M1.6 earthquake 16km ESE of Anza, CA

Magnitude

1.6 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Sun, Feb 5, 1978, 11:03 AM PST

UTC

1978-02-05 19:03:56 UTC

Depth

14.1 km (8.7 mi), shallow

Epicenter

33.507° N, 116.509° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

152°

Stations used

10

• Anza, CaliforniaPopulation 3,014. Forecast16 kmESE
• La Quinta, CaliforniaPopulation 40,476. Forecast25 kmSW
• Temecula, CaliforniaPopulation 110,003. Forecast59 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast107 kmNE

After

1. 2.020km WNW of Imperial, CASun, Feb 5, 11:22 AM PST · 17772 days ago · 10 km deep · 96 km away
2. 2.213km ENE of Big Bear City, CASun, Feb 5, 12:03 PM PST · 17772 days ago · 0 km deep · 91 km away
3. 1.616km ESE of Anza, CASun, Feb 5, 1:45 PM PST · 17772 days ago · 15 km deep · 2 km away
4. 1.814km ENE of Big Bear City, CASun, Feb 5, 2:43 PM PST · 17772 days ago · 3 km deep · 92 km away
5. 1.83km ENE of Westmorland, CASun, Feb 5, 3:51 PM PST · 17772 days ago · 10 km deep · 100 km away
6. 1.89km NE of Aguanga, CASun, Feb 5, 4:26 PM PST · 17772 days ago · 6 km deep · 27 km away
7. 3.213km N of Cabazon, CASun, Feb 5, 4:39 PM PST · 17772 days ago · 13 km deep · 63 km away
8. 1.814km N of Cabazon, CASun, Feb 5, 4:52 PM PST · 17772 days ago · 15 km deep · 65 km away
9. 3.313km N of Cabazon, CASun, Feb 5, 5:01 PM PST · 17772 days ago · 13 km deep · 63 km away
10. 2.317km ESE of Anza, CASun, Feb 5, 5:29 PM PST · 17772 days ago · 13 km deep · 1 km away
11. 1.614km N of Cabazon, CASun, Feb 5, 6:07 PM PST · 17772 days ago · 11 km deep · 65 km away
12. 2.212km SE of Bombay Beach, CASun, Feb 5, 6:09 PM PST · 17772 days ago · 6 km deep · 84 km away
13. 1.513km N of Cabazon, CASun, Feb 5, 6:18 PM PST · 17772 days ago · 6 km deep · 64 km away
14. 2.413km ENE of Big Bear City, CASun, Feb 5, 6:36 PM PST · 17772 days ago · 0 km deep · 91 km away
15. 2.54km WNW of Niland, CAMon, Feb 6, 4:35 AM PST · 17772 days ago · 3 km deep · 92 km away
16. 2.44km WNW of Niland, CAMon, Feb 6, 4:38 AM PST · 17772 days ago · 2 km deep · 93 km away
17. 2.03km W of Niland, CAMon, Feb 6, 4:39 AM PST · 17772 days ago · 0 km deep · 94 km away
18. 1.726km WNW of Desert Center, CAMon, Feb 6, 4:44 AM PST · 17772 days ago · 6 km deep · 83 km away
19. 2.826km WNW of Desert Center, CAMon, Feb 6, 4:45 AM PST · 17772 days ago · 4 km deep · 83 km away
20. 2.027km WNW of Desert Center, CAMon, Feb 6, 4:45 AM PST · 17772 days ago · 3 km deep · 82 km away
21. 1.75km WNW of Niland, CAMon, Feb 6, 4:48 AM PST · 17772 days ago · 6 km deep · 92 km away
22. 2.25km WNW of Niland, CAMon, Feb 6, 4:52 AM PST · 17772 days ago · 6 km deep · 92 km away
23. 3.55km WNW of Niland, CAMon, Feb 6, 4:57 AM PST · 17772 days ago · 4 km deep · 91 km away
24. 1.63km WSW of Niland, CAMon, Feb 6, 5:04 AM PST · 17772 days ago · 1 km deep · 94 km away
25. 1.83km W of Niland, CAMon, Feb 6, 5:07 AM PST · 17772 days ago · 1 km deep · 94 km away
26. 1.74km W of Niland, CAMon, Feb 6, 5:12 AM PST · 17772 days ago · 0 km deep · 93 km away
27. 1.65km WNW of Niland, CAMon, Feb 6, 5:13 AM PST · 17772 days ago · 4 km deep · 92 km away
