M3.5 earthquake 9km WSW of Puebla, B.C., MX

Magnitude

3.5 (ml), minor

Local time

Wed, Sep 9, 1981, 11:06 AM PDT

UTC

1981-09-09 18:06:20 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

32.530° N, 115.443° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.7 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.19

Depth from

Operator assigned

Station coverage gap

186°, poorly surrounded by stations

Stations used

47

• Puebla, MexicoPopulation 15,168. Forecast9 kmWSW
• Mexicali, MexicoPopulation 1,032,686. Forecast11 kmS

After

1. 1.53km SW of Brawley, CAWed, Sep 9, 1:55 PM PDT · 16457 days ago · 14 km deep · 48 km away
2. 2.065km WSW of Alberto Oviedo Mota, B.C., MXFri, Sep 11, 11:58 AM PDT · 16455 days ago · 6 km deep · 74 km away
3. 2.911km NE of Ocotillo Wells, CASun, Sep 13, 8:53 AM PDT · 16453 days ago · 8 km deep · 97 km away
4. 1.65km S of Salton City, CAMon, Sep 14, 11:35 AM PDT · 16452 days ago · 5 km deep · 94 km away
5. 2.910km W of Alberto Oviedo Mota, B.C., MXWed, Sep 16, 12:25 AM PDT · 16450 days ago · 6 km deep · 38 km away
6. 1.55km ENE of Westmorland, CAThu, Sep 17, 10:47 AM PDT · 16449 days ago · 11 km deep · 59 km away
7. 2.18km SW of Holtville, CAFri, Sep 18, 6:19 PM PDT · 16448 days ago · 10 km deep · 26 km away
8. 1.625km SSE of Ocotillo, CASat, Sep 19, 1:44 AM PDT · 16447 days ago · 4 km deep · 40 km away
9. 1.55km SSW of Salton City, CASat, Sep 19, 12:05 PM PDT · 16447 days ago · 3 km deep · 95 km away
10. 1.511km SW of Westmorland, CASat, Sep 19, 3:57 PM PDT · 16447 days ago · 10 km deep · 55 km away
11. 1.611km SW of Westmorland, CASat, Sep 19, 7:49 PM PDT · 16447 days ago · 8 km deep · 55 km away
12. 2.610km NNE of Ocotillo Wells, CAMon, Sep 21, 8:21 AM PDT · 16445 days ago · 9 km deep · 98 km away
13. 1.910km NNE of Ocotillo Wells, CATue, Sep 22, 3:11 AM PDT · 16444 days ago · 11 km deep · 98 km away
14. 1.611km W of Calipatria, CATue, Sep 22, 10:16 PM PDT · 16443 days ago · 8 km deep · 70 km away
15. 1.523km SE of Ocotillo Wells, CAThu, Sep 24, 12:16 AM PDT · 16442 days ago · 10 km deep · 71 km away
16. 1.721km WSW of Westmorland, CAThu, Sep 24, 2:16 PM PDT · 16442 days ago · 8 km deep · 57 km away
17. 1.720km WSW of Westmorland, CAThu, Sep 24, 11:05 PM PDT · 16441 days ago · 5 km deep · 57 km away
18. 1.624km ENE of Pine Valley, CAFri, Sep 25, 6:58 PM PDT · 16441 days ago · 5 km deep · 93 km away
19. 2.130km W of Alberto Oviedo Mota, B.C., MXSun, Sep 27, 11:21 AM PDT · 16439 days ago · 6 km deep · 38 km away
20. 2.810km SW of Westmorland, CAMon, Sep 28, 2:20 AM PDT · 16438 days ago · 14 km deep · 57 km away
21. 1.85km NNW of Delta, B.C., MXMon, Sep 28, 8:38 AM PDT · 16438 days ago · 6 km deep · 26 km away
22. 2.05km N of Delta, B.C., MXMon, Sep 28, 8:55 AM PDT · 16438 days ago · 6 km deep · 28 km away
23. 2.69km NNW of Delta, B.C., MXMon, Sep 28, 9:12 AM PDT · 16438 days ago · 6 km deep · 24 km away
24. 2.47km NNW of Delta, B.C., MXMon, Sep 28, 9:21 AM PDT · 16438 days ago · 6 km deep · 24 km away
25. 2.06km N of Delta, B.C., MXMon, Sep 28, 9:38 AM PDT · 16438 days ago · 6 km deep · 27 km away
26. 1.56km WSW of Westmorland, CAMon, Sep 28, 10:43 AM PDT · 16438 days ago · 4 km deep · 60 km away
27. 1.710km SW of Westmorland, CAMon, Sep 28, 3:12 PM PDT · 16438 days ago · 11 km deep · 56 km away
