M1.8 earthquake 22km WSW of Progreso, B.C., MX

Magnitude

1.8 (mc), micro

Local time

Fri, Sep 4, 1981, 3:45 PM PDT

UTC

1981-09-04 22:45:52 UTC

Depth

8.0 km (5.0 mi), shallow

Epicenter

32.511° N, 115.808° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.5 km horizontally, 2.7 km in depth

Depth from

From location

Station coverage gap

208°, poorly surrounded by stations

Stations used

16

• Santa Isabel, MexicoPopulation 29,311. Forecast26 kmWSW
• Mexicali, MexicoPopulation 1,032,686. Forecast36 kmWSW

After

1. 2.024km ESE of Primo Tapia, B.C., MXFri, Sep 4, 11:38 PM PDT · 16454 days ago · 6 km deep · 93 km away
2. 1.78km NNE of Julian, CASat, Sep 5, 11:15 PM PDT · 16453 days ago · 12 km deep · 100 km away
3. 2.221km SW of Ocotillo Wells, CASat, Sep 5, 11:21 PM PDT · 16453 days ago · 7 km deep · 71 km away
4. 1.68km SW of Holtville, CASun, Sep 6, 3:26 AM PDT · 16453 days ago · 6 km deep · 44 km away
5. 2.342km ENE of Maneadero, B.C., MXSun, Sep 6, 7:39 AM PDT · 16453 days ago · 5 km deep · 76 km away
6. 1.65km SSW of Salton City, CASun, Sep 6, 6:05 PM PDT · 16453 days ago · 4 km deep · 84 km away
7. 1.66km SSW of Salton City, CASun, Sep 6, 7:41 PM PDT · 16453 days ago · 3 km deep · 84 km away
8. 2.016km W of Progreso, B.C., MXSun, Sep 6, 10:11 PM PDT · 16452 days ago · 14 km deep · 8 km away
9. 1.66km SSW of Salton City, CASun, Sep 6, 10:44 PM PDT · 16452 days ago · 0 km deep · 84 km away
10. 1.66km SSW of Salton City, CAMon, Sep 7, 3:00 AM PDT · 16452 days ago · 3 km deep · 83 km away
11. 2.471km ENE of Maneadero, B.C., MXMon, Sep 7, 6:39 PM PDT · 16452 days ago · 6 km deep · 68 km away
12. 1.76km SSW of Salton City, CATue, Sep 8, 4:54 PM PDT · 16451 days ago · 3 km deep · 84 km away
13. 3.59km WSW of Puebla, B.C., MXWed, Sep 9, 11:06 AM PDT · 16450 days ago · 6 km deep · 34 km away
14. 1.53km SW of Brawley, CAWed, Sep 9, 1:55 PM PDT · 16450 days ago · 14 km deep · 55 km away
15. 2.033km E of Maneadero, B.C., MXWed, Sep 9, 8:56 PM PDT · 16450 days ago · 5 km deep · 94 km away
16. 2.039km E of Maneadero, B.C., MXThu, Sep 10, 12:12 PM PDT · 16449 days ago · 6 km deep · 89 km away
17. 2.065km WSW of Alberto Oviedo Mota, B.C., MXFri, Sep 11, 11:58 AM PDT · 16448 days ago · 6 km deep · 66 km away
18. 2.911km NE of Ocotillo Wells, CASun, Sep 13, 8:53 AM PDT · 16446 days ago · 8 km deep · 83 km away
19. 2.053km E of Maneadero, B.C., MXSun, Sep 13, 2:46 PM PDT · 16446 days ago · 5 km deep · 90 km away
20. 2.146km ENE of Maneadero, B.C., MXMon, Sep 14, 3:17 AM PDT · 16445 days ago · 5 km deep · 83 km away
21. 2.045km E of Maneadero, B.C., MXMon, Sep 14, 4:38 AM PDT · 16445 days ago · 5 km deep · 84 km away
22. 1.65km S of Salton City, CAMon, Sep 14, 11:35 AM PDT · 16445 days ago · 5 km deep · 84 km away
23. 2.910km W of Alberto Oviedo Mota, B.C., MXWed, Sep 16, 12:25 AM PDT · 16443 days ago · 6 km deep · 60 km away
24. 2.234km NE of Ensenada, B.C., MXWed, Sep 16, 2:57 AM PDT · 16443 days ago · 6 km deep · 71 km away
25. 1.55km ENE of Westmorland, CAThu, Sep 17, 10:47 AM PDT · 16442 days ago · 11 km deep · 64 km away
26. 3.374km E of Maneadero, B.C., MXFri, Sep 18, 4:50 AM PDT · 16441 days ago · 6 km deep · 95 km away
27. 2.18km SW of Holtville, CAFri, Sep 18, 6:19 PM PDT · 16441 days ago · 10 km deep · 44 km away