28. 2.04km WNW of Niland, CAMon, Feb 6, 5:15 AM PST · 17772 days ago · 2 km deep · 93 km away
29. 1.93km W of Niland, CAMon, Feb 6, 5:18 AM PST · 17772 days ago · 3 km deep · 94 km away
30. 1.73km W of Niland, CAMon, Feb 6, 5:18 AM PST · 17772 days ago · 3 km deep · 94 km away
31. 1.527km WNW of Desert Center, CAMon, Feb 6, 5:57 AM PST · 17772 days ago · 4 km deep · 82 km away
32. 2.026km WNW of Desert Center, CAMon, Feb 6, 7:52 AM PST · 17772 days ago · 2 km deep · 82 km away
33. 1.73km W of Niland, CAMon, Feb 6, 8:10 AM PST · 17772 days ago · 0 km deep · 94 km away
34. 2.18km NNE of Banning, CAMon, Feb 6, 10:34 AM PST · 17772 days ago · 10 km deep · 62 km away
35. 1.512km N of Borrego Springs, CAMon, Feb 6, 10:49 AM PST · 17771 days ago · 12 km deep · 21 km away
36. 1.76km W of Niland, CAMon, Feb 6, 10:53 AM PST · 17771 days ago · 5 km deep · 91 km away
37. 2.24km WNW of Niland, CAMon, Feb 6, 10:53 AM PST · 17771 days ago · 0 km deep · 93 km away
38. 2.28km NNE of Banning, CAMon, Feb 6, 11:53 AM PST · 17771 days ago · 10 km deep · 62 km away
39. 2.39km N of Westmorland, CAMon, Feb 6, 3:58 PM PST · 17771 days ago · 9 km deep · 93 km away
40. 1.610km NE of Aguanga, CAMon, Feb 6, 5:47 PM PST · 17771 days ago · 6 km deep · 26 km away
41. 1.83km SSW of Mentone, CAMon, Feb 6, 9:56 PM PST · 17771 days ago · 9 km deep · 84 km away
42. 1.912km W of Westmorland, CAMon, Feb 6, 10:15 PM PST · 17771 days ago · 3 km deep · 88 km away
43. 1.63km SSW of Mentone, CAMon, Feb 6, 10:46 PM PST · 17771 days ago · 8 km deep · 84 km away
44. 1.73km SW of Mentone, CATue, Feb 7, 11:07 AM PST · 17770 days ago · 9 km deep · 85 km away
45. 1.63km ESE of Redlands, CATue, Feb 7, 11:10 AM PST · 17770 days ago · 9 km deep · 85 km away
46. 2.23km ESE of Redlands, CATue, Feb 7, 11:13 AM PST · 17770 days ago · 8 km deep · 85 km away
47. 1.95km NW of Aguanga, CATue, Feb 7, 4:41 PM PST · 17770 days ago · 14 km deep · 36 km away
48. 1.66km NE of Indio, CATue, Feb 7, 9:13 PM PST · 17770 days ago · 6 km deep · 42 km away
49. 1.827km WNW of Desert Center, CAWed, Feb 8, 3:47 AM PST · 17770 days ago · 6 km deep · 82 km away
50. 1.94km ESE of Bombay Beach, CAWed, Feb 8, 4:45 PM PST · 17769 days ago · 7 km deep · 78 km away
51. 1.717km ESE of Anza, CAThu, Feb 9, 5:04 AM PST · 17769 days ago · 13 km deep · 4 km away
52. 1.716km ESE of Anza, CAThu, Feb 9, 12:29 PM PST · 17768 days ago · 12 km deep · 4 km away
53. 1.84km SSW of Cabazon, CAThu, Feb 9, 4:44 PM PST · 17768 days ago · 6 km deep · 50 km away
54. 2.28km SSW of Borrego Springs, CAFri, Feb 10, 3:41 AM PST · 17768 days ago · 15 km deep · 37 km away
55. 1.926km WNW of Desert Center, CAFri, Feb 10, 9:16 AM PST · 17768 days ago · 3 km deep · 83 km away
56. 2.78km NW of Big Bear Lake, CAFri, Feb 10, 1:22 PM PST · 17767 days ago · 8 km deep · 97 km away
57. 1.73km WSW of Niland, CASat, Feb 11, 6:10 AM PST · 17767 days ago · 0 km deep · 95 km away
58. 1.69km NE of Cabazon, CASat, Feb 11, 1:21 PM PST · 17766 days ago · 6 km deep · 57 km away
59. 2.527km WNW of Desert Center, CASat, Feb 11, 11:37 PM PST · 17766 days ago · 1 km deep · 83 km away
60. 1.712km SSE of Ocotillo Wells, CASat, Feb 11, 11:44 PM PST · 17766 days ago · 6 km deep · 65 km away

