M1.6 earthquake 21km ESE of Anza, CA

Magnitude

1.6 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Fri, Dec 1, 1978, 12:18 AM PST

UTC

1978-12-01 08:18:21 UTC

Depth

9.0 km (5.6 mi), shallow

Epicenter

33.482° N, 116.463° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 2.6 km in depth

Depth from

From location

Station coverage gap

100°

Stations used

10

• Anza, CaliforniaPopulation 3,014. Forecast21 kmESE
• La Quinta, CaliforniaPopulation 40,476. Forecast25 kmSW
• Temecula, CaliforniaPopulation 110,003. Forecast64 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast107 kmNE

After

1. 2.221km ESE of Anza, CAFri, Dec 1, 12:26 AM PST · 17471 days ago · 15 km deep · 1 km away
2. 1.87km WSW of Anza, CAFri, Dec 1, 9:25 AM PST · 17471 days ago · 6 km deep · 26 km away
3. 3.511km WNW of Garnet, CAFri, Dec 1, 3:20 PM PST · 17471 days ago · 18 km deep · 52 km away
4. 1.56km ENE of Westmorland, CAFri, Dec 1, 8:37 PM PST · 17470 days ago · 10 km deep · 97 km away
5. 1.55km ENE of Ocotillo Wells, CAFri, Dec 1, 11:05 PM PST · 17470 days ago · 6 km deep · 50 km away
6. 2.31km ENE of Loma Linda, CASun, Dec 3, 2:53 AM PST · 17469 days ago · 17 km deep · 97 km away
7. 1.70km WNW of Beaumont, CASun, Dec 3, 10:38 AM PST · 17469 days ago · 18 km deep · 69 km away
8. 1.525km ESE of Twentynine Palms, CASun, Dec 3, 12:16 PM PST · 17469 days ago · 12 km deep · 88 km away
9. 2.211km E of Borrego Springs, CASun, Dec 3, 9:57 PM PST · 17468 days ago · 3 km deep · 33 km away
10. 2.04km SE of Loma Linda, CAMon, Dec 4, 3:06 AM PST · 17468 days ago · 15 km deep · 93 km away
11. 2.224km ENE of Pine Valley, CAMon, Dec 4, 4:20 AM PST · 17468 days ago · 14 km deep · 66 km away
12. 1.710km NE of Ocotillo Wells, CAMon, Dec 4, 4:21 PM PST · 17467 days ago · 6 km deep · 48 km away
13. 1.73km ENE of Big Bear City, CATue, Dec 5, 11:16 AM PST · 17467 days ago · 7 km deep · 94 km away
14. 1.826km WSW of Westmorland, CATue, Dec 5, 12:26 PM PST · 17467 days ago · 5 km deep · 77 km away
15. 2.34km W of Yucca Valley, CATue, Dec 5, 9:19 PM PST · 17466 days ago · 3 km deep · 71 km away
16. 1.913km ESE of Desert Hot Springs, CAWed, Dec 6, 10:40 AM PST · 17466 days ago · 5 km deep · 51 km away
17. 2.04km W of Yucca Valley, CAWed, Dec 6, 11:56 AM PST · 17466 days ago · 3 km deep · 70 km away
18. 2.34km W of Yucca Valley, CAWed, Dec 6, 11:59 AM PST · 17466 days ago · 3 km deep · 71 km away
19. 2.015km SE of Anza, CAThu, Dec 7, 1:55 AM PST · 17465 days ago · 13 km deep · 7 km away
20. 1.510km NW of Garnet, CAThu, Dec 7, 3:15 AM PST · 17465 days ago · 7 km deep · 55 km away
21. 1.626km WNW of Desert Center, CAThu, Dec 7, 4:03 AM PST · 17465 days ago · 1 km deep · 80 km away
22. 2.013km E of Desert Hot Springs, CAThu, Dec 7, 5:15 AM PST · 17465 days ago · 5 km deep · 52 km away
23. 1.524km ESE of Anza, CAThu, Dec 7, 10:20 AM PST · 17465 days ago · 13 km deep · 2 km away
24. 2.023km ESE of Anza, CAThu, Dec 7, 10:23 AM PST · 17465 days ago · 16 km deep · 2 km away
25. 1.810km S of Idyllwild, CAFri, Dec 8, 2:36 AM PST · 17464 days ago · 16 km deep · 31 km away
26. 1.524km ENE of Pine Valley, CAFri, Dec 8, 2:57 AM PST · 17464 days ago · 6 km deep · 62 km away
27. 1.523km SW of Westmorland, CAFri, Dec 8, 6:16 PM PST · 17463 days ago · 5 km deep · 86 km away
