M1.8 earthquake 6km NE of Westmorland, CA

Magnitude

1.8 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Jul 6, 1978, 3:40 AM PDT

UTC

1978-07-06 10:40:38 UTC

Depth

10.2 km (6.3 mi), shallow

Epicenter

33.078° N, 115.582° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.3 km in depth

Magnitude uncertainty

±0.04

Depth from

From location

Station coverage gap

78°

Stations used

20

• Westmorland, CaliforniaPopulation 2,267. Forecast6 kmNE
• Brawley, CaliforniaPopulation 25,897. Forecast12 kmNNW
• Mexicali, MexicoPopulation 1,032,686. Forecast51 kmNNW

After

1. 1.55km SSW of Holtville, CAThu, Jul 6, 5:38 AM PDT · 17621 days ago · 6 km deep · 38 km away
2. 1.718km W of Westmorland, CAThu, Jul 6, 9:57 PM PDT · 17620 days ago · 6 km deep · 22 km away
3. 1.72km WNW of Julian, CAFri, Jul 7, 7:10 AM PDT · 17620 days ago · 14 km deep · 97 km away
4. 2.122km ESE of Anza, CAFri, Jul 7, 3:23 PM PDT · 17620 days ago · 14 km deep · 92 km away
5. 1.921km SW of La Quinta, CAFri, Jul 7, 11:00 PM PDT · 17619 days ago · 9 km deep · 93 km away
6. 1.818km NW of Westmorland, CAFri, Jul 7, 11:42 PM PDT · 17619 days ago · 8 km deep · 18 km away
7. 1.77km WSW of Holtville, CASat, Jul 8, 2:09 AM PDT · 17619 days ago · 10 km deep · 35 km away
8. 1.917km ESE of Anza, CASat, Jul 8, 7:46 AM PDT · 17619 days ago · 11 km deep · 98 km away
9. 1.916km SE of Anza, CASat, Jul 8, 3:32 PM PDT · 17619 days ago · 6 km deep · 99 km away
10. 2.816km NNE of Borrego Springs, CAMon, Jul 10, 2:02 AM PDT · 17617 days ago · 14 km deep · 75 km away
11. 2.43km N of Guadalupe Victoria, B.C., MXMon, Jul 10, 10:57 AM PDT · 17617 days ago · 6 km deep · 95 km away
12. 1.91km SE of Guadalupe Victoria, B.C., MXMon, Jul 10, 11:09 AM PDT · 17617 days ago · 6 km deep · 100 km away
13. 2.316km WSW of Westmorland, CAWed, Jul 12, 12:13 AM PDT · 17615 days ago · 9 km deep · 21 km away
14. 2.211km SE of Bombay Beach, CAWed, Jul 12, 1:36 AM PDT · 17615 days ago · 4 km deep · 23 km away
15. 2.614km W of Niland, CAWed, Jul 12, 5:16 AM PDT · 17615 days ago · 5 km deep · 19 km away
16. 2.914km W of Niland, CAWed, Jul 12, 5:17 AM PDT · 17615 days ago · 3 km deep · 19 km away
17. 1.914km W of Niland, CAWed, Jul 12, 5:24 AM PDT · 17615 days ago · 3 km deep · 19 km away
18. 1.65km W of Imperial, CAWed, Jul 12, 11:57 AM PDT · 17615 days ago · 10 km deep · 26 km away
19. 2.06km WSW of Imperial, CAWed, Jul 12, 12:08 PM PDT · 17615 days ago · 10 km deep · 29 km away
20. 1.912km W of Niland, CAWed, Jul 12, 4:39 PM PDT · 17615 days ago · 5 km deep · 18 km away
21. 1.913km W of Niland, CAFri, Jul 14, 9:10 AM PDT · 17613 days ago · 0 km deep · 19 km away
22. 2.16km WSW of Holtville, CAFri, Jul 14, 1:55 PM PDT · 17613 days ago · 10 km deep · 34 km away
23. 1.912km WNW of Niland, CAFri, Jul 14, 2:22 PM PDT · 17613 days ago · 4 km deep · 21 km away
24. 1.615km SE of Anza, CASat, Jul 15, 4:00 AM PDT · 17612 days ago · 6 km deep · 100 km away
25. 2.331km SE of Campo, CASun, Jul 16, 12:42 AM PDT · 17611 days ago · 14 km deep · 96 km away
26. 1.77km E of El Centro, CASun, Jul 16, 8:11 PM PDT · 17611 days ago · 10 km deep · 34 km away
27. 1.86km NNE of Guadalupe Victoria, B.C., MXMon, Jul 17, 11:42 AM PDT · 17610 days ago · 10 km deep · 96 km away
