M1.9 earthquake 11km SE of Anza, CA

Magnitude

1.9 (mc), micro

Local time

Fri, May 12, 1978, 6:31 AM PDT

UTC

1978-05-12 13:31:59 UTC

Depth

9.1 km (5.7 mi), shallow

Epicenter

33.476° N, 116.607° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 2.0 km in depth

Depth from

From location

Station coverage gap

59°

Stations used

22

• Anza, CaliforniaPopulation 3,014. Forecast11 kmSE
• Rancho Mirage, CaliforniaPopulation 18,083. Forecast34 kmSSW
• Temecula, CaliforniaPopulation 110,003. Forecast50 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast99 kmNNE

After

1. 1.711km SE of Anza, CAThu, Jun 1, 12:40 PM PDT · 17645 days ago · 9 km deep · 1 km away
2. 1.56km SE of Big Bear City, CAThu, Jun 1, 3:02 PM PDT · 17645 days ago · 9 km deep · 85 km away
3. 2.63km N of Colton, CAThu, Jun 1, 7:37 PM PDT · 17645 days ago · 15 km deep · 95 km away
4. 2.111km S of Idyllwild, CAThu, Jun 1, 8:31 PM PDT · 17645 days ago · 16 km deep · 22 km away
5. 1.92km SW of San Bernardino, CAFri, Jun 2, 12:46 AM PDT · 17645 days ago · 12 km deep · 97 km away
6. 1.724km W of Desert Center, CAFri, Jun 2, 2:59 PM PDT · 17644 days ago · 0 km deep · 93 km away
7. 2.13km N of Colton, CASat, Jun 3, 2:00 AM PDT · 17644 days ago · 15 km deep · 95 km away
8. 1.74km SW of Yucca Valley, CASat, Jun 3, 3:58 AM PDT · 17643 days ago · 11 km deep · 70 km away
9. 2.04km NNE of Banning, CASun, Jun 4, 7:57 AM PDT · 17642 days ago · 9 km deep · 58 km away
10. 2.217km NW of Yucca Valley, CASun, Jun 4, 1:47 PM PDT · 17642 days ago · 6 km deep · 83 km away
11. 1.85km SSW of Big Bear Lake, CAMon, Jun 5, 1:40 AM PDT · 17642 days ago · 8 km deep · 87 km away
12. 1.816km NE of Borrego Springs, CAMon, Jun 5, 8:23 AM PDT · 17641 days ago · 13 km deep · 33 km away
13. 4.414km NNW of Warner Springs, CAMon, Jun 5, 9:03 AM PDT · 17641 days ago · 17 km deep · 11 km away
14. 1.914km S of Anza, CAMon, Jun 5, 9:08 AM PDT · 17641 days ago · 17 km deep · 10 km away
15. 1.914km S of Anza, CAMon, Jun 5, 9:22 AM PDT · 17641 days ago · 14 km deep · 10 km away
16. 1.914km S of Anza, CAMon, Jun 5, 9:23 AM PDT · 17641 days ago · 8 km deep · 9 km away
17. 1.814km S of Anza, CAMon, Jun 5, 10:13 AM PDT · 17641 days ago · 12 km deep · 10 km away
18. 1.913km S of Anza, CAMon, Jun 5, 10:42 AM PDT · 17641 days ago · 14 km deep · 9 km away
19. 2.915km S of Anza, CAMon, Jun 5, 7:00 PM PDT · 17641 days ago · 12 km deep · 10 km away
20. 2.211km N of Cabazon, CAMon, Jun 5, 9:05 PM PDT · 17641 days ago · 11 km deep · 62 km away
21. 1.912km WNW of Niland, CATue, Jun 6, 7:42 AM PDT · 17640 days ago · 4 km deep · 93 km away
22. 1.815km S of Anza, CATue, Jun 6, 12:09 PM PDT · 17640 days ago · 13 km deep · 10 km away
23. 1.516km NE of Borrego Springs, CATue, Jun 6, 4:37 PM PDT · 17640 days ago · 10 km deep · 33 km away
24. 1.618km NNW of Ocotillo Wells, CATue, Jun 6, 5:32 PM PDT · 17640 days ago · 6 km deep · 45 km away
25. 1.814km S of Anza, CATue, Jun 6, 6:58 PM PDT · 17640 days ago · 12 km deep · 10 km away
26. 1.58km ENE of Cabazon, CATue, Jun 6, 11:11 PM PDT · 17640 days ago · 5 km deep · 53 km away
27. 1.717km SSE of Big Bear Lake, CAWed, Jun 7, 1:08 AM PDT · 17640 days ago · 8 km deep · 73 km away
28. 2.323km WSW of Westmorland, CAWed, Jun 7, 1:45 AM PDT · 17640 days ago · 10 km deep · 90 km away