28. 2.08km E of Desert Hot Springs, CAFri, Dec 8, 7:00 PM PST · 17463 days ago · 5 km deep · 54 km away
29. 1.76km SSW of Idyllwild, CASat, Dec 9, 4:38 AM PST · 17463 days ago · 18 km deep · 36 km away
30. 2.424km WSW of Westmorland, CASun, Dec 10, 8:09 PM PST · 17461 days ago · 11 km deep · 81 km away
31. 1.64km NNW of Brawley, CASun, Dec 10, 8:21 PM PST · 17461 days ago · 6 km deep · 99 km away
32. 2.15km NNW of Brawley, CASun, Dec 10, 8:44 PM PST · 17461 days ago · 10 km deep · 99 km away
33. 1.95km NNW of Brawley, CASun, Dec 10, 9:49 PM PST · 17461 days ago · 10 km deep · 99 km away
34. 1.75km NNW of Brawley, CASun, Dec 10, 10:08 PM PST · 17461 days ago · 7 km deep · 100 km away
35. 1.57km SW of Morongo Valley, CAMon, Dec 11, 11:03 AM PST · 17461 days ago · 12 km deep · 61 km away
36. 1.922km NE of Pine Valley, CATue, Dec 12, 4:07 AM PST · 17460 days ago · 6 km deep · 62 km away
37. 2.05km NNW of Brawley, CATue, Dec 12, 5:05 AM PST · 17460 days ago · 8 km deep · 99 km away
38. 1.517km ENE of Borrego Springs, CATue, Dec 12, 5:10 AM PST · 17460 days ago · 12 km deep · 28 km away
39. 1.94km NNW of Brawley, CATue, Dec 12, 6:34 AM PST · 17460 days ago · 9 km deep · 100 km away
40. 1.86km N of Brawley, CATue, Dec 12, 10:21 AM PST · 17460 days ago · 8 km deep · 99 km away
41. 1.86km N of Brawley, CATue, Dec 12, 10:22 AM PST · 17460 days ago · 8 km deep · 100 km away
42. 1.94km NNW of Brawley, CATue, Dec 12, 10:27 AM PST · 17460 days ago · 9 km deep · 100 km away
43. 2.04km NNW of Brawley, CATue, Dec 12, 10:51 AM PST · 17460 days ago · 10 km deep · 100 km away
44. 2.612km SW of Westmorland, CAWed, Dec 13, 2:14 AM PST · 17459 days ago · 10 km deep · 93 km away
45. 1.724km W of Desert Center, CAWed, Dec 13, 2:11 PM PST · 17459 days ago · 6 km deep · 80 km away
46. 1.925km WNW of Desert Center, CAWed, Dec 13, 2:23 PM PST · 17459 days ago · 2 km deep · 80 km away
47. 1.76km SW of Idyllwild, CAWed, Dec 13, 2:46 PM PST · 17459 days ago · 16 km deep · 36 km away
48. 1.911km N of Cabazon, CAWed, Dec 13, 4:41 PM PST · 17458 days ago · 7 km deep · 67 km away
49. 1.912km N of Cabazon, CAWed, Dec 13, 4:43 PM PST · 17458 days ago · 9 km deep · 68 km away
50. 1.914km NE of Indio, CAWed, Dec 13, 6:17 PM PST · 17458 days ago · 3 km deep · 49 km away
51. 1.914km NE of Indio, CAWed, Dec 13, 6:38 PM PST · 17458 days ago · 3 km deep · 49 km away
52. 2.06km ENE of Cabazon, CAWed, Dec 13, 10:17 PM PST · 17458 days ago · 15 km deep · 57 km away
53. 1.96km E of Westmorland, CAThu, Dec 14, 1:31 AM PST · 17458 days ago · 9 km deep · 97 km away
54. 1.811km N of Borrego Springs, CAThu, Dec 14, 6:43 AM PST · 17458 days ago · 14 km deep · 16 km away
55. 2.120km N of Indio, CAThu, Dec 14, 11:46 AM PST · 17458 days ago · 6 km deep · 54 km away
56. 2.619km N of Indio, CAThu, Dec 14, 4:50 PM PST · 17457 days ago · 1 km deep · 52 km away
57. 3.318km NNE of Indio, CAThu, Dec 14, 7:36 PM PST · 17457 days ago · 5 km deep · 52 km away
58. 1.620km N of Indio, CAFri, Dec 15, 3:13 AM PST · 17457 days ago · 5 km deep · 53 km away
59. 3.217km NNE of Indio, CAFri, Dec 15, 4:27 AM PST · 17457 days ago · 2 km deep · 51 km away
60. 1.620km NNE of Indio, CAFri, Dec 15, 5:53 AM PST · 17457 days ago · 5 km deep · 54 km away

