M2.8 earthquake 9km WSW of Delta, B.C., MX

Magnitude

2.8 (mc), micro

Local time

Mon, May 4, 1981, 9:24 AM PDT

UTC

1981-05-04 16:24:02 UTC

Depth

5.8 km (3.6 mi), shallow

Epicenter

32.339° N, 115.287° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.0 km horizontally, 31.6 km in depth

Depth from

Operator assigned

Station coverage gap

225°, poorly surrounded by stations

Stations used

11

• Ciudad Guadalupe Victoria, MexicoPopulation 17,119. Forecast18 kmWNW
• Mexicali, MexicoPopulation 1,032,686. Forecast36 kmSSE

After

1. 1.54km SE of Niland, CAMon, May 4, 10:08 AM PDT · 16577 days ago · 8 km deep · 99 km away
2. 1.74km ESE of Niland, CAMon, May 4, 4:07 PM PDT · 16577 days ago · 3 km deep · 100 km away
3. 1.76km W of Westmorland, CAMon, May 4, 4:34 PM PDT · 16577 days ago · 9 km deep · 86 km away
4. 1.67km W of Westmorland, CAMon, May 4, 5:45 PM PDT · 16577 days ago · 10 km deep · 86 km away
5. 1.57km WSW of Calipatria, CAMon, May 4, 9:52 PM PDT · 16577 days ago · 10 km deep · 89 km away
6. 1.76km ESE of Niland, CATue, May 5, 2:58 AM PDT · 16576 days ago · 4 km deep · 99 km away
7. 1.821km WSW of Westmorland, CATue, May 5, 10:10 AM PDT · 16576 days ago · 7 km deep · 83 km away
8. 2.06km N of Westmorland, CATue, May 5, 11:11 AM PDT · 16576 days ago · 10 km deep · 89 km away
9. 1.913km WSW of Westmorland, CATue, May 5, 6:12 PM PDT · 16576 days ago · 6 km deep · 82 km away
10. 2.414km W of Alberto Oviedo Mota, B.C., MXWed, May 6, 12:56 AM PDT · 16576 days ago · 6 km deep · 14 km away
11. 1.87km WSW of Westmorland, CAWed, May 6, 1:14 AM PDT · 16576 days ago · 9 km deep · 85 km away
12. 2.97km SW of Delta, B.C., MXWed, May 6, 3:25 AM PDT · 16575 days ago · 6 km deep · 5 km away
13. 1.57km W of Westmorland, CAWed, May 6, 3:32 AM PDT · 16575 days ago · 4 km deep · 87 km away
14. 2.04km WNW of Delta, B.C., MXWed, May 6, 9:39 AM PDT · 16575 days ago · 6 km deep · 6 km away
15. 1.85km N of Westmorland, CAWed, May 6, 10:45 AM PDT · 16575 days ago · 10 km deep · 88 km away
16. 2.513km WSW of Westmorland, CAWed, May 6, 3:42 PM PDT · 16575 days ago · 11 km deep · 83 km away
17. 1.612km WSW of Westmorland, CAWed, May 6, 4:26 PM PDT · 16575 days ago · 5 km deep · 84 km away
18. 1.58km WSW of Westmorland, CAThu, May 7, 4:39 AM PDT · 16574 days ago · 8 km deep · 85 km away
19. 2.614km SW of Puebla, B.C., MXThu, May 7, 7:58 AM PDT · 16574 days ago · 6 km deep · 20 km away
20. 2.212km W of Alberto Oviedo Mota, B.C., MXThu, May 7, 10:02 AM PDT · 16574 days ago · 6 km deep · 13 km away
21. 1.820km SE of Ocotillo, CAFri, May 8, 5:55 AM PDT · 16573 days ago · 12 km deep · 61 km away
22. 1.510km ESE of Puebla, B.C., MXFri, May 8, 3:27 PM PDT · 16573 days ago · 6 km deep · 23 km away
23. 1.77km W of Westmorland, CAFri, May 8, 4:24 PM PDT · 16573 days ago · 9 km deep · 86 km away
24. 2.06km WSW of Calipatria, CASat, May 9, 7:17 AM PDT · 16572 days ago · 7 km deep · 90 km away
25. 1.613km WSW of Westmorland, CASat, May 9, 8:16 AM PDT · 16572 days ago · 6 km deep · 83 km away
26. 1.912km WSW of Westmorland, CASat, May 9, 10:07 AM PDT · 16572 days ago · 8 km deep · 83 km away
27. 1.913km WSW of Westmorland, CASat, May 9, 10:29 AM PDT · 16572 days ago · 10 km deep · 83 km away
