M1.9 earthquake 9km NNE of Delta, B.C., MX

Magnitude

1.9 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Wed, Oct 17, 1979, 10:47 AM PDT

UTC

1979-10-17 17:47:52 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

32.423° N, 115.148° W

Region

Mexico

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.1 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.03

Depth from

Operator assigned

Station coverage gap

263°, poorly surrounded by stations

Stations used

7

• Ciudad Guadalupe Victoria, MexicoPopulation 17,119. Forecast15 kmNNW
• San Luis Río Colorado, MexicoPopulation 176,685. Forecast36 kmW
• Mexicali, MexicoPopulation 1,032,686. Forecast37 kmSE

After

1. 1.612km NNW of Delta, B.C., MXWed, Oct 17, 11:02 AM PDT · 17154 days ago · 6 km deep · 8 km away
2. 2.45km W of Brawley, CAWed, Oct 17, 11:05 AM PDT · 17154 days ago · 13 km deep · 75 km away
3. 1.95km ESE of Brawley, CAWed, Oct 17, 11:11 AM PDT · 17154 days ago · 15 km deep · 67 km away
4. 1.77km SSW of Holtville, CAWed, Oct 17, 11:25 AM PDT · 17154 days ago · 6 km deep · 44 km away
5. 2.38km SSW of Holtville, CAWed, Oct 17, 11:45 AM PDT · 17154 days ago · 14 km deep · 44 km away
6. 2.87km SSW of Holtville, CAWed, Oct 17, 11:45 AM PDT · 17154 days ago · 15 km deep · 44 km away
7. 1.87km SSW of Holtville, CAWed, Oct 17, 11:49 AM PDT · 17154 days ago · 15 km deep · 45 km away
8. 1.911km N of Delta, B.C., MXWed, Oct 17, 11:55 AM PDT · 17154 days ago · 15 km deep · 5 km away
9. 2.77km SSW of Holtville, CAWed, Oct 17, 12:01 PM PDT · 17154 days ago · 15 km deep · 44 km away
10. 3.27km NNE of Brawley, CAWed, Oct 17, 12:03 PM PDT · 17154 days ago · 12 km deep · 75 km away
11. 1.59km SSW of Holtville, CAWed, Oct 17, 12:08 PM PDT · 17154 days ago · 3 km deep · 42 km away
12. 2.57km SSW of Holtville, CAWed, Oct 17, 12:09 PM PDT · 17154 days ago · 15 km deep · 44 km away
13. 4.18km NNW of Imperial, CAWed, Oct 17, 12:14 PM PDT · 17154 days ago · 15 km deep · 69 km away
14. 2.66km N of Imperial, CAWed, Oct 17, 12:21 PM PDT · 17154 days ago · 15 km deep · 67 km away
15. 2.06km N of Imperial, CAWed, Oct 17, 12:31 PM PDT · 17154 days ago · 15 km deep · 67 km away
16. 1.57km N of Imperial, CAWed, Oct 17, 12:38 PM PDT · 17154 days ago · 6 km deep · 67 km away
17. 2.17km N of Imperial, CAWed, Oct 17, 12:39 PM PDT · 17154 days ago · 15 km deep · 68 km away
18. 1.67km N of Imperial, CAWed, Oct 17, 12:42 PM PDT · 17154 days ago · 6 km deep · 67 km away
19. 1.54km ESE of Brawley, CAWed, Oct 17, 12:48 PM PDT · 17154 days ago · 6 km deep · 69 km away
20. 2.66km N of Imperial, CAWed, Oct 17, 12:56 PM PDT · 17154 days ago · 15 km deep · 67 km away
21. 2.47km N of Imperial, CAWed, Oct 17, 12:59 PM PDT · 17154 days ago · 14 km deep · 67 km away
22. 2.87km NE of Imperial, CAWed, Oct 17, 1:05 PM PDT · 17154 days ago · 15 km deep · 63 km away
23. 1.67km NE of Imperial, CAWed, Oct 17, 1:15 PM PDT · 17154 days ago · 6 km deep · 64 km away
24. 2.39km N of Delta, B.C., MXWed, Oct 17, 1:19 PM PDT · 17154 days ago · 15 km deep · 3 km away
25. 2.410km N of Delta, B.C., MXWed, Oct 17, 1:27 PM PDT · 17154 days ago · 13 km deep · 4 km away
26. 1.713km NNE of Delta, B.C., MXWed, Oct 17, 1:29 PM PDT · 17154 days ago · 6 km deep · 5 km away
