M2.7 earthquake 4km WNW of Delta, B.C., MX

Magnitude

2.7 (ml), micro

Local time

Tue, Sep 26, 1978, 10:31 PM PDT

UTC

1978-09-27 05:31:34 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

32.372° N, 115.229° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.5 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.12

Depth from

Operator assigned

Station coverage gap

235°, poorly surrounded by stations

Stations used

22

• Ciudad Guadalupe Victoria, MexicoPopulation 17,119. Forecast15 kmNW
• Mexicali, MexicoPopulation 1,032,686. Forecast35 kmSE

After

1. 3.02km SSW of Delta, B.C., MXTue, Sep 26, 11:17 PM PDT · 17536 days ago · 10 km deep · 4 km away
2. 1.839km W of Alberto Oviedo Mota, B.C., MXTue, Sep 26, 11:21 PM PDT · 17536 days ago · 10 km deep · 39 km away
3. 2.14km WSW of Delta, B.C., MXTue, Sep 26, 11:50 PM PDT · 17536 days ago · 10 km deep · 3 km away
4. 2.25km NNW of Brawley, CAWed, Sep 27, 9:34 PM PDT · 17535 days ago · 10 km deep · 78 km away
5. 1.52km S of Brawley, CAThu, Sep 28, 10:05 PM PDT · 17534 days ago · 10 km deep · 71 km away
6. 1.66km ENE of Westmorland, CAFri, Sep 29, 2:26 PM PDT · 17533 days ago · 9 km deep · 82 km away
7. 2.832km WSW of Alberto Oviedo Mota, B.C., MXSat, Sep 30, 12:32 AM PDT · 17533 days ago · 6 km deep · 36 km away
8. 1.76km WNW of Delta, B.C., MXSat, Sep 30, 6:22 AM PDT · 17532 days ago · 6 km deep · 3 km away
9. 2.332km WSW of Alberto Oviedo Mota, B.C., MXSat, Sep 30, 7:06 AM PDT · 17532 days ago · 6 km deep · 36 km away
10. 2.140km SW of Alberto Oviedo Mota, B.C., MXSun, Oct 1, 3:48 AM PDT · 17531 days ago · 6 km deep · 48 km away
11. 2.783km SSW of Alberto Oviedo Mota, B.C., MXSun, Oct 1, 6:18 PM PDT · 17531 days ago · 6 km deep · 95 km away
12. 2.039km WSW of Alberto Oviedo Mota, B.C., MXMon, Oct 2, 3:24 AM PDT · 17530 days ago · 6 km deep · 43 km away
13. 1.923km W of Westmorland, CAMon, Oct 2, 5:13 PM PDT · 17530 days ago · 10 km deep · 96 km away
14. 2.06km WNW of Estacion Coahuila, B.C., MXTue, Oct 3, 6:50 AM PDT · 17529 days ago · 6 km deep · 23 km away
15. 1.814km WSW of Niland, CAWed, Oct 4, 4:55 AM PDT · 17528 days ago · 5 km deep · 99 km away
16. 1.62km WNW of Brawley, CAWed, Oct 4, 2:55 PM PDT · 17528 days ago · 8 km deep · 75 km away
17. 1.86km NE of Westmorland, CAThu, Oct 5, 1:39 PM PDT · 17527 days ago · 10 km deep · 85 km away
18. 1.95km SSE of Mexicali, B.C., MXThu, Oct 5, 3:51 PM PDT · 17527 days ago · 6 km deep · 33 km away
19. 1.76km NE of Imperial, CAFri, Oct 6, 7:31 AM PDT · 17526 days ago · 10 km deep · 63 km away
20. 1.81km SSW of Brawley, CASun, Oct 8, 10:48 AM PDT · 17524 days ago · 10 km deep · 72 km away
21. 2.07km SW of Brawley, CASun, Oct 8, 1:14 PM PDT · 17524 days ago · 6 km deep · 70 km away
22. 2.611km SW of Puebla, B.C., MXSun, Oct 8, 3:35 PM PDT · 17524 days ago · 10 km deep · 24 km away
23. 1.76km NNE of Puebla, B.C., MXMon, Oct 9, 6:34 AM PDT · 17523 days ago · 10 km deep · 29 km away
24. 2.210km SW of Puebla, B.C., MXMon, Oct 9, 11:53 PM PDT · 17523 days ago · 10 km deep · 22 km away
25. 1.79km SW of Puebla, B.C., MXTue, Oct 10, 1:00 AM PDT · 17523 days ago · 10 km deep · 24 km away
26. 2.42km NW of Guadalupe Victoria, B.C., MXThu, Oct 12, 12:02 PM PDT · 17520 days ago · 10 km deep · 13 km away
27. 1.88km SW of Holtville, CASat, Oct 14, 6:21 PM PDT · 17518 days ago · 10 km deep · 48 km away