The first 60 of 170.

Before

1. 1.822km ESE of Anza, CAThu, Nov 30, 6:54 PM PST · 17471 days ago · 15 km deep · 1 km away
2. 3.023km ESE of Anza, CAThu, Nov 30, 6:29 PM PST · 17471 days ago · 11 km deep · 2 km away
3. 1.618km NW of Ocotillo, CAThu, Nov 30, 3:02 PM PST · 17472 days ago · 8 km deep · 77 km away
4. 1.811km W of Niland, CAThu, Nov 30, 9:43 AM PST · 17472 days ago · 5 km deep · 81 km away
5. 1.616km ESE of Anza, CAThu, Nov 30, 4:06 AM PST · 17472 days ago · 15 km deep · 5 km away
6. 2.19km W of Niland, CAThu, Nov 30, 2:09 AM PST · 17472 days ago · 4 km deep · 83 km away
7. 2.04km NW of Brawley, CAWed, Nov 29, 8:51 PM PST · 17472 days ago · 5 km deep · 99 km away
8. 1.64km WNW of Brawley, CAWed, Nov 29, 8:48 PM PST · 17472 days ago · 5 km deep · 99 km away
9. 2.19km SW of Lake Henshaw, CAWed, Nov 29, 3:24 AM PST · 17473 days ago · 10 km deep · 48 km away
10. 2.32km S of Ocotillo, CATue, Nov 28, 10:14 PM PST · 17473 days ago · 13 km deep · 96 km away
11. 2.69km NE of Desert Hot Springs, CATue, Nov 28, 3:53 PM PST · 17474 days ago · 0 km deep · 60 km away
12. 2.514km SSE of Anza, CAMon, Nov 27, 9:32 PM PST · 17474 days ago · 14 km deep · 12 km away
13. 2.015km SE of Anza, CAMon, Nov 27, 9:14 PM PST · 17474 days ago · 13 km deep · 12 km away
14. 2.29km NE of Desert Hot Springs, CASun, Nov 26, 6:19 PM PST · 17475 days ago · 10 km deep · 60 km away
15. 1.815km WNW of Westmorland, CASun, Nov 26, 1:13 PM PST · 17476 days ago · 6 km deep · 78 km away
16. 1.84km WSW of Big Bear Lake, CASun, Nov 26, 11:50 AM PST · 17476 days ago · 8 km deep · 94 km away
17. 1.626km W of Westmorland, CASun, Nov 26, 9:32 AM PST · 17476 days ago · 8 km deep · 76 km away
18. 2.36km W of Lake Henshaw, CASun, Nov 26, 8:06 AM PST · 17476 days ago · 13 km deep · 43 km away
19. 1.610km N of Indio, CASun, Nov 26, 7:58 AM PST · 17476 days ago · 10 km deep · 44 km away
20. 2.14km ENE of Yucaipa, CASun, Nov 26, 6:03 AM PST · 17476 days ago · 15 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3314113. Read Thu, Oct 1, 2026, 11:23 AM UTC.