M2.1 earthquake 5km ESE of Delta, B.C., MX

Magnitude

2.1 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Apr 21, 1979, 11:39 PM PST

UTC

1979-04-22 07:39:08 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

32.336° N, 115.149° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.4 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.51

Depth from

Operator assigned

Station coverage gap

226°, poorly surrounded by stations

Stations used

14

• Ciudad Guadalupe Victoria, MexicoPopulation 17,119. Forecast7 kmNW
• San Luis Río Colorado, MexicoPopulation 176,685. Forecast38 kmWSW
• Mexicali, MexicoPopulation 1,032,686. Forecast43 kmSE

After

1. 1.96km NW of Guadalupe Victoria, B.C., MXSun, Apr 22, 12:12 AM PST · 17329 days ago · 10 km deep · 2 km away
2. 2.961km E of Maneadero, B.C., MXMon, Apr 23, 5:31 AM PST · 17328 days ago · 6 km deep · 96 km away
3. 2.08km WSW of Holtville, CAMon, Apr 23, 9:47 AM PST · 17328 days ago · 10 km deep · 57 km away
4. 2.43km SW of Guadalupe Victoria, B.C., MXTue, Apr 24, 12:43 AM PST · 17327 days ago · 6 km deep · 8 km away
5. 1.86km N of Delta, B.C., MXTue, Apr 24, 11:22 PM PST · 17326 days ago · 10 km deep · 9 km away
6. 2.05km WNW of Guadalupe Victoria, B.C., MXWed, Apr 25, 3:51 AM PST · 17326 days ago · 10 km deep · 3 km away
7. 1.622km WSW of Westmorland, CAWed, Apr 25, 9:46 PM PST · 17325 days ago · 8 km deep · 93 km away
8. 2.06km E of Westmorland, CAThu, Apr 26, 4:10 PM PST · 17325 days ago · 10 km deep · 88 km away
9. 2.31km WNW of Brawley, CAFri, Apr 27, 5:35 PM PST · 17324 days ago · 10 km deep · 81 km away
10. 2.811km E of Puebla, B.C., MXFri, Apr 27, 8:44 PM PST · 17323 days ago · 10 km deep · 25 km away
11. 1.710km E of Puebla, B.C., MXFri, Apr 27, 8:45 PM PST · 17323 days ago · 10 km deep · 26 km away
12. 2.05km WNW of Brawley, CASun, Apr 29, 8:34 AM PDT · 17322 days ago · 10 km deep · 84 km away
13. 1.520km WNW of Progreso, B.C., MXTue, May 1, 1:32 AM PDT · 17320 days ago · 0 km deep · 68 km away
14. 2.24km SSW of Brawley, CAWed, May 2, 7:08 AM PDT · 17319 days ago · 10 km deep · 77 km away
15. 3.04km SSW of Brawley, CAWed, May 2, 3:22 PM PDT · 17319 days ago · 10 km deep · 77 km away
16. 2.52km SSW of Brawley, CAWed, May 2, 3:29 PM PDT · 17319 days ago · 10 km deep · 78 km away
17. 2.63km SSW of Brawley, CAWed, May 2, 3:32 PM PDT · 17319 days ago · 10 km deep · 77 km away
18. 2.13km SSW of Brawley, CAWed, May 2, 4:50 PM PDT · 17319 days ago · 10 km deep · 78 km away
19. 2.22km SSW of Brawley, CAWed, May 2, 4:53 PM PDT · 17319 days ago · 10 km deep · 78 km away
20. 2.13km SSW of Brawley, CAWed, May 2, 5:14 PM PDT · 17319 days ago · 10 km deep · 78 km away
21. 1.53km S of Brawley, CAWed, May 2, 10:53 PM PDT · 17318 days ago · 10 km deep · 77 km away
22. 2.03km NE of Westmorland, CAFri, May 4, 2:19 AM PDT · 17317 days ago · 10 km deep · 91 km away
23. 1.932km WSW of Alberto Oviedo Mota, B.C., MXFri, May 4, 9:10 PM PDT · 17316 days ago · 6 km deep · 39 km away
24. 2.766km SW of Alberto Oviedo Mota, B.C., MXSat, May 5, 4:50 PM PDT · 17316 days ago · 10 km deep · 76 km away
25. 1.89km ENE of Calexico, CASun, May 6, 7:12 AM PDT · 17315 days ago · 10 km deep · 50 km away
26. 2.58km NE of Mexicali, B.C., MXSun, May 6, 7:13 AM PDT · 17315 days ago · 10 km deep · 48 km away
27. 2.59km NE of Calexico, CASun, May 6, 7:13 AM PDT · 17315 days ago · 10 km deep · 50 km away
