M1.8 earthquake 10km SE of Anza, CA

Magnitude

1.8 (mc), micro

Local time

Sat, Sep 23, 1978, 8:56 PM PDT

UTC

1978-09-24 03:56:59 UTC

Depth

7.5 km (4.6 mi), shallow

Epicenter

33.478° N, 116.610° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 2.5 km in depth

Depth from

From location

Station coverage gap

58°

Stations used

23

• Anza, CaliforniaPopulation 3,014. Forecast10 kmSE
• Rancho Mirage, CaliforniaPopulation 18,083. Forecast34 kmSSW
• Temecula, CaliforniaPopulation 110,003. Forecast50 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast99 kmNNE

After

1. 1.88km WNW of Lake Henshaw, CASat, Sep 23, 10:43 PM PDT · 17538 days ago · 13 km deep · 31 km away
2. 1.74km NE of Running Springs, CASun, Sep 24, 1:58 AM PDT · 17538 days ago · 6 km deep · 95 km away
3. 1.610km SE of Ocotillo Wells, CASun, Sep 24, 2:31 AM PDT · 17538 days ago · 15 km deep · 68 km away
4. 1.724km NNW of Borrego Springs, CASun, Sep 24, 5:49 AM PDT · 17538 days ago · 8 km deep · 16 km away
5. 1.813km WSW of Niland, CASun, Sep 24, 8:19 AM PDT · 17538 days ago · 5 km deep · 95 km away
6. 1.513km NE of Joshua Tree, CASun, Sep 24, 8:43 AM PDT · 17538 days ago · 9 km deep · 89 km away
7. 1.613km NE of Borrego Springs, CASun, Sep 24, 11:02 AM PDT · 17537 days ago · 12 km deep · 33 km away
8. 1.610km SW of Morongo Valley, CASun, Sep 24, 11:45 AM PDT · 17537 days ago · 9 km deep · 55 km away
9. 1.719km ESE of Anza, CASun, Sep 24, 4:09 PM PDT · 17537 days ago · 9 km deep · 13 km away
10. 2.54km ENE of Running Springs, CAMon, Sep 25, 5:35 AM PDT · 17537 days ago · 2 km deep · 93 km away
11. 1.75km ENE of Running Springs, CAMon, Sep 25, 5:43 AM PDT · 17537 days ago · 11 km deep · 94 km away
12. 1.714km SE of Big Bear City, CAMon, Sep 25, 5:48 AM PDT · 17537 days ago · 2 km deep · 78 km away
13. 1.614km NNE of Borrego Springs, CAMon, Sep 25, 7:22 AM PDT · 17537 days ago · 14 km deep · 30 km away
14. 2.04km ENE of Running Springs, CAMon, Sep 25, 7:41 AM PDT · 17537 days ago · 2 km deep · 93 km away
15. 2.013km NE of Trabuco Canyon, CAMon, Sep 25, 8:40 AM PDT · 17537 days ago · 5 km deep · 88 km away
16. 1.811km NNW of Anza, CAMon, Sep 25, 1:37 PM PDT · 17536 days ago · 14 km deep · 21 km away
17. 1.524km W of Westmorland, CATue, Sep 26, 2:06 AM PDT · 17536 days ago · 15 km deep · 82 km away
18. 1.918km ESE of Anza, CATue, Sep 26, 10:43 AM PDT · 17535 days ago · 1 km deep · 12 km away
19. 1.79km ENE of Borrego Springs, CATue, Sep 26, 5:25 PM PDT · 17535 days ago · 14 km deep · 37 km away
20. 1.67km NNW of Big Bear City, CAWed, Sep 27, 2:17 AM PDT · 17535 days ago · 6 km deep · 97 km away
21. 1.72km ESE of Loma Linda, CAWed, Sep 27, 2:52 PM PDT · 17534 days ago · 16 km deep · 85 km away
22. 2.311km NE of Cabazon, CAThu, Sep 28, 1:55 PM PDT · 17533 days ago · 14 km deep · 59 km away
23. 3.824km SSW of Ocotillo Wells, CAThu, Sep 28, 4:13 PM PDT · 17533 days ago · 16 km deep · 68 km away
24. 2.226km SSW of Ocotillo Wells, CAThu, Sep 28, 4:16 PM PDT · 17533 days ago · 15 km deep · 68 km away
25. 1.924km SSW of Ocotillo Wells, CAThu, Sep 28, 4:20 PM PDT · 17533 days ago · 11 km deep · 65 km away
26. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 4:26 PM PDT · 17533 days ago · 12 km deep · 66 km away
27. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 4:29 PM PDT · 17533 days ago · 7 km deep · 65 km away
28. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 4:30 PM PDT · 17533 days ago · 13 km deep · 66 km away
29. 1.724km SSW of Ocotillo Wells, CAThu, Sep 28, 4:31 PM PDT · 17533 days ago · 7 km deep · 66 km away
30. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 4:32 PM PDT · 17533 days ago · 6 km deep · 65 km away
31. 1.624km SSW of Ocotillo Wells, CAThu, Sep 28, 4:53 PM PDT · 17533 days ago · 6 km deep · 65 km away
32. 2.223km SSW of Ocotillo Wells, CAThu, Sep 28, 4:54 PM PDT · 17533 days ago · 15 km deep · 66 km away
33. 2.024km SSW of Ocotillo Wells, CAThu, Sep 28, 5:17 PM PDT · 17533 days ago · 15 km deep · 67 km away
34. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 5:36 PM PDT · 17533 days ago · 6 km deep · 66 km away
35. 1.524km SSW of Ocotillo Wells, CAThu, Sep 28, 5:37 PM PDT · 17533 days ago · 7 km deep · 66 km away
36. 1.624km SSW of Ocotillo Wells, CAThu, Sep 28, 6:30 PM PDT · 17533 days ago · 6 km deep · 66 km away
37. 1.924km SSW of Ocotillo Wells, CAThu, Sep 28, 6:42 PM PDT · 17533 days ago · 14 km deep · 66 km away
38. 1.824km SSW of Ocotillo Wells, CAThu, Sep 28, 7:53 PM PDT · 17533 days ago · 14 km deep · 66 km away
39. 1.724km SSW of Ocotillo Wells, CAThu, Sep 28, 8:24 PM PDT · 17533 days ago · 6 km deep · 66 km away
40. 1.723km SSW of Ocotillo Wells, CAThu, Sep 28, 8:38 PM PDT · 17533 days ago · 14 km deep · 65 km away
41. 2.424km SSW of Ocotillo Wells, CAFri, Sep 29, 12:06 AM PDT · 17533 days ago · 15 km deep · 67 km away
42. 1.524km SSW of Ocotillo Wells, CAFri, Sep 29, 2:09 AM PDT · 17533 days ago · 11 km deep · 65 km away
43. 1.923km SSW of Ocotillo Wells, CAFri, Sep 29, 2:23 AM PDT · 17533 days ago · 6 km deep · 65 km away
44. 1.624km SSW of Ocotillo Wells, CAFri, Sep 29, 2:43 AM PDT · 17533 days ago · 11 km deep · 66 km away
45. 1.725km SW of Ocotillo Wells, CAFri, Sep 29, 3:34 AM PDT · 17533 days ago · 6 km deep · 60 km away
46. 1.923km SSW of La Quinta, CAFri, Sep 29, 3:49 AM PDT · 17533 days ago · 10 km deep · 19 km away
47. 2.86km NNE of Green Acres, CAFri, Sep 29, 6:49 AM PDT · 17533 days ago · 13 km deep · 54 km away
48. 2.74km N of Banning, CAFri, Sep 29, 10:12 AM PDT · 17532 days ago · 17 km deep · 59 km away
49. 1.623km SSW of Ocotillo Wells, CAFri, Sep 29, 3:29 PM PDT · 17532 days ago · 6 km deep · 65 km away
50. 1.616km SSE of Joshua Tree, CAFri, Sep 29, 4:43 PM PDT · 17532 days ago · 3 km deep · 67 km away
51. 2.715km S of Anza, CAFri, Sep 29, 5:03 PM PDT · 17532 days ago · 12 km deep · 10 km away
52. 1.824km SSW of Ocotillo Wells, CAFri, Sep 29, 7:12 PM PDT · 17532 days ago · 15 km deep · 66 km away
53. 1.724km SSW of Ocotillo Wells, CASat, Sep 30, 12:35 AM PDT · 17532 days ago · 6 km deep · 66 km away
54. 1.513km W of Niland, CASat, Sep 30, 5:57 AM PDT · 17532 days ago · 5 km deep · 92 km away
55. 2.222km NE of Pine Valley, CASat, Sep 30, 2:02 PM PDT · 17531 days ago · 11 km deep · 66 km away
56. 1.64km NNE of Joshua Tree, CASun, Oct 1, 9:32 PM PDT · 17530 days ago · 1 km deep · 82 km away
57. 1.74km ENE of Running Springs, CASun, Oct 1, 9:50 PM PDT · 17530 days ago · 2 km deep · 92 km away
58. 2.16km NNE of Yucca Valley, CAMon, Oct 2, 1:34 PM PDT · 17529 days ago · 0 km deep · 79 km away
59. 2.210km ESE of Julian, CAMon, Oct 2, 3:00 PM PDT · 17529 days ago · 8 km deep · 48 km away
60. 1.923km W of Westmorland, CAMon, Oct 2, 5:13 PM PDT · 17529 days ago · 10 km deep · 84 km away