The first 60 of 171.

Before

1. 1.810km NE of Aguanga, CASun, Feb 5, 6:45 AM PST · 17773 days ago · 7 km deep · 26 km away
2. 2.013km ENE of Big Bear City, CASun, Feb 5, 3:14 AM PST · 17773 days ago · 0 km deep · 91 km away
3. 3.713km ENE of Big Bear City, CASun, Feb 5, 1:53 AM PST · 17773 days ago · 0 km deep · 91 km away
4. 1.713km ENE of Big Bear City, CASun, Feb 5, 12:41 AM PST · 17773 days ago · 2 km deep · 91 km away
5. 2.313km ENE of Big Bear City, CASat, Feb 4, 8:50 PM PST · 17773 days ago · 0 km deep · 91 km away
6. 2.313km ENE of Big Bear City, CASat, Feb 4, 8:25 PM PST · 17773 days ago · 0 km deep · 91 km away
7. 2.222km ESE of Anza, CASat, Feb 4, 7:18 PM PST · 17773 days ago · 15 km deep · 5 km away
8. 1.75km WSW of Niland, CASat, Feb 4, 6:13 PM PST · 17773 days ago · 6 km deep · 94 km away
9. 1.63km W of Niland, CASat, Feb 4, 6:11 PM PST · 17773 days ago · 1 km deep · 94 km away
10. 1.82km WNW of Yucaipa, CASat, Feb 4, 1:43 PM PST · 17773 days ago · 16 km deep · 79 km away
11. 1.613km ENE of Big Bear City, CASat, Feb 4, 12:48 PM PST · 17773 days ago · 5 km deep · 91 km away
12. 1.710km SE of Anza, CASat, Feb 4, 10:15 AM PST · 17774 days ago · 9 km deep · 9 km away
13. 1.62km S of Niland, CASat, Feb 4, 5:04 AM PST · 17774 days ago · 10 km deep · 97 km away
14. 1.64km W of Niland, CASat, Feb 4, 5:03 AM PST · 17774 days ago · 4 km deep · 93 km away
15. 1.73km W of Niland, CASat, Feb 4, 4:54 AM PST · 17774 days ago · 0 km deep · 93 km away
16. 2.111km SE of Anza, CASat, Feb 4, 4:43 AM PST · 17774 days ago · 10 km deep · 7 km away
17. 1.710km NE of Aguanga, CAFri, Feb 3, 12:15 PM PST · 17774 days ago · 9 km deep · 26 km away
18. 2.36km E of Calimesa, CAFri, Feb 3, 8:17 AM PST · 17775 days ago · 13 km deep · 70 km away
19. 2.323km WSW of Westmorland, CAThu, Feb 2, 8:22 AM PST · 17776 days ago · 4 km deep · 87 km away
20. 1.826km WNW of Desert Center, CAThu, Feb 2, 7:33 AM PST · 17776 days ago · 1 km deep · 83 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci9998802. Read Sun, Oct 4, 2026, 6:18 AM UTC.