28. 3.03km SSW of Brawley, CASat, May 9, 3:58 PM PDT · 16572 days ago · 19 km deep · 73 km away
29. 1.55km NNW of Westmorland, CASat, May 9, 7:09 PM PDT · 16572 days ago · 5 km deep · 88 km away
30. 1.66km ESE of Niland, CASat, May 9, 7:46 PM PDT · 16572 days ago · 4 km deep · 100 km away
31. 1.84km ESE of Niland, CASat, May 9, 8:42 PM PDT · 16572 days ago · 5 km deep · 99 km away
32. 1.85km NW of Delta, B.C., MXSun, May 10, 9:06 AM PDT · 16571 days ago · 6 km deep · 8 km away
33. 2.23km WNW of Delta, B.C., MXSun, May 10, 9:22 AM PDT · 16571 days ago · 6 km deep · 7 km away
34. 2.07km S of Delta, B.C., MXSun, May 10, 9:28 AM PDT · 16571 days ago · 6 km deep · 9 km away
35. 1.76km ESE of Niland, CASun, May 10, 2:19 PM PDT · 16571 days ago · 5 km deep · 99 km away
36. 2.218km W of Alberto Oviedo Mota, B.C., MXMon, May 11, 5:34 AM PDT · 16570 days ago · 6 km deep · 17 km away
37. 2.016km WSW of Alberto Oviedo Mota, B.C., MXMon, May 11, 6:59 AM PDT · 16570 days ago · 6 km deep · 19 km away
38. 2.06km WNW of Westmorland, CAMon, May 11, 2:13 PM PDT · 16570 days ago · 10 km deep · 88 km away
39. 1.56km ESE of Niland, CAMon, May 11, 2:33 PM PDT · 16570 days ago · 7 km deep · 98 km away
40. 1.86km NNE of Calipatria, CAMon, May 11, 3:18 PM PDT · 16570 days ago · 6 km deep · 95 km away
41. 1.57km ESE of Niland, CATue, May 12, 12:16 AM PDT · 16570 days ago · 3 km deep · 98 km away
42. 1.77km SSE of Brawley, CATue, May 12, 1:10 AM PDT · 16570 days ago · 14 km deep · 68 km away
43. 1.86km WSW of Calipatria, CAWed, May 13, 7:03 PM PDT · 16568 days ago · 7 km deep · 90 km away
44. 1.65km WNW of Westmorland, CAFri, May 15, 12:39 AM PDT · 16567 days ago · 3 km deep · 87 km away
45. 1.66km S of Niland, CASun, May 17, 12:02 PM PDT · 16564 days ago · 5 km deep · 97 km away
46. 1.610km ENE of Calexico, CASun, May 17, 6:33 PM PDT · 16564 days ago · 10 km deep · 45 km away
47. 1.66km NNE of Calipatria, CAMon, May 18, 10:26 AM PDT · 16563 days ago · 6 km deep · 95 km away
48. 1.713km WSW of Westmorland, CAMon, May 18, 10:37 AM PDT · 16563 days ago · 10 km deep · 84 km away
49. 1.56km NNE of Calipatria, CAMon, May 18, 10:59 AM PDT · 16563 days ago · 5 km deep · 95 km away
50. 1.66km NNE of Calipatria, CAMon, May 18, 12:23 PM PDT · 16563 days ago · 7 km deep · 95 km away
51. 1.513km WSW of Westmorland, CAMon, May 18, 12:47 PM PDT · 16563 days ago · 8 km deep · 83 km away
52. 1.613km SW of Westmorland, CAMon, May 18, 12:49 PM PDT · 16563 days ago · 5 km deep · 82 km away
53. 1.55km NNE of Calipatria, CAMon, May 18, 12:55 PM PDT · 16563 days ago · 5 km deep · 94 km away
54. 1.65km N of Calipatria, CAMon, May 18, 12:57 PM PDT · 16563 days ago · 5 km deep · 95 km away
55. 1.510km W of Calipatria, CAMon, May 18, 12:58 PM PDT · 16563 days ago · 13 km deep · 95 km away
56. 1.711km WNW of Calipatria, CAMon, May 18, 1:08 PM PDT · 16563 days ago · 11 km deep · 96 km away
57. 1.511km WNW of Calipatria, CAMon, May 18, 1:15 PM PDT · 16563 days ago · 9 km deep · 96 km away
58. 1.711km W of Calipatria, CAMon, May 18, 1:26 PM PDT · 16563 days ago · 11 km deep · 95 km away
59. 2.512km WNW of Calipatria, CAMon, May 18, 2:15 PM PDT · 16563 days ago · 13 km deep · 96 km away
60. 1.611km WNW of Calipatria, CAMon, May 18, 2:32 PM PDT · 16563 days ago · 11 km deep · 95 km away