28. 1.625km SSE of Ocotillo, CASat, Sep 19, 1:44 AM PDT · 16440 days ago · 4 km deep · 7 km away
29. 2.216km NNE of Pine Valley, CASat, Sep 19, 7:59 AM PDT · 16440 days ago · 9 km deep · 76 km away
30. 1.55km SSW of Salton City, CASat, Sep 19, 12:05 PM PDT · 16440 days ago · 3 km deep · 85 km away
31. 1.511km SW of Westmorland, CASat, Sep 19, 3:57 PM PDT · 16440 days ago · 10 km deep · 52 km away
32. 1.611km SW of Westmorland, CASat, Sep 19, 7:49 PM PDT · 16440 days ago · 8 km deep · 52 km away
33. 1.65km E of Borrego Springs, CASun, Sep 20, 6:00 PM PDT · 16439 days ago · 4 km deep · 97 km away
34. 2.610km NNE of Ocotillo Wells, CAMon, Sep 21, 8:21 AM PDT · 16438 days ago · 9 km deep · 84 km away
35. 1.615km E of Julian, CAMon, Sep 21, 9:30 PM PDT · 16437 days ago · 9 km deep · 85 km away
36. 1.910km NNE of Ocotillo Wells, CATue, Sep 22, 3:11 AM PDT · 16437 days ago · 11 km deep · 84 km away
37. 1.611km W of Calipatria, CATue, Sep 22, 10:16 PM PDT · 16436 days ago · 8 km deep · 72 km away
38. 1.711km NE of Julian, CATue, Sep 22, 10:44 PM PDT · 16436 days ago · 10 km deep · 96 km away
39. 1.832km ENE of Ensenada, B.C., MXWed, Sep 23, 9:10 AM PDT · 16436 days ago · 5 km deep · 76 km away
40. 1.512km NE of Julian, CAWed, Sep 23, 2:47 PM PDT · 16436 days ago · 8 km deep · 95 km away
41. 1.523km SE of Ocotillo Wells, CAThu, Sep 24, 12:16 AM PDT · 16435 days ago · 10 km deep · 54 km away
42. 2.324km ESE of Julian, CAThu, Sep 24, 2:41 AM PDT · 16435 days ago · 6 km deep · 76 km away
43. 1.721km WSW of Westmorland, CAThu, Sep 24, 2:16 PM PDT · 16435 days ago · 8 km deep · 47 km away
44. 1.720km WSW of Westmorland, CAThu, Sep 24, 11:05 PM PDT · 16434 days ago · 5 km deep · 49 km away
45. 1.624km ENE of Pine Valley, CAFri, Sep 25, 6:58 PM PDT · 16434 days ago · 5 km deep · 67 km away
46. 2.428km ENE of Ensenada, B.C., MXSat, Sep 26, 12:26 AM PDT · 16433 days ago · 6 km deep · 82 km away
47. 2.031km NE of Ensenada, B.C., MXSat, Sep 26, 5:40 AM PDT · 16433 days ago · 6 km deep · 74 km away
48. 2.09km SE of Julian, CASat, Sep 26, 11:54 AM PDT · 16433 days ago · 14 km deep · 88 km away
49. 2.710km SE of Julian, CASat, Sep 26, 3:55 PM PDT · 16433 days ago · 14 km deep · 87 km away
50. 2.254km E of Maneadero, B.C., MXSun, Sep 27, 2:37 AM PDT · 16432 days ago · 5 km deep · 90 km away
51. 2.130km W of Alberto Oviedo Mota, B.C., MXSun, Sep 27, 11:21 AM PDT · 16432 days ago · 6 km deep · 47 km away
52. 2.810km SW of Westmorland, CAMon, Sep 28, 2:20 AM PDT · 16431 days ago · 14 km deep · 54 km away
53. 1.85km NNW of Delta, B.C., MXMon, Sep 28, 8:38 AM PDT · 16431 days ago · 6 km deep · 57 km away
54. 2.05km N of Delta, B.C., MXMon, Sep 28, 8:55 AM PDT · 16431 days ago · 6 km deep · 60 km away
55. 2.69km NNW of Delta, B.C., MXMon, Sep 28, 9:12 AM PDT · 16431 days ago · 6 km deep · 56 km away
56. 2.47km NNW of Delta, B.C., MXMon, Sep 28, 9:21 AM PDT · 16431 days ago · 6 km deep · 56 km away
57. 2.06km N of Delta, B.C., MXMon, Sep 28, 9:38 AM PDT · 16431 days ago · 6 km deep · 58 km away
58. 1.56km WSW of Westmorland, CAMon, Sep 28, 10:43 AM PDT · 16431 days ago · 4 km deep · 58 km away
59. 1.710km SW of Westmorland, CAMon, Sep 28, 3:12 PM PDT · 16431 days ago · 11 km deep · 53 km away
60. 2.05km NNE of Delta, B.C., MXMon, Sep 28, 7:43 PM PDT · 16431 days ago · 6 km deep · 61 km away