28. 2.05km NNE of Delta, B.C., MXMon, Sep 28, 7:43 PM PDT · 16438 days ago · 6 km deep · 29 km away
29. 1.56km N of Delta, B.C., MXMon, Sep 28, 9:25 PM PDT · 16437 days ago · 6 km deep · 28 km away
30. 1.511km ESE of Puebla, B.C., MXTue, Sep 29, 3:03 PM PDT · 16437 days ago · 6 km deep · 19 km away
31. 1.612km WNW of Delta, B.C., MXTue, Sep 29, 5:03 PM PDT · 16437 days ago · 6 km deep · 21 km away
32. 1.78km SW of Heber, CATue, Sep 29, 7:23 PM PDT · 16437 days ago · 6 km deep · 22 km away
33. 1.55km SSW of Salton City, CAWed, Sep 30, 1:17 AM PDT · 16436 days ago · 3 km deep · 95 km away
34. 2.153km E of Maneadero, B.C., MXThu, Oct 1, 11:59 PM PDT · 16434 days ago · 5 km deep · 98 km away
35. 2.137km NE of Ensenada, B.C., MXSat, Oct 3, 12:19 AM PDT · 16433 days ago · 6 km deep · 98 km away
36. 2.220km SW of Ocotillo, CASat, Oct 3, 7:49 AM PDT · 16433 days ago · 12 km deep · 66 km away
37. 2.836km NE of Ensenada, B.C., MXSat, Oct 3, 5:49 PM PDT · 16433 days ago · 6 km deep · 99 km away
38. 1.928km WSW of Progreso, B.C., MXSun, Oct 4, 5:35 AM PDT · 16432 days ago · 1 km deep · 38 km away
39. 2.128km SW of Progreso, B.C., MXSun, Oct 4, 5:42 AM PDT · 16432 days ago · 6 km deep · 37 km away
40. 1.68km WSW of Salton City, CASun, Oct 4, 6:58 PM PDT · 16432 days ago · 2 km deep · 98 km away
41. 1.75km S of Salton City, CAMon, Oct 5, 10:16 AM PDT · 16431 days ago · 4 km deep · 94 km away
42. 2.310km N of Westmorland, CAMon, Oct 5, 1:53 PM PDT · 16431 days ago · 13 km deep · 69 km away
43. 3.415km WNW of Delta, B.C., MXTue, Oct 6, 11:22 AM PDT · 16430 days ago · 6 km deep · 16 km away
44. 1.712km WSW of Westmorland, CATue, Oct 6, 2:39 PM PDT · 16430 days ago · 4 km deep · 57 km away
45. 2.530km WSW of Alberto Oviedo Mota, B.C., MXTue, Oct 6, 4:06 PM PDT · 16430 days ago · 6 km deep · 42 km away
46. 2.012km WNW of Delta, B.C., MXTue, Oct 6, 6:41 PM PDT · 16430 days ago · 6 km deep · 20 km away
47. 1.56km NNE of Westmorland, CAWed, Oct 7, 2:19 PM PDT · 16429 days ago · 10 km deep · 64 km away
48. 1.57km SW of Holtville, CAWed, Oct 7, 5:58 PM PDT · 16429 days ago · 17 km deep · 27 km away
49. 2.134km ENE of Ensenada, B.C., MXWed, Oct 7, 11:13 PM PDT · 16428 days ago · 6 km deep · 100 km away
50. 1.812km WNW of Delta, B.C., MXThu, Oct 8, 3:56 AM PDT · 16428 days ago · 6 km deep · 19 km away
51. 2.036km NE of Ensenada, B.C., MXSat, Oct 10, 2:03 AM PDT · 16426 days ago · 6 km deep · 98 km away
52. 1.721km WSW of Progreso, B.C., MXSat, Oct 10, 4:17 AM PDT · 16426 days ago · 4 km deep · 34 km away
53. 2.342km NE of Ensenada, B.C., MXSun, Oct 11, 5:07 AM PDT · 16425 days ago · 6 km deep · 92 km away
54. 1.69km S of Holtville, CASun, Oct 11, 6:22 AM PDT · 16425 days ago · 6 km deep · 23 km away
55. 1.79km SSW of Holtville, CASun, Oct 11, 6:23 AM PDT · 16425 days ago · 6 km deep · 23 km away
56. 1.62km E of Niland, CATue, Oct 13, 3:04 AM PDT · 16423 days ago · 2 km deep · 79 km away
57. 1.616km SW of Progreso, B.C., MXTue, Oct 13, 9:00 AM PDT · 16423 days ago · 4 km deep · 26 km away
58. 1.516km WSW of Progreso, B.C., MXTue, Oct 13, 9:08 AM PDT · 16423 days ago · 4 km deep · 28 km away
59. 1.517km SW of Progreso, B.C., MXTue, Oct 13, 9:49 AM PDT · 16423 days ago · 2 km deep · 28 km away
60. 1.716km WSW of Progreso, B.C., MXTue, Oct 13, 1:38 PM PDT · 16423 days ago · 4 km deep · 28 km away