28. 1.926km ENE of Pine Valley, CAMon, Jul 17, 2:33 PM PDT · 17610 days ago · 6 km deep · 67 km away
29. 2.712km W of Alberto Oviedo Mota, B.C., MXMon, Jul 17, 3:39 PM PDT · 17610 days ago · 6 km deep · 98 km away
30. 1.512km NE of Borrego Springs, CAWed, Jul 19, 1:20 AM PDT · 17608 days ago · 10 km deep · 72 km away
31. 1.611km N of Delta, B.C., MXWed, Jul 19, 10:26 AM PDT · 17608 days ago · 24 km deep · 79 km away
32. 2.724km WSW of Westmorland, CAWed, Jul 19, 8:19 PM PDT · 17608 days ago · 10 km deep · 29 km away
33. 1.710km NNW of Westmorland, CAThu, Jul 20, 7:10 PM PDT · 17607 days ago · 8 km deep · 8 km away
34. 2.237km S of Progreso, B.C., MXFri, Jul 21, 11:19 PM PDT · 17605 days ago · 6 km deep · 92 km away
35. 1.630km W of Desert Center, CASat, Jul 22, 4:01 AM PDT · 17605 days ago · 9 km deep · 78 km away
36. 1.52km NW of Borrego Springs, CASat, Jul 22, 6:41 AM PDT · 17605 days ago · 5 km deep · 78 km away
37. 1.721km ESE of Anza, CASat, Jul 22, 12:18 PM PDT · 17605 days ago · 14 km deep · 93 km away
38. 1.717km E of Julian, CASat, Jul 22, 9:00 PM PDT · 17605 days ago · 15 km deep · 78 km away
39. 1.86km E of Imperial, CASun, Jul 23, 1:39 AM PDT · 17604 days ago · 10 km deep · 27 km away
40. 2.024km W of Westmorland, CASun, Jul 23, 3:07 AM PDT · 17604 days ago · 3 km deep · 28 km away
41. 2.25km ESE of Delta, B.C., MXSun, Jul 23, 12:40 PM PDT · 17604 days ago · 10 km deep · 92 km away
42. 1.610km WNW of Calipatria, CASun, Jul 23, 4:12 PM PDT · 17604 days ago · 2 km deep · 11 km away
43. 1.811km WNW of Calipatria, CASun, Jul 23, 4:13 PM PDT · 17604 days ago · 3 km deep · 11 km away
44. 1.911km SW of Niland, CASun, Jul 23, 5:26 PM PDT · 17604 days ago · 4 km deep · 12 km away
45. 1.74km SW of Ocotillo, CAMon, Jul 24, 8:26 AM PDT · 17603 days ago · 7 km deep · 59 km away
46. 1.97km NNW of Brawley, CAMon, Jul 24, 8:54 PM PDT · 17603 days ago · 9 km deep · 5 km away
47. 1.822km ESE of Anza, CATue, Jul 25, 10:41 AM PDT · 17602 days ago · 15 km deep · 93 km away
48. 2.714km WNW of Alberto Oviedo Mota, B.C., MXTue, Jul 25, 7:27 PM PDT · 17602 days ago · 6 km deep · 95 km away
49. 1.621km ESE of Anza, CAWed, Jul 26, 4:01 AM PDT · 17601 days ago · 13 km deep · 94 km away
50. 2.78km N of Borrego Springs, CAWed, Jul 26, 2:32 PM PDT · 17601 days ago · 14 km deep · 78 km away
51. 1.65km WSW of Brawley, CAWed, Jul 26, 11:24 PM PDT · 17600 days ago · 7 km deep · 13 km away
52. 2.34km W of Brawley, CAWed, Jul 26, 11:26 PM PDT · 17600 days ago · 10 km deep · 12 km away
53. 1.69km E of Puebla, B.C., MXThu, Jul 27, 4:28 AM PDT · 17600 days ago · 16 km deep · 64 km away
54. 2.38km SSW of Salton City, CAThu, Jul 27, 3:26 PM PDT · 17600 days ago · 8 km deep · 41 km away
55. 2.58km SSW of Salton City, CAThu, Jul 27, 3:26 PM PDT · 17600 days ago · 8 km deep · 41 km away
56. 1.88km SSW of Salton City, CAThu, Jul 27, 3:33 PM PDT · 17600 days ago · 6 km deep · 41 km away
57. 1.86km NW of Julian, CAThu, Jul 27, 9:36 PM PDT · 17599 days ago · 8 km deep · 100 km away
58. 1.93km N of Brawley, CAFri, Jul 28, 7:17 AM PDT · 17599 days ago · 9 km deep · 10 km away
59. 2.06km NW of Holtville, CAFri, Jul 28, 10:03 AM PDT · 17599 days ago · 4 km deep · 29 km away
60. 2.27km NNW of Holtville, CAFri, Jul 28, 11:07 AM PDT · 17599 days ago · 4 km deep · 28 km away

The first 60 of 171.

Before

1. 1.78km WSW of Holtville, CAThu, Jul 6, 12:21 AM PDT · 17621 days ago · 10 km deep · 34 km away
2. 1.712km SW of Westmorland, CAWed, Jul 5, 2:37 PM PDT · 17622 days ago · 10 km deep · 17 km away
3. 1.713km S of Salton City, CATue, Jul 4, 2:13 PM PDT · 17623 days ago · 6 km deep · 35 km away
4. 2.14km W of Ocotillo, CAMon, Jul 3, 6:13 PM PDT · 17624 days ago · 3 km deep · 57 km away
5. 1.810km NE of Indio, CAMon, Jul 3, 5:28 PM PDT · 17624 days ago · 6 km deep · 92 km away
6. 1.812km W of Alberto Oviedo Mota, B.C., MXMon, Jul 3, 4:09 PM PDT · 17624 days ago · 6 km deep · 96 km away
7. 1.615km NE of Borrego Springs, CAMon, Jul 3, 12:00 PM PDT · 17624 days ago · 10 km deep · 68 km away
8. 1.615km SSE of Ocotillo Wells, CASun, Jul 2, 9:53 PM PDT · 17624 days ago · 17 km deep · 44 km away
9. 1.722km W of Westmorland, CASun, Jul 2, 7:28 PM PDT · 17625 days ago · 5 km deep · 26 km away
10. 1.813km NW of Progreso, B.C., MXSun, Jul 2, 6:56 PM PDT · 17625 days ago · 12 km deep · 47 km away
11. 1.812km NW of Progreso, B.C., MXSun, Jul 2, 6:17 PM PDT · 17625 days ago · 12 km deep · 47 km away
12. 2.124km ENE of Pine Valley, CASun, Jul 2, 11:20 AM PDT · 17625 days ago · 1 km deep · 70 km away
13. 2.324km ENE of Pine Valley, CASun, Jul 2, 8:27 AM PDT · 17625 days ago · 4 km deep · 70 km away
14. 1.524km SSE of Ocotillo, CASat, Jul 1, 7:04 PM PDT · 17626 days ago · 2 km deep · 67 km away
15. 1.96km NNW of Brawley, CASat, Jul 1, 11:13 AM PDT · 17626 days ago · 8 km deep · 6 km away
16. 1.724km ENE of Thermal, CASat, Jul 1, 9:22 AM PDT · 17626 days ago · 8 km deep · 81 km away
17. 1.621km ESE of Julian, CASat, Jul 1, 12:00 AM PDT · 17626 days ago · 15 km deep · 74 km away
18. 1.58km W of Holtville, CAFri, Jun 30, 11:16 PM PDT · 17626 days ago · 10 km deep · 31 km away
19. 2.26km NW of Holtville, CAFri, Jun 30, 8:44 PM PDT · 17627 days ago · 5 km deep · 29 km away
20. 2.714km SW of Delta, B.C., MXFri, Jun 30, 7:49 PM PDT · 17627 days ago · 6 km deep · 92 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3340421. Read Sat, Oct 3, 2026, 3:51 PM UTC.