago · 2 km deep · 98 km away
14. 1.954km SSW of Progreso, B.C., MXThu, Dec 10, 4:10 AM PST · 16357 days ago · 6 km deep · 54 km away
15. 2.139km NE of Ensenada, B.C., MXWed, Dec 9, 11:21 PM PST · 16357 days ago · 6 km deep · 89 km away
16. 1.59km SE of Bombay Beach, CAWed, Dec 9, 9:17 PM PST · 16357 days ago · 5 km deep · 80 km away
17. 1.711km W of Calipatria, CASat, Dec 5, 3:13 PM PST · 16362 days ago · 11 km deep · 63 km away
18. 2.010km NNE of Ocotillo Wells, CASat, Dec 5, 7:56 AM PST · 16362 days ago · 7 km deep · 86 km away
19. 1.63km WNW of Brawley, CAWed, Dec 2, 7:04 AM PST · 16365 days ago · 10 km deep · 46 km away
20. 1.814km NNW of Delta, B.C., MXTue, Dec 1, 7:00 PM PST · 16365 days ago · 6 km deep · 33 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci103674. Read Tue, Sep 22, 2026, 12:08 PM UTC.