28. 1.59km NE of Calexico, CASun, May 6, 7:13 AM PDT · 17315 days ago · 10 km deep · 52 km away
29. 1.910km SSW of Holtville, CASun, May 6, 7:19 AM PDT · 17315 days ago · 10 km deep · 50 km away
30. 2.39km ENE of Calexico, CASun, May 6, 7:20 AM PDT · 17315 days ago · 10 km deep · 50 km away
31. 1.78km ENE of Mexicali, B.C., MXSun, May 6, 7:41 AM PDT · 17315 days ago · 10 km deep · 46 km away
32. 1.68km NE of Mexicali, B.C., MXSun, May 6, 7:47 AM PDT · 17315 days ago · 10 km deep · 49 km away
33. 2.39km ENE of Calexico, CASun, May 6, 7:52 AM PDT · 17315 days ago · 10 km deep · 50 km away
34. 2.09km NNE of Mexicali, B.C., MXSun, May 6, 9:18 AM PDT · 17315 days ago · 10 km deep · 49 km away
35. 3.09km NE of Mexicali, B.C., MXSun, May 6, 9:18 AM PDT · 17315 days ago · 10 km deep · 49 km away
36. 2.410km NE of Mexicali, B.C., MXSun, May 6, 9:23 AM PDT · 17315 days ago · 10 km deep · 49 km away
37. 1.89km ENE of Calexico, CASun, May 6, 10:29 AM PDT · 17315 days ago · 10 km deep · 50 km away
38. 1.58km NE of Mexicali, B.C., MXSun, May 6, 11:22 AM PDT · 17315 days ago · 10 km deep · 47 km away
39. 2.36km WNW of Westmorland, CASun, May 6, 1:39 PM PDT · 17315 days ago · 10 km deep · 95 km away
40. 2.42km NW of Imperial, CATue, May 8, 2:15 AM PDT · 17313 days ago · 10 km deep · 71 km away
41. 2.141km E of Estacion Coahuila, B.C., MXTue, May 8, 11:40 AM GMT-7 · 17313 days ago · 6 km deep · 59 km away
42. 1.710km NNW of Delta, B.C., MXWed, May 9, 4:46 PM PDT · 17312 days ago · 6 km deep · 13 km away
43. 2.05km NW of Delta, B.C., MXFri, May 11, 12:26 AM PDT · 17310 days ago · 6 km deep · 9 km away
44. 1.619km WNW of Imperial, CAFri, May 11, 3:23 AM PDT · 17310 days ago · 6 km deep · 85 km away
45. 2.67km ENE of Puebla, B.C., MXFri, May 11, 12:24 PM PDT · 17310 days ago · 10 km deep · 31 km away
46. 2.749km ESE of Estacion Coahuila, B.C., MXFri, May 11, 1:47 PM GMT-7 · 17310 days ago · 6 km deep · 68 km away
47. 2.167km WSW of Alberto Oviedo Mota, B.C., MXFri, May 11, 3:06 PM PDT · 17310 days ago · 6 km deep · 74 km away
48. 2.030km SSE of San Luis Rio Colorado, Son., MXFri, May 11, 5:13 PM GMT-7 · 17310 days ago · 6 km deep · 52 km away
49. 1.76km E of Westmorland, CAMon, May 14, 2:59 PM PDT · 17307 days ago · 11 km deep · 87 km away
50. 2.253km ENE of Maneadero, B.C., MXMon, May 14, 5:57 PM PDT · 17307 days ago · 6 km deep · 97 km away
51. 1.97km E of Westmorland, CAMon, May 14, 9:55 PM PDT · 17306 days ago · 10 km deep · 87 km away
52. 1.56km E of Westmorland, CAMon, May 14, 10:17 PM PDT · 17306 days ago · 9 km deep · 88 km away
53. 1.57km N of Brawley, CAMon, May 14, 10:31 PM PDT · 17306 days ago · 10 km deep · 87 km away
54. 1.96km E of Westmorland, CAMon, May 14, 10:46 PM PDT · 17306 days ago · 10 km deep · 87 km away
55. 2.06km ENE of Westmorland, CAMon, May 14, 10:50 PM PDT · 17306 days ago · 10 km deep · 88 km away
56. 1.57km E of Westmorland, CATue, May 15, 2:28 AM PDT · 17306 days ago · 10 km deep · 87 km away
57. 1.61km NW of Westmorland, CATue, May 15, 2:59 AM PDT · 17306 days ago · 10 km deep · 90 km away
58. 2.420km WNW of Progreso, B.C., MXTue, May 15, 6:10 AM PDT · 17306 days ago · 4 km deep · 68 km away
59. 1.953km SE of Campo, CATue, May 15, 10:20 AM PDT · 17306 days ago · 6 km deep · 94 km away
60. 1.85km NW of Brawley, CATue, May 15, 9:06 PM PDT · 17305 days ago · 10 km deep · 85 km away