The first 60 of 147.

Before

1. 2.19km NNW of Delta, B.C., MXFri, Sep 4, 5:32 AM PDT · 16455 days ago · 6 km deep · 54 km away
2. 1.57km SSW of Salton City, CAFri, Sep 4, 3:30 AM PDT · 16455 days ago · 3 km deep · 82 km away
3. 2.58km NNE of Julian, CAThu, Sep 3, 7:27 PM PDT · 16456 days ago · 17 km deep · 99 km away
4. 1.714km NNW of Delta, B.C., MXThu, Sep 3, 7:11 PM PDT · 16456 days ago · 6 km deep · 54 km away
5. 1.510km NNE of Julian, CAThu, Sep 3, 6:28 PM PDT · 16456 days ago · 13 km deep · 100 km away
6. 1.98km NNE of Julian, CAThu, Sep 3, 6:26 PM PDT · 16456 days ago · 16 km deep · 99 km away
7. 2.28km NNE of Julian, CAThu, Sep 3, 6:16 PM PDT · 16456 days ago · 17 km deep · 100 km away
8. 1.68km NNE of Julian, CAThu, Sep 3, 6:07 PM PDT · 16456 days ago · 14 km deep · 100 km away
9. 3.78km NE of Julian, CAThu, Sep 3, 5:39 PM PDT · 16456 days ago · 18 km deep · 98 km away
10. 1.87km NNE of Julian, CAThu, Sep 3, 5:38 PM PDT · 16456 days ago · 12 km deep · 100 km away
11. 1.78km NNE of Julian, CAThu, Sep 3, 5:36 PM PDT · 16456 days ago · 16 km deep · 100 km away
12. 2.58km NNE of Julian, CAThu, Sep 3, 5:34 PM PDT · 16456 days ago · 12 km deep · 100 km away
13. 1.59km NNE of Julian, CAThu, Sep 3, 5:34 PM PDT · 16456 days ago · 3 km deep · 100 km away
14. 1.89km NNE of Julian, CAThu, Sep 3, 5:31 PM PDT · 16456 days ago · 16 km deep · 100 km away
15. 4.08km NE of Julian, CAThu, Sep 3, 5:28 PM PDT · 16456 days ago · 18 km deep · 98 km away
16. 2.712km ESE of Puebla, B.C., MXThu, Sep 3, 1:31 PM PDT · 16456 days ago · 6 km deep · 54 km away
17. 1.64km NNW of Westmorland, CAThu, Sep 3, 7:45 AM PDT · 16456 days ago · 10 km deep · 64 km away
18. 1.86km NNW of Westmorland, CAThu, Sep 3, 1:03 AM PDT · 16456 days ago · 11 km deep · 66 km away
19. 1.614km SSW of Borrego Springs, CAWed, Sep 2, 3:18 AM PDT · 16457 days ago · 8 km deep · 92 km away
20. 1.55km SSW of Salton City, CAWed, Sep 2, 12:09 AM PDT · 16457 days ago · 3 km deep · 85 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci522300. Read Wed, Sep 23, 2026, 3:28 PM UTC.