28. 2.368km SW of Alberto Oviedo Mota, B.C., MXSun, Oct 15, 2:54 AM PDT · 17517 days ago · 6 km deep · 75 km away
29. 2.58km E of Puebla, B.C., MXMon, Oct 16, 12:33 AM PDT · 17517 days ago · 10 km deep · 23 km away
30. 2.971km E of Maneadero, B.C., MXTue, Oct 17, 7:22 AM PDT · 17515 days ago · 6 km deep · 97 km away
31. 2.670km E of Maneadero, B.C., MXTue, Oct 17, 10:17 AM PDT · 17515 days ago · 6 km deep · 99 km away
32. 1.910km N of Delta, B.C., MXWed, Oct 18, 5:27 AM PDT · 17514 days ago · 6 km deep · 9 km away
33. 2.42km WSW of Brawley, CAWed, Oct 18, 8:23 AM PDT · 17514 days ago · 10 km deep · 74 km away
34. 2.82km SW of Brawley, CAWed, Oct 18, 8:26 AM PDT · 17514 days ago · 10 km deep · 73 km away
35. 1.52km W of Brawley, CAWed, Oct 18, 8:26 AM PDT · 17514 days ago · 10 km deep · 74 km away
36. 1.622km SW of Westmorland, CAThu, Oct 19, 4:39 AM PDT · 17513 days ago · 8 km deep · 80 km away
37. 2.013km W of Alberto Oviedo Mota, B.C., MXThu, Oct 19, 6:27 AM PDT · 17513 days ago · 6 km deep · 17 km away
38. 2.55km NW of Holtville, CASat, Oct 21, 1:55 AM PDT · 17512 days ago · 4 km deep · 55 km away
39. 2.833km WSW of Alberto Oviedo Mota, B.C., MXSun, Oct 22, 2:14 AM PDT · 17511 days ago · 6 km deep · 39 km away
40. 2.839km WSW of Alberto Oviedo Mota, B.C., MXSun, Oct 22, 1:34 PM PDT · 17510 days ago · 6 km deep · 45 km away
41. 1.914km NW of Ocotillo, CASun, Oct 22, 1:59 PM PDT · 17510 days ago · 7 km deep · 95 km away
42. 1.912km SW of Westmorland, CASun, Oct 22, 5:33 PM PDT · 17510 days ago · 7 km deep · 79 km away
43. 1.61km NW of El Centro, CASun, Oct 22, 10:16 PM PDT · 17510 days ago · 10 km deep · 57 km away
44. 1.65km ESE of Westmorland, CAMon, Oct 23, 1:20 PM PDT · 17509 days ago · 7 km deep · 80 km away
45. 1.74km E of Westmorland, CAMon, Oct 23, 2:28 PM PDT · 17509 days ago · 8 km deep · 80 km away
46. 1.54km ESE of Westmorland, CAMon, Oct 23, 4:31 PM PDT · 17509 days ago · 7 km deep · 80 km away
47. 2.163km SW of Alberto Oviedo Mota, B.C., MXMon, Oct 23, 4:41 PM PDT · 17509 days ago · 6 km deep · 70 km away
48. 2.04km ESE of Westmorland, CAMon, Oct 23, 8:44 PM PDT · 17509 days ago · 8 km deep · 80 km away
49. 1.75km ESE of Westmorland, CAMon, Oct 23, 10:11 PM PDT · 17509 days ago · 7 km deep · 80 km away
50. 1.75km ESE of Westmorland, CAMon, Oct 23, 10:53 PM PDT · 17509 days ago · 8 km deep · 79 km away
51. 1.55km ESE of Westmorland, CAMon, Oct 23, 11:54 PM PDT · 17509 days ago · 8 km deep · 80 km away
52. 1.78km WSW of Niland, CAMon, Oct 23, 11:59 PM PDT · 17509 days ago · 5 km deep · 99 km away
53. 1.64km ESE of Westmorland, CATue, Oct 24, 12:20 AM PDT · 17509 days ago · 7 km deep · 80 km away
54. 2.17km N of Westmorland, CATue, Oct 24, 11:52 PM PDT · 17508 days ago · 10 km deep · 88 km away
55. 2.250km SSW of Progreso, B.C., MXWed, Oct 25, 10:07 PM PDT · 17507 days ago · 6 km deep · 58 km away
56. 2.268km ENE of Maneadero, B.C., MXFri, Oct 27, 4:20 PM PDT · 17505 days ago · 6 km deep · 82 km away
57. 2.05km NW of Delta, B.C., MXFri, Oct 27, 6:37 PM PDT · 17505 days ago · 10 km deep · 1 km away
58. 2.24km WNW of Delta, B.C., MXFri, Oct 27, 8:50 PM PDT · 17505 days ago · 10 km deep · 1 km away
59. 1.95km W of Holtville, CASat, Oct 28, 3:04 AM PDT · 17504 days ago · 5 km deep · 53 km away
60. 2.718km W of Progreso, B.C., MXSat, Oct 28, 4:49 AM PDT · 17504 days ago · 4 km deep · 57 km away