The first 60 of at least 200.

Before

1. 1.56km SW of Holtville, CASat, Apr 21, 5:03 PM PST · 17330 days ago · 12 km deep · 54 km away
2. 1.65km WNW of Brawley, CAFri, Apr 20, 12:27 AM PST · 17331 days ago · 10 km deep · 84 km away
3. 1.54km WSW of Brawley, CAFri, Apr 20, 12:26 AM PST · 17331 days ago · 7 km deep · 81 km away
4. 1.78km E of Puebla, B.C., MXThu, Apr 19, 5:34 PM PST · 17332 days ago · 10 km deep · 29 km away
5. 2.65km NW of Brawley, CAThu, Apr 19, 1:00 PM PST · 17332 days ago · 10 km deep · 84 km away
6. 1.67km SW of Holtville, CAWed, Apr 18, 6:59 AM PST · 17333 days ago · 10 km deep · 56 km away
7. 2.17km SW of Holtville, CAWed, Apr 18, 6:36 AM PST · 17333 days ago · 10 km deep · 56 km away
8. 2.77km SW of Holtville, CAWed, Apr 18, 5:26 AM PST · 17333 days ago · 10 km deep · 56 km away
9. 2.58km SW of Holtville, CAWed, Apr 18, 4:59 AM PST · 17333 days ago · 10 km deep · 56 km away
10. 1.67km WSW of Holtville, CAWed, Apr 18, 4:46 AM PST · 17333 days ago · 10 km deep · 58 km away
11. 2.38km SW of Holtville, CAWed, Apr 18, 2:50 AM PST · 17333 days ago · 10 km deep · 55 km away
12. 2.27km SW of Holtville, CATue, Apr 17, 11:17 PM PST · 17333 days ago · 10 km deep · 56 km away
13. 1.68km WNW of Holtville, CATue, Apr 17, 6:32 PM PST · 17334 days ago · 4 km deep · 64 km away
14. 1.811km E of Puebla, B.C., MXMon, Apr 16, 5:10 AM PST · 17335 days ago · 10 km deep · 26 km away
15. 1.55km ENE of Westmorland, CAMon, Apr 16, 3:11 AM PST · 17335 days ago · 2 km deep · 88 km away
16. 1.912km E of Puebla, B.C., MXSun, Apr 15, 11:44 PM PST · 17335 days ago · 10 km deep · 28 km away
17. 2.413km E of Puebla, B.C., MXSun, Apr 15, 11:04 PM PST · 17335 days ago · 6 km deep · 27 km away
18. 1.814km E of Puebla, B.C., MXSun, Apr 15, 11:03 PM PST · 17335 days ago · 6 km deep · 27 km away
19. 1.810km E of Puebla, B.C., MXSun, Apr 15, 10:17 PM PST · 17335 days ago · 6 km deep · 26 km away
20. 2.413km ESE of Puebla, B.C., MXSun, Apr 15, 10:14 PM PST · 17335 days ago · 10 km deep · 23 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3348567. Read Thu, Oct 1, 2026, 2:50 PM UTC.