The first 60 of 104.

Before

1. 1.76km SSW of Salton City, CATue, Sep 8, 4:54 PM PDT · 16458 days ago · 3 km deep · 94 km away
2. 2.471km ENE of Maneadero, B.C., MXMon, Sep 7, 6:39 PM PDT · 16459 days ago · 6 km deep · 79 km away
3. 1.66km SSW of Salton City, CAMon, Sep 7, 3:00 AM PDT · 16459 days ago · 3 km deep · 94 km away
4. 1.66km SSW of Salton City, CASun, Sep 6, 10:44 PM PDT · 16459 days ago · 0 km deep · 95 km away
5. 2.016km W of Progreso, B.C., MXSun, Sep 6, 10:11 PM PDT · 16459 days ago · 14 km deep · 29 km away
6. 1.66km SSW of Salton City, CASun, Sep 6, 7:41 PM PDT · 16460 days ago · 3 km deep · 94 km away
7. 1.65km SSW of Salton City, CASun, Sep 6, 6:05 PM PDT · 16460 days ago · 4 km deep · 95 km away
8. 2.342km ENE of Maneadero, B.C., MXSun, Sep 6, 7:39 AM PDT · 16460 days ago · 5 km deep · 98 km away
9. 1.68km SW of Holtville, CASun, Sep 6, 3:26 AM PDT · 16460 days ago · 6 km deep · 26 km away
10. 2.221km SW of Ocotillo Wells, CASat, Sep 5, 11:21 PM PDT · 16460 days ago · 7 km deep · 95 km away
11. 1.822km WSW of Progreso, B.C., MXFri, Sep 4, 3:45 PM PDT · 16462 days ago · 8 km deep · 34 km away
12. 2.19km NNW of Delta, B.C., MXFri, Sep 4, 5:32 AM PDT · 16462 days ago · 6 km deep · 22 km away
13. 1.57km SSW of Salton City, CAFri, Sep 4, 3:30 AM PDT · 16462 days ago · 3 km deep · 93 km away
14. 1.714km NNW of Delta, B.C., MXThu, Sep 3, 7:11 PM PDT · 16463 days ago · 6 km deep · 20 km away
15. 2.712km ESE of Puebla, B.C., MXThu, Sep 3, 1:31 PM PDT · 16463 days ago · 6 km deep · 19 km away
16. 1.64km NNW of Westmorland, CAThu, Sep 3, 7:45 AM PDT · 16463 days ago · 10 km deep · 63 km away
17. 1.86km NNW of Westmorland, CAThu, Sep 3, 1:03 AM PDT · 16463 days ago · 11 km deep · 65 km away
18. 1.55km SSW of Salton City, CAWed, Sep 2, 12:09 AM PDT · 16464 days ago · 3 km deep · 95 km away
19. 2.337km NE of Ensenada, B.C., MXTue, Sep 1, 9:44 PM PDT · 16464 days ago · 6 km deep · 97 km away
20. 1.937km NE of Ensenada, B.C., MXTue, Sep 1, 9:37 PM PDT · 16464 days ago · 6 km deep · 98 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci522773 (also filed as usp0001fs3). Read Wed, Sep 30, 2026, 2:57 PM UTC.