M2.1 earthquake 13km N of Delta, B.C., MX

Magnitude

2.1 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Oct 20, 1979, 8:41 PM PDT

UTC

1979-10-21 03:41:17 UTC

Depth

15.0 km (9.3 mi), shallow

Epicenter

32.474° N, 115.209° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.8 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.25

Depth from

Operator assigned

Station coverage gap

211°, poorly surrounded by stations

Stations used

8

• Puebla, MexicoPopulation 15,168. Forecast17 kmSE
• Mexicali, MexicoPopulation 1,032,686. Forecast29 kmSE

After

1. 2.312km N of Delta, B.C., MXSat, Oct 20, 9:01 PM PDT · 17148 days ago · 15 km deep · 3 km away
2. 2.511km N of Delta, B.C., MXSat, Oct 20, 9:31 PM PDT · 17148 days ago · 15 km deep · 4 km away
3. 1.611km WNW of Calipatria, CASat, Oct 20, 9:49 PM PDT · 17148 days ago · 1 km deep · 86 km away
4. 2.513km WSW of Niland, CASat, Oct 20, 9:59 PM PDT · 17148 days ago · 4 km deep · 88 km away
5. 2.311km WNW of Calipatria, CASat, Oct 20, 10:04 PM PDT · 17148 days ago · 4 km deep · 87 km away
6. 2.09km W of Westmorland, CASat, Oct 20, 10:23 PM PDT · 17148 days ago · 9 km deep · 79 km away
7. 2.14km ESE of Westmorland, CASat, Oct 20, 10:55 PM PDT · 17148 days ago · 9 km deep · 71 km away
8. 2.115km WSW of Tecolots, B.C., MXSat, Oct 20, 11:09 PM PDT · 17148 days ago · 6 km deep · 9 km away
9. 1.85km ESE of Westmorland, CASun, Oct 21, 12:46 AM PDT · 17148 days ago · 10 km deep · 70 km away
10. 2.011km WNW of Calipatria, CASun, Oct 21, 1:23 AM PDT · 17148 days ago · 5 km deep · 85 km away
11. 2.34km S of Brawley, CASun, Oct 21, 3:10 AM PDT · 17148 days ago · 11 km deep · 61 km away
12. 2.18km NE of Mexicali, B.C., MXSun, Oct 21, 3:20 AM PDT · 17148 days ago · 15 km deep · 31 km away
13. 2.14km S of Brawley, CASun, Oct 21, 3:38 AM PDT · 17148 days ago · 11 km deep · 60 km away
14. 2.39km NNE of Delta, B.C., MXSun, Oct 21, 4:44 AM PDT · 17148 days ago · 11 km deep · 6 km away
15. 1.72km SSE of Brawley, CASun, Oct 21, 4:57 AM PDT · 17148 days ago · 6 km deep · 61 km away
16. 1.93km SSE of Brawley, CASun, Oct 21, 5:16 AM PDT · 17148 days ago · 11 km deep · 60 km away
17. 2.311km E of Puebla, B.C., MXSun, Oct 21, 7:33 AM PDT · 17148 days ago · 15 km deep · 10 km away
18. 2.013km N of Delta, B.C., MXSun, Oct 21, 9:44 AM PDT · 17148 days ago · 10 km deep · 3 km away
19. 2.06km SSE of Niland, CASun, Oct 21, 10:21 AM PDT · 17148 days ago · 6 km deep · 83 km away
20. 2.05km E of Westmorland, CASun, Oct 21, 10:35 AM PDT · 17148 days ago · 12 km deep · 71 km away
21. 1.815km SSE of Bombay Beach, CASun, Oct 21, 10:39 AM PDT · 17148 days ago · 5 km deep · 94 km away
22. 1.95km ESE of Westmorland, CASun, Oct 21, 10:46 AM PDT · 17148 days ago · 11 km deep · 70 km away
23. 1.912km NNW of Delta, B.C., MXSun, Oct 21, 11:15 AM PDT · 17148 days ago · 6 km deep · 2 km away
24. 3.27km SSE of Brawley, CASun, Oct 21, 11:17 AM PDT · 17148 days ago · 15 km deep · 57 km away
25. 1.510km WNW of Calipatria, CASun, Oct 21, 11:41 AM PDT · 17148 days ago · 5 km deep · 84 km away
26. 2.98km SSW of Holtville, CASun, Oct 21, 12:04 PM PDT · 17148 days ago · 15 km deep · 36 km away
27. 2.014km NNW of Delta, B.C., MXSun, Oct 21, 12:21 PM PDT · 17148 days ago · 15 km deep · 6 km away