27. 2.46km N of Imperial, CAWed, Oct 17, 1:46 PM PDT · 17154 days ago · 15 km deep · 67 km away
28. 1.512km N of Delta, B.C., MXWed, Oct 17, 1:49 PM PDT · 17154 days ago · 6 km deep · 5 km away
29. 2.313km N of Delta, B.C., MXWed, Oct 17, 1:51 PM PDT · 17154 days ago · 6 km deep · 6 km away
30. 2.16km ENE of Imperial, CAWed, Oct 17, 1:57 PM PDT · 17154 days ago · 15 km deep · 60 km away
31. 2.46km N of Imperial, CAWed, Oct 17, 2:02 PM PDT · 17154 days ago · 13 km deep · 67 km away
32. 2.56km N of Imperial, CAWed, Oct 17, 2:02 PM PDT · 17154 days ago · 13 km deep · 67 km away
33. 2.210km WNW of Calipatria, CAWed, Oct 17, 2:02 PM PDT · 17154 days ago · 4 km deep · 92 km away
34. 2.56km N of Imperial, CAWed, Oct 17, 2:10 PM PDT · 17154 days ago · 14 km deep · 66 km away
35. 1.76km N of Imperial, CAWed, Oct 17, 2:24 PM PDT · 17154 days ago · 6 km deep · 66 km away
36. 2.66km N of Imperial, CAWed, Oct 17, 3:09 PM PDT · 17154 days ago · 15 km deep · 66 km away
37. 2.55km N of Imperial, CAWed, Oct 17, 3:10 PM PDT · 17154 days ago · 13 km deep · 65 km away
38. 2.27km NNE of Brawley, CAWed, Oct 17, 3:15 PM PDT · 17154 days ago · 5 km deep · 75 km away
39. 2.16km N of Imperial, CAWed, Oct 17, 3:16 PM PDT · 17154 days ago · 14 km deep · 66 km away
40. 2.78km SSW of Holtville, CAWed, Oct 17, 3:19 PM PDT · 17154 days ago · 15 km deep · 44 km away
41. 2.77km N of Imperial, CAWed, Oct 17, 3:31 PM PDT · 17154 days ago · 15 km deep · 67 km away
42. 2.08km SSW of Holtville, CAWed, Oct 17, 3:44 PM PDT · 17154 days ago · 15 km deep · 43 km away
43. 2.89km SSW of Holtville, CAWed, Oct 17, 3:44 PM PDT · 17154 days ago · 15 km deep · 42 km away
44. 4.68km S of Calipatria, CAWed, Oct 17, 3:45 PM PDT · 17154 days ago · 10 km deep · 78 km away
45. 3.58km SSE of Calipatria, CAWed, Oct 17, 3:47 PM PDT · 17154 days ago · 4 km deep · 77 km away
46. 3.16km NNE of Brawley, CAWed, Oct 17, 3:50 PM PDT · 17154 days ago · 5 km deep · 76 km away
47. 3.18km NNE of Brawley, CAWed, Oct 17, 3:54 PM PDT · 17154 days ago · 5 km deep · 76 km away
48. 1.53km ENE of Brawley, CAWed, Oct 17, 3:57 PM PDT · 17154 days ago · 6 km deep · 71 km away
49. 1.83km ENE of Imperial, CAWed, Oct 17, 3:57 PM PDT · 17154 days ago · 6 km deep · 61 km away
50. 2.18km NNE of Brawley, CAWed, Oct 17, 4:02 PM PDT · 17154 days ago · 5 km deep · 76 km away
51. 2.37km SW of Holtville, CAWed, Oct 17, 4:07 PM PDT · 17154 days ago · 15 km deep · 46 km away
52. 1.88km NNE of Brawley, CAWed, Oct 17, 4:07 PM PDT · 17154 days ago · 5 km deep · 75 km away
53. 1.87km NNE of Brawley, CAWed, Oct 17, 4:15 PM PDT · 17154 days ago · 5 km deep · 75 km away
54. 2.16km NNE of Brawley, CAWed, Oct 17, 4:19 PM PDT · 17154 days ago · 6 km deep · 75 km away
55. 2.06km NNE of Brawley, CAWed, Oct 17, 4:24 PM PDT · 17154 days ago · 5 km deep · 76 km away
56. 3.17km NNE of Brawley, CAWed, Oct 17, 4:27 PM PDT · 17154 days ago · 14 km deep · 76 km away
57. 2.47km N of Imperial, CAWed, Oct 17, 4:29 PM PDT · 17154 days ago · 15 km deep · 67 km away
58. 2.39km NNE of Brawley, CAWed, Oct 17, 4:30 PM PDT · 17154 days ago · 10 km deep · 76 km away
59. 2.67km NNE of Brawley, CAWed, Oct 17, 4:30 PM PDT · 17154 days ago · 5 km deep · 75 km away
60. 3.29km NNW of Delta, B.C., MXWed, Oct 17, 4:35 PM PDT · 17154 days ago · 15 km deep · 6 km away