The first 60 of 172.

Before

1. 1.63km NNW of San Jacinto, CASat, Sep 23, 8:08 PM PDT · 17538 days ago · 13 km deep · 49 km away
2. 1.618km ESE of Anza, CASat, Sep 23, 6:32 PM PDT · 17538 days ago · 13 km deep · 10 km away
3. 1.917km NE of Coachella, CASat, Sep 23, 6:04 PM PDT · 17538 days ago · 0 km deep · 63 km away
4. 1.64km ENE of Running Springs, CASat, Sep 23, 4:14 PM PDT · 17538 days ago · 2 km deep · 93 km away
5. 2.14km ENE of Running Springs, CASat, Sep 23, 4:06 PM PDT · 17538 days ago · 2 km deep · 94 km away
6. 1.84km ENE of Running Springs, CASat, Sep 23, 9:31 AM PDT · 17538 days ago · 2 km deep · 93 km away
7. 1.823km NNW of Borrego Springs, CASat, Sep 23, 7:42 AM PDT · 17539 days ago · 7 km deep · 17 km away
8. 1.710km NE of Indio, CASat, Sep 23, 3:42 AM PDT · 17539 days ago · 0 km deep · 56 km away
9. 1.513km WSW of Niland, CASat, Sep 23, 3:32 AM PDT · 17539 days ago · 5 km deep · 95 km away
10. 1.714km N of Borrego Springs, CASat, Sep 23, 2:09 AM PDT · 17539 days ago · 10 km deep · 23 km away
11. 1.614km WSW of Niland, CASat, Sep 23, 12:22 AM PDT · 17539 days ago · 4 km deep · 94 km away
12. 1.614km S of Anza, CAFri, Sep 22, 11:29 PM PDT · 17539 days ago · 14 km deep · 10 km away
13. 1.75km SSE of Banning, CAFri, Sep 22, 9:14 AM PDT · 17539 days ago · 14 km deep · 51 km away
14. 1.713km WSW of Niland, CAFri, Sep 22, 9:07 AM PDT · 17540 days ago · 5 km deep · 94 km away
15. 1.913km WSW of Niland, CAFri, Sep 22, 5:18 AM PDT · 17540 days ago · 5 km deep · 94 km away
16. 1.814km WSW of Niland, CAFri, Sep 22, 5:13 AM PDT · 17540 days ago · 5 km deep · 94 km away
17. 1.84km ENE of Running Springs, CAFri, Sep 22, 5:04 AM PDT · 17540 days ago · 0 km deep · 93 km away
18. 1.94km ENE of Running Springs, CAFri, Sep 22, 4:50 AM PDT · 17540 days ago · 2 km deep · 93 km away
19. 1.54km ENE of Running Springs, CAFri, Sep 22, 4:50 AM PDT · 17540 days ago · 2 km deep · 92 km away
20. 2.415km WSW of Niland, CAFri, Sep 22, 4:25 AM PDT · 17540 days ago · 4 km deep · 92 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3341964. Read Wed, Sep 30, 2026, 3:43 AM UTC.