28. 2.943km ESE of Estacion Coahuila, B.C., MXSun, Oct 21, 12:46 PM GMT-7 · 17147 days ago · 15 km deep · 77 km away
29. 2.69km NE of Mexicali, B.C., MXSun, Oct 21, 12:54 PM PDT · 17147 days ago · 15 km deep · 33 km away
30. 3.08km N of Delta, B.C., MXSun, Oct 21, 1:27 PM PDT · 17147 days ago · 15 km deep · 6 km away
31. 2.48km NNE of Delta, B.C., MXSun, Oct 21, 1:32 PM PDT · 17147 days ago · 15 km deep · 6 km away
32. 1.66km E of Westmorland, CASun, Oct 21, 1:48 PM PDT · 17147 days ago · 11 km deep · 71 km away
33. 2.010km N of Delta, B.C., MXSun, Oct 21, 1:53 PM PDT · 17147 days ago · 10 km deep · 4 km away
34. 2.17km NE of Imperial, CASun, Oct 21, 2:14 PM PDT · 17147 days ago · 13 km deep · 55 km away
35. 1.82km WNW of Brawley, CASun, Oct 21, 5:04 PM PDT · 17147 days ago · 14 km deep · 65 km away
36. 2.28km WSW of Holtville, CASun, Oct 21, 5:43 PM PDT · 17147 days ago · 15 km deep · 42 km away
37. 1.75km S of Brawley, CASun, Oct 21, 6:57 PM PDT · 17147 days ago · 14 km deep · 59 km away
38. 1.67km SW of Holtville, CASun, Oct 21, 8:23 PM PDT · 17147 days ago · 12 km deep · 39 km away
39. 1.75km NE of Westmorland, CASun, Oct 21, 9:05 PM PDT · 17147 days ago · 6 km deep · 76 km away
40. 1.96km NNE of Delta, B.C., MXSun, Oct 21, 9:29 PM PDT · 17147 days ago · 6 km deep · 8 km away
41. 2.28km WSW of Holtville, CASun, Oct 21, 9:40 PM PDT · 17147 days ago · 15 km deep · 42 km away
42. 1.98km NNE of Delta, B.C., MXSun, Oct 21, 11:01 PM PDT · 17147 days ago · 4 km deep · 7 km away
43. 2.49km N of Delta, B.C., MXSun, Oct 21, 11:07 PM PDT · 17147 days ago · 15 km deep · 5 km away
44. 2.68km WSW of Holtville, CAMon, Oct 22, 3:40 AM PDT · 17147 days ago · 15 km deep · 42 km away
45. 1.710km WSW of Niland, CAMon, Oct 22, 5:02 AM PDT · 17147 days ago · 5 km deep · 91 km away
46. 2.36km E of Westmorland, CAMon, Oct 22, 6:26 AM PDT · 17147 days ago · 12 km deep · 71 km away
47. 2.19km SSW of Holtville, CAMon, Oct 22, 6:36 AM PDT · 17147 days ago · 15 km deep · 34 km away
48. 1.58km E of Imperial, CAMon, Oct 22, 7:52 AM PDT · 17147 days ago · 13 km deep · 49 km away
49. 1.711km E of Calipatria, CAMon, Oct 22, 9:05 AM PDT · 17147 days ago · 6 km deep · 73 km away
50. 1.610km WNW of Calipatria, CAMon, Oct 22, 9:26 AM PDT · 17147 days ago · 2 km deep · 85 km away
51. 1.55km NNE of Calipatria, CAMon, Oct 22, 11:43 AM PDT · 17147 days ago · 6 km deep · 81 km away
52. 2.36km NE of Imperial, CAMon, Oct 22, 11:48 AM PDT · 17147 days ago · 13 km deep · 55 km away
53. 2.413km N of Delta, B.C., MXMon, Oct 22, 12:06 PM PDT · 17147 days ago · 15 km deep · 1 km away
54. 2.07km SW of Holtville, CAMon, Oct 22, 12:22 PM PDT · 17147 days ago · 15 km deep · 38 km away
55. 1.78km N of Brawley, CAMon, Oct 22, 2:02 PM PDT · 17146 days ago · 11 km deep · 71 km away
56. 2.512km N of Delta, B.C., MXMon, Oct 22, 2:17 PM PDT · 17146 days ago · 15 km deep · 2 km away
57. 2.59km SSE of Brawley, CAMon, Oct 22, 3:04 PM PDT · 17146 days ago · 13 km deep · 55 km away
58. 1.97km SW of Holtville, CAMon, Oct 22, 3:58 PM PDT · 17146 days ago · 15 km deep · 38 km away
59. 1.57km SW of Holtville, CAMon, Oct 22, 6:04 PM PDT · 17146 days ago · 15 km deep · 39 km away
60. 2.97km NNE of Imperial, CAMon, Oct 22, 6:13 PM PDT · 17146 days ago · 15 km deep · 57 km away