The first 60 of at least 200.

Before

1. 1.910km N of Delta, B.C., MXWed, Oct 17, 10:46 AM PDT · 17154 days ago · 8 km deep · 4 km away
2. 2.17km NE of Imperial, CAWed, Oct 17, 10:43 AM PDT · 17154 days ago · 15 km deep · 62 km away
3. 2.36km NE of Imperial, CAWed, Oct 17, 10:16 AM PDT · 17154 days ago · 15 km deep · 62 km away
4. 2.112km N of Delta, B.C., MXWed, Oct 17, 10:07 AM PDT · 17154 days ago · 0 km deep · 5 km away
5. 2.33km S of Brawley, CAWed, Oct 17, 9:41 AM PDT · 17154 days ago · 14 km deep · 69 km away
6. 2.64km S of Brawley, CAWed, Oct 17, 9:32 AM PDT · 17154 days ago · 15 km deep · 68 km away
7. 2.46km N of Imperial, CAWed, Oct 17, 9:27 AM PDT · 17154 days ago · 13 km deep · 67 km away
8. 2.410km N of Delta, B.C., MXWed, Oct 17, 9:23 AM PDT · 17154 days ago · 15 km deep · 4 km away
9. 1.75km E of Brawley, CAWed, Oct 17, 9:19 AM PDT · 17154 days ago · 4 km deep · 70 km away
10. 3.14km SSW of Brawley, CAWed, Oct 17, 9:17 AM PDT · 17154 days ago · 15 km deep · 69 km away
11. 2.99km N of Delta, B.C., MXWed, Oct 17, 9:09 AM PDT · 17154 days ago · 15 km deep · 5 km away
12. 3.410km NNW of Delta, B.C., MXWed, Oct 17, 9:00 AM PDT · 17154 days ago · 15 km deep · 7 km away
13. 1.618km E of Brawley, CAWed, Oct 17, 8:38 AM PDT · 17154 days ago · 5 km deep · 66 km away
14. 2.89km N of Delta, B.C., MXWed, Oct 17, 8:27 AM PDT · 17154 days ago · 15 km deep · 3 km away
15. 2.06km NE of Imperial, CAWed, Oct 17, 8:16 AM PDT · 17154 days ago · 6 km deep · 63 km away
16. 1.510km E of Puebla, B.C., MXWed, Oct 17, 8:12 AM PDT · 17154 days ago · 6 km deep · 18 km away
17. 1.911km E of Brawley, CAWed, Oct 17, 8:06 AM PDT · 17154 days ago · 6 km deep · 65 km away
18. 2.010km N of Delta, B.C., MXWed, Oct 17, 8:04 AM PDT · 17154 days ago · 6 km deep · 4 km away
19. 2.26km SSE of Brawley, CAWed, Oct 17, 8:03 AM PDT · 17154 days ago · 14 km deep · 66 km away
20. 1.610km W of Calipatria, CAWed, Oct 17, 7:58 AM PDT · 17154 days ago · 7 km deep · 92 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3352673. Read Sun, Oct 4, 2026, 4:01 PM UTC.