29. 1.611km SE of Anza, CAWed, Jun 7, 6:14 AM PDT · 17639 days ago · 7 km deep · 2 km away
30. 1.710km N of Borrego Springs, CAThu, Jun 8, 8:34 AM PDT · 17638 days ago · 12 km deep · 25 km away
31. 1.518km NW of Westmorland, CAFri, Jun 9, 4:52 AM PDT · 17637 days ago · 0 km deep · 87 km away
32. 1.56km NNE of Cabazon, CAFri, Jun 9, 6:13 AM PDT · 17637 days ago · 20 km deep · 57 km away
33. 1.87km E of Borrego Springs, CAFri, Jun 9, 10:36 AM PDT · 17637 days ago · 10 km deep · 38 km away
34. 2.13km NNW of San Jacinto, CAFri, Jun 9, 3:47 PM PDT · 17637 days ago · 13 km deep · 50 km away
35. 1.512km NNE of Cabazon, CASat, Jun 10, 5:13 AM PDT · 17636 days ago · 11 km deep · 62 km away
36. 1.812km ESE of Anza, CASat, Jun 10, 6:27 AM PDT · 17636 days ago · 14 km deep · 7 km away
37. 1.85km NE of Cabazon, CASat, Jun 10, 7:58 AM PDT · 17636 days ago · 15 km deep · 54 km away
38. 1.512km NNE of Ocotillo Wells, CASat, Jun 10, 6:12 PM PDT · 17636 days ago · 6 km deep · 53 km away
39. 1.77km S of Idyllwild, CASat, Jun 10, 11:45 PM PDT · 17636 days ago · 16 km deep · 24 km away
40. 1.94km SSE of Lake Henshaw, CASun, Jun 11, 1:02 AM PDT · 17636 days ago · 6 km deep · 32 km away
41. 1.79km ENE of Aguanga, CASun, Jun 11, 5:49 AM PDT · 17635 days ago · 6 km deep · 16 km away
42. 1.78km SSW of Idyllwild, CASun, Jun 11, 8:41 AM PDT · 17635 days ago · 15 km deep · 25 km away
43. 1.68km WSW of Anza, CASun, Jun 11, 11:55 AM PDT · 17635 days ago · 8 km deep · 14 km away
44. 2.76km SSE of Palomar Observatory, CASun, Jun 11, 1:14 PM PDT · 17635 days ago · 9 km deep · 29 km away
45. 2.28km SE of Valle Vista, CASun, Jun 11, 1:38 PM PDT · 17635 days ago · 14 km deep · 32 km away
46. 2.36km SW of Salton City, CASun, Jun 11, 2:36 PM PDT · 17635 days ago · 3 km deep · 61 km away
47. 2.08km WSW of Anza, CAMon, Jun 12, 10:32 AM PDT · 17634 days ago · 6 km deep · 14 km away
48. 1.67km WSW of Anza, CAMon, Jun 12, 3:42 PM PDT · 17634 days ago · 6 km deep · 14 km away
49. 1.75km SE of Banning, CATue, Jun 13, 8:36 AM PDT · 17633 days ago · 17 km deep · 51 km away
50. 2.214km SE of Anza, CATue, Jun 13, 9:59 AM PDT · 17633 days ago · 8 km deep · 5 km away
51. 2.110km NE of Ocotillo Wells, CATue, Jun 13, 1:49 PM PDT · 17633 days ago · 7 km deep · 58 km away
52. 1.912km SW of Morongo Valley, CAWed, Jun 14, 1:22 AM PDT · 17633 days ago · 8 km deep · 57 km away
53. 1.88km S of Morongo Valley, CAWed, Jun 14, 4:54 AM PDT · 17632 days ago · 8 km deep · 55 km away
54. 2.510km NNE of Ocotillo Wells, CAWed, Jun 14, 5:39 AM PDT · 17632 days ago · 6 km deep · 57 km away
55. 1.822km ESE of Julian, CAWed, Jun 14, 10:24 AM PDT · 17632 days ago · 6 km deep · 55 km away
56. 3.010km NE of Aguanga, CAWed, Jun 14, 12:44 PM PDT · 17632 days ago · 12 km deep · 16 km away
57. 1.86km E of Borrego Springs, CAWed, Jun 14, 4:29 PM PDT · 17632 days ago · 14 km deep · 36 km away
58. 1.610km SSW of Idyllwild, CAThu, Jun 15, 2:07 AM PDT · 17632 days ago · 16 km deep · 26 km away
59. 1.818km ESE of Anza, CAThu, Jun 15, 3:52 AM PDT · 17631 days ago · 11 km deep · 11 km away
60. 1.54km SW of Big Bear Lake, CAFri, Jun 16, 5:13 AM PDT · 17630 days ago · 6 km deep · 88 km away

The first 60 of 162.

From the USGS Earthquake Hazards Program and its partner networks, event ci3339432. Read Tue, Sep 22, 2026, 8:57 PM UTC.