The first 60 of at least 202.

Before

1. 1.53km E of Westmorland, CASat, Oct 20, 8:23 PM PDT · 17148 days ago · 11 km deep · 72 km away
2. 2.66km E of Westmorland, CASat, Oct 20, 5:04 PM PDT · 17148 days ago · 12 km deep · 70 km away
3. 1.512km NE of Delta, B.C., MXSat, Oct 20, 3:42 PM PDT · 17148 days ago · 10 km deep · 10 km away
4. 2.210km N of Delta, B.C., MXSat, Oct 20, 3:41 PM PDT · 17148 days ago · 15 km deep · 4 km away
5. 2.715km ESE of Puebla, B.C., MXSat, Oct 20, 3:33 PM PDT · 17148 days ago · 15 km deep · 2 km away
6. 2.57km NNE of Imperial, CASat, Oct 20, 3:32 PM PDT · 17148 days ago · 12 km deep · 58 km away
7. 2.010km WNW of Calipatria, CASat, Oct 20, 2:35 PM PDT · 17148 days ago · 6 km deep · 85 km away
8. 2.010km WNW of Calipatria, CASat, Oct 20, 1:58 PM PDT · 17148 days ago · 12 km deep · 84 km away
9. 3.011km WNW of Calipatria, CASat, Oct 20, 1:52 PM PDT · 17148 days ago · 10 km deep · 85 km away
10. 2.58km ENE of Imperial, CASat, Oct 20, 12:53 PM PDT · 17148 days ago · 15 km deep · 52 km away
11. 2.14km S of Brawley, CASat, Oct 20, 12:14 PM PDT · 17149 days ago · 10 km deep · 60 km away
12. 2.68km ENE of Imperial, CASat, Oct 20, 11:44 AM PDT · 17149 days ago · 14 km deep · 52 km away
13. 2.45km ESE of Westmorland, CASat, Oct 20, 10:52 AM PDT · 17149 days ago · 11 km deep · 70 km away
14. 2.38km ENE of Imperial, CASat, Oct 20, 9:57 AM PDT · 17149 days ago · 15 km deep · 53 km away
15. 2.45km E of Westmorland, CASat, Oct 20, 8:33 AM PDT · 17149 days ago · 12 km deep · 71 km away
16. 1.83km ENE of Westmorland, CASat, Oct 20, 8:15 AM PDT · 17149 days ago · 11 km deep · 73 km away
17. 2.47km ENE of Imperial, CASat, Oct 20, 7:56 AM PDT · 17149 days ago · 6 km deep · 52 km away
18. 3.18km NE of Imperial, CASat, Oct 20, 7:52 AM PDT · 17149 days ago · 15 km deep · 54 km away
19. 2.47km WSW of Holtville, CASat, Oct 20, 7:43 AM PDT · 17149 days ago · 15 km deep · 42 km away
20. 1.79km NE of Mexicali, B.C., MXSat, Oct 20, 7:14 AM PDT · 17149 days ago · 6 km deep · 32 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3353079. Read Fri, Oct 2, 2026, 6:53 AM UTC.