M1.6 earthquake 6km WSW of Beaumont, CA

Magnitude

1.6 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Aug 20, 1981, 9:05 AM PDT

UTC

1981-08-20 16:05:21 UTC

Depth

10.6 km (6.6 mi), shallow

Epicenter

33.901° N, 117.036° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.6 km in depth

Depth from

From location

Station coverage gap

43°

Stations used

35

• Beaumont, CaliforniaPopulation 43,811. Forecast6 kmWSW
• Moreno Valley, CaliforniaPopulation 204,198. Forecast18 kmESE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast113 kmE

After

1. 2.010km WSW of Anza, CAThu, Aug 20, 3:40 PM PDT · 16479 days ago · 3 km deep · 51 km away
2. 1.813km NE of Thousand Palms, CAThu, Aug 20, 10:10 PM PDT · 16479 days ago · 7 km deep · 68 km away
3. 1.810km N of Cabazon, CAFri, Aug 21, 5:41 AM PDT · 16479 days ago · 15 km deep · 25 km away
4. 1.511km SW of Anza, CASat, Aug 22, 6:24 AM PDT · 16478 days ago · 3 km deep · 51 km away
5. 2.110km NNE of Borrego Springs, CASat, Aug 22, 8:44 PM PDT · 16477 days ago · 13 km deep · 90 km away
6. 1.611km WSW of Anza, CASun, Aug 23, 11:30 AM PDT · 16476 days ago · 4 km deep · 49 km away
7. 2.02km ESE of Loma Linda, CASun, Aug 23, 9:55 PM PDT · 16476 days ago · 9 km deep · 24 km away
8. 1.54km SSE of San Juan Capistrano, CATue, Aug 25, 12:25 AM PDT · 16475 days ago · 12 km deep · 74 km away
9. 1.76km S of Idyllwild, CATue, Aug 25, 7:35 AM PDT · 16475 days ago · 14 km deep · 38 km away
10. 1.65km SSE of Murrieta, CATue, Aug 25, 7:15 PM PDT · 16474 days ago · 4 km deep · 45 km away
11. 2.01km SE of Murrieta, CAThu, Aug 27, 11:30 AM PDT · 16472 days ago · 11 km deep · 42 km away
12. 1.612km NE of Thousