M1.6 earthquake 21km ESE of Anza, CA

Magnitude

1.6 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Wed, Jul 26, 1978, 4:01 AM PDT

UTC

1978-07-26 11:01:22 UTC

Depth

13.4 km (8.3 mi), shallow

Epicenter

33.480° N, 116.469° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.7 km in depth

Depth from

From location

Station coverage gap

83°

Stations used

17

• Anza, CaliforniaPopulation 3,014. Forecast21 kmESE
• La Quinta, CaliforniaPopulation 40,476. Forecast25 kmSW
• Temecula, CaliforniaPopulation 110,003. Forecast63 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast107 kmNE

After

1. 1.59km ENE of Big Bear City, CAWed, Jul 26, 1:06 PM PDT · 17600 days ago · 11 km deep · 95 km away
2. 2.78km N of Borrego Springs, CAWed, Jul 26, 2:32 PM PDT · 17600 days ago · 14 km deep · 19 km away
3. 2.110km SSW of Morongo Valley, CAWed, Jul 26, 4:50 PM PDT · 17600 days ago · 17 km deep · 56 km away
4. 2.05km SSE of Banning, CAWed, Jul 26, 9:09 PM PDT · 17599 days ago · 15 km deep · 58 km away
5. 1.58km NNE of Banning, CAWed, Jul 26, 11:24 PM PDT · 17599 days ago · 10 km deep · 66 km away
6. 2.38km SSW of Salton City, CAThu, Jul 27, 3:26 PM PDT · 17599 days ago · 8 km deep · 52 km away
7. 2.58km SSW of Salton City, CAThu, Jul 27, 3:26 PM PDT · 17599 days ago · 8 km deep · 53 km away
8. 1.88km SSW of Salton City, CAThu, Jul 27, 3:33 PM PDT · 17599 days ago · 6 km deep · 53 km away
9. 1.86km NW of Julian, CAThu, Jul 27, 9:36 PM PDT · 17598 days ago · 8 km deep · 44 km away
10. 1.714km S of Anza, CAFri, Jul 28, 1:06 PM PDT · 17598 days ago · 13 km deep · 22 km away
11. 1.58km WSW of Anza, CAFri, Jul 28, 10:32 PM PDT · 17597 days ago · 8 km deep · 26 km away
12. 1.514km S of Anza, CASat, Jul 29, 2:31 AM PDT · 17597 days ago · 15 km deep · 22 km away
13. 2.32km WNW of Borrego Springs, CASat, Jul 29, 11:18 AM PDT · 17597 days ago · 5 km deep · 25 km away
14. 1.62km NW of Borrego Springs, CASat, Jul 29, 5:08 PM PDT · 17597 days ago · 5 km deep · 24 km away
15. 1.511km N of Julian, CASat, Jul 29, 7:27 PM PDT · 17597 days ago · 14 km deep · 37 km away
16. 2.76km SSW of Idyllwild, CASun, Jul 30, 6:39 AM PDT · 17596 days ago · 17 km deep · 35 km away
17. 1.64km SSW of Idyllwild, CASun, Jul 30, 7:05 AM PDT · 17596 days ago · 18 km deep · 35 km away
18. 1.65km SSW of Idyllwild, CASun, Jul 30, 7:14 AM PDT · 17596 days ago · 19 km deep · 35 km away
19. 1.94km SSW of Idyllwild, CASun, Jul 30, 7:42 AM PDT · 17596 days ago · 17 km deep · 35 km away
20. 1.814km NE of Borrego Springs, CASun, Jul 30, 7:49 AM PDT · 17596 days ago · 11 km deep · 22 km away
21. 1.64km SW of Big Bear Lake, CASun, Jul 30, 8:41 AM PDT · 17596 days ago · 8 km deep · 92 km away
22. 1.611km SSE of Anza, CASun, Jul 30, 6:08 PM PDT · 17596 days ago · 6 km deep · 13 km away
23. 1.513km ESE of Anza, CASun, Jul 30, 10:57 PM PDT · 17595 days ago · 14 km deep · 7 km away
24. 1.76km NNW of Ocotillo Wells, CAMon, Jul 31, 4:05 AM PDT · 17595 days ago · 6 km deep · 44 km away
25. 2.23km WSW of Yucaipa, CAMon, Jul 31, 1:37 PM PDT · 17595 days ago · 12 km deep · 82 km away
26. 3.022km W of Westmorland, CATue, Aug 1, 11:31 PM PDT · 17593 days ago · 2 km deep · 77 km away
27. 1.55km SSE of Big Bear City, CAWed, Aug 2, 12:42 AM PDT · 17593 days ago · 10 km deep · 88 km away
28. 1.620km WSW of Westmorland, CAWed, Aug 2, 1:53 AM PDT · 17593 days ago · 3 km deep · 80 km away
29. 1.711km SW of Idyllwild, CAWed, Aug 2, 7:07 AM PDT · 17593 days ago · 13 km deep · 35 km away
30. 2.53km SSE of Redlands, CAWed, Aug 2, 12:19 PM PDT · 17593 days ago · 15 km deep · 89 km away
31. 2.112km N of Borrego Springs, CAWed, Aug 2, 4:32 PM PDT · 17593 days ago · 13 km deep · 15 km away
32. 1.56km W of Anza, CAWed, Aug 2, 6:16 PM PDT · 17593 days ago · 3 km deep · 26 km away
33. 3.210km SSE of Idyllwild, CAWed, Aug 2, 9:30 PM PDT · 17592 days ago · 21 km deep · 29 km away
34. 1.83km SW of Big Bear Lake, CAWed, Aug 2, 10:55 PM PDT · 17592 days ago · 8 km deep · 93 km away
35. 1.56km SW of Idyllwild, CAWed, Aug 2, 11:50 PM PDT · 17592 days ago · 17 km deep · 38 km away
36. 1.77km N of Idyllwild, CAThu, Aug 3, 10:00 AM PDT · 17592 days ago · 18 km deep · 43 km away
37. 1.713km W of Niland, CAThu, Aug 3, 5:23 PM PDT · 17592 days ago · 5 km deep · 80 km away
38. 1.912km W of Westmorland, CAThu, Aug 3, 7:37 PM PDT · 17592 days ago · 5 km deep · 84 km away
39. 1.821km ESE of Anza, CAFri, Aug 4, 2:58 AM PDT · 17591 days ago · 7 km deep · 1 km away
40. 1.518km W of Westmorland, CAFri, Aug 4, 3:56 PM PDT · 17591 days ago · 6 km deep · 77 km away
41. 1.78km NNE of Borrego Springs, CASat, Aug 5, 2:35 AM PDT · 17590 days ago · 12 km deep · 21 km away
42. 1.916km SE of Big Bear City, CASat, Aug 5, 4:15 PM PDT · 17590 days ago · 2 km deep · 78 km away
43. 1.77km NE of Beaumont, CASun, Aug 6, 7:42 AM PDT · 17589 days ago · 4 km deep · 69 km away
44. 1.513km SE of Warner Springs, CASun, Aug 6, 4:16 PM PDT · 17589 days ago · 11 km deep · 32 km away
45. 1.87km WSW of Calimesa, CASun, Aug 6, 4:57 PM PDT · 17589 days ago · 19 km deep · 81 km away
46. 2.116km SE of Big Bear City, CASun, Aug 6, 8:02 PM PDT · 17589 days ago · 0 km deep · 78 km away
47. 1.621km ESE of Anza, CAMon, Aug 7, 12:38 AM PDT · 17588 days ago · 14 km deep · 3 km away
48. 1.83km SE of San Jacinto, CAMon, Aug 7, 6:00 AM PDT · 17588 days ago · 6 km deep · 54 km away
49. 1.915km E of Ocotillo Wells, CAMon, Aug 7, 11:35 AM PDT · 17588 days ago · 9 km deep · 60 km away
50. 1.611km NE of Coachella, CAMon, Aug 7, 1:59 PM PDT · 17588 days ago · 6 km deep · 46 km away
51. 1.915km E of Ocotillo Wells, CAMon, Aug 7, 2:59 PM PDT · 17588 days ago · 12 km deep · 61 km away
52. 2.015km NNE of Borrego Springs, CAMon, Aug 7, 5:53 PM PDT · 17588 days ago · 2 km deep · 17 km away
53. 1.58km SSW of Bombay Beach, CAMon, Aug 7, 7:02 PM PDT · 17588 days ago · 5 km deep · 69 km away
54. 1.613km N of Borrego Springs, CAMon, Aug 7, 7:56 PM PDT · 17588 days ago · 14 km deep · 14 km away
55. 1.810km NE of Desert Hot Springs, CAMon, Aug 7, 11:24 PM PDT · 17587 days ago · 7 km deep · 60 km away
56. 2.522km NE of Pine Valley, CATue, Aug 8, 5:08 PM PDT · 17587 days ago · 6 km deep · 62 km away
57. 2.422km ENE of Pine Valley, CATue, Aug 8, 5:09 PM PDT · 17587 days ago · 6 km deep · 62 km away
58. 1.912km N of Borrego Springs, CATue, Aug 8, 6:04 PM PDT · 17587 days ago · 12 km deep · 17 km away
59. 1.611km N of Borrego Springs, CATue, Aug 8, 6:29 PM PDT · 17587 days ago · 13 km deep · 18 km away
60. 1.66km WSW of Idyllwild, CATue, Aug 8, 11:57 PM PDT · 17586 days ago · 16 km deep · 38 km away

The first 60 of 160.

Before

1. 1.822km ESE of Anza, CATue, Jul 25, 10:41 AM PDT · 17601 days ago · 15 km deep · 1 km away
2. 1.97km NNW of Brawley, CAMon, Jul 24, 8:54 PM PDT · 17602 days ago · 9 km deep · 99 km away
3. 1.514km S of Anza, CAMon, Jul 24, 11:33 AM PDT · 17602 days ago · 14 km deep · 21 km away
4. 1.74km SW of Ocotillo, CAMon, Jul 24, 8:26 AM PDT · 17602 days ago · 7 km deep · 96 km away
5. 1.78km SSE of Big Bear Lake, CAMon, Jul 24, 12:45 AM PDT · 17602 days ago · 12 km deep · 86 km away
6. 1.911km SW of Niland, CASun, Jul 23, 5:26 PM PDT · 17603 days ago · 4 km deep · 86 km away
7. 1.811km WNW of Calipatria, CASun, Jul 23, 4:13 PM PDT · 17603 days ago · 3 km deep · 86 km away
8. 1.610km WNW of Calipatria, CASun, Jul 23, 4:12 PM PDT · 17603 days ago · 2 km deep · 87 km away
9. 1.66km S of Redlands, CASun, Jul 23, 9:50 AM PDT · 17603 days ago · 15 km deep · 88 km away
10. 2.024km W of Westmorland, CASun, Jul 23, 3:07 AM PDT · 17603 days ago · 3 km deep · 73 km away
11. 1.717km E of Julian, CASat, Jul 22, 9:00 PM PDT · 17603 days ago · 15 km deep · 46 km away
12. 2.517km NW of Yucca Valley, CASat, Jul 22, 2:14 PM PDT · 17604 days ago · 7 km deep · 83 km away
13. 1.721km ESE of Anza, CASat, Jul 22, 12:18 PM PDT · 17604 days ago · 14 km deep · 0 km away
14. 1.52km NW of Borrego Springs, CASat, Jul 22, 6:41 AM PDT · 17604 days ago · 5 km deep · 24 km away
15. 1.630km W of Desert Center, CASat, Jul 22, 4:01 AM PDT · 17604 days ago · 9 km deep · 76 km away
16. 1.72km S of Loma Linda, CAFri, Jul 21, 8:56 PM PDT · 17605 days ago · 17 km deep · 95 km away
17. 1.59km SSW of Idyllwild, CAFri, Jul 21, 7:37 PM PDT · 17605 days ago · 19 km deep · 35 km away
18. 2.58km N of Cabazon, CAFri, Jul 21, 4:40 AM PDT · 17605 days ago · 9 km deep · 63 km away
19. 1.710km NNW of Westmorland, CAThu, Jul 20, 7:10 PM PDT · 17606 days ago · 8 km deep · 86 km away
20. 1.610km S of Idyllwild, CAThu, Jul 20, 9:33 AM PDT · 17606 days ago · 16 km deep · 31 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3340929. Read Fri, Oct 2, 2026, 3:28 PM UTC.