The first 60 of 145.

Before

1. 2.52km NW of Delta, B.C., MXTue, Sep 26, 9:03 PM PDT · 17536 days ago · 10 km deep · 2 km away
2. 1.524km W of Westmorland, CATue, Sep 26, 2:06 AM PDT · 17537 days ago · 15 km deep · 98 km away
3. 2.215km SW of Delta, B.C., MXMon, Sep 25, 9:08 PM PDT · 17537 days ago · 6 km deep · 14 km away
4. 1.813km WSW of Niland, CASun, Sep 24, 8:19 AM PDT · 17538 days ago · 5 km deep · 99 km away
5. 1.625km SSE of Ocotillo, CASat, Sep 23, 7:57 AM PDT · 17539 days ago · 4 km deep · 63 km away
6. 1.513km WSW of Niland, CASat, Sep 23, 3:32 AM PDT · 17539 days ago · 5 km deep · 100 km away
7. 1.713km WSW of Niland, CAFri, Sep 22, 9:07 AM PDT · 17540 days ago · 5 km deep · 100 km away
8. 1.913km WSW of Niland, CAFri, Sep 22, 5:18 AM PDT · 17540 days ago · 5 km deep · 100 km away
9. 1.919km W of Alberto Oviedo Mota, B.C., MXFri, Sep 22, 12:44 AM PDT · 17541 days ago · 6 km deep · 21 km away
10. 2.518km W of Alberto Oviedo Mota, B.C., MXThu, Sep 21, 11:05 PM PDT · 17541 days ago · 6 km deep · 21 km away
11. 1.518km W of Imperial, CAWed, Sep 20, 9:45 AM PDT · 17542 days ago · 9 km deep · 74 km away
12. 1.88km E of Puebla, B.C., MXWed, Sep 20, 9:27 AM PDT · 17542 days ago · 2 km deep · 23 km away
13. 1.710km ESE of Puebla, B.C., MXWed, Sep 20, 7:10 AM PDT · 17542 days ago · 9 km deep · 17 km away
14. 2.261km WSW of Alberto Oviedo Mota, B.C., MXWed, Sep 20, 2:38 AM PDT · 17543 days ago · 6 km deep · 65 km away
15. 2.762km E of Maneadero, B.C., MXTue, Sep 19, 5:58 AM PDT · 17543 days ago · 6 km deep · 91 km away
16. 2.514km WSW of Delta, B.C., MXSun, Sep 17, 11:25 PM PDT · 17545 days ago · 6 km deep · 12 km away
17. 2.754km S of Estacion Coahuila, B.C., MXSat, Sep 16, 12:00 PM PDT · 17546 days ago · 6 km deep · 77 km away
18. 1.73km NNE of Brawley, CAFri, Sep 15, 8:39 AM PDT · 17547 days ago · 10 km deep · 75 km away
19. 1.82km ESE of Westmorland, CAFri, Sep 15, 4:39 AM PDT · 17547 days ago · 7 km deep · 81 km away
20. 1.73km ESE of Westmorland, CAThu, Sep 14, 11:35 PM PDT · 17548 days ago · 7 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3313536. Read Wed, Sep 30, 2026, 9:09 PM UTC.