The first 60 of 145.

Before

1. 1.66km ESE of Niland, CAMon, May 4, 8:25 AM PDT · 16577 days ago · 4 km deep · 99 km away
2. 1.58km ESE of Niland, CAMon, May 4, 7:15 AM PDT · 16577 days ago · 4 km deep · 97 km away
3. 1.76km ESE of Niland, CAMon, May 4, 5:08 AM PDT · 16577 days ago · 5 km deep · 98 km away
4. 2.15km ESE of Niland, CAMon, May 4, 4:51 AM PDT · 16577 days ago · 11 km deep · 99 km away
5. 1.87km W of Westmorland, CAMon, May 4, 4:28 AM PDT · 16577 days ago · 11 km deep · 88 km away
6. 1.67km W of Westmorland, CAMon, May 4, 4:09 AM PDT · 16577 days ago · 10 km deep · 87 km away
7. 1.87km SE of Niland, CAMon, May 4, 3:46 AM PDT · 16577 days ago · 7 km deep · 98 km away
8. 1.933km S of Progreso, B.C., MXMon, May 4, 2:24 AM PDT · 16577 days ago · 6 km deep · 28 km away
9. 1.57km ESE of Niland, CAMon, May 4, 2:14 AM PDT · 16577 days ago · 3 km deep · 98 km away
10. 2.15km ESE of Niland, CAMon, May 4, 1:58 AM PDT · 16577 days ago · 9 km deep · 99 km away
11. 2.26km ESE of Niland, CAMon, May 4, 12:00 AM PDT · 16578 days ago · 4 km deep · 99 km away
12. 1.67km ESE of Niland, CASun, May 3, 11:49 PM PDT · 16578 days ago · 5 km deep · 98 km away
13. 1.86km ESE of Niland, CASun, May 3, 11:28 PM PDT · 16578 days ago · 5 km deep · 98 km away
14. 2.636km WSW of Alberto Oviedo Mota, B.C., MXSun, May 3, 10:51 PM PDT · 16578 days ago · 6 km deep · 37 km away
15. 1.76km ESE of Niland, CASun, May 3, 10:34 PM PDT · 16578 days ago · 4 km deep · 99 km away
16. 2.04km SE of Niland, CASun, May 3, 8:35 PM PDT · 16578 days ago · 11 km deep · 99 km away
17. 1.76km W of Westmorland, CASun, May 3, 8:23 PM PDT · 16578 days ago · 11 km deep · 86 km away
18. 1.56km ESE of Niland, CASun, May 3, 7:34 PM PDT · 16578 days ago · 3 km deep · 98 km away
19. 1.57km ESE of Niland, CASun, May 3, 6:48 PM PDT · 16578 days ago · 3 km deep · 98 km away
20. 1.86km ESE of Niland, CASun, May 3, 6:46 PM PDT · 16578 days ago · 4 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci515365. Read Tue, Sep 22, 2026, 7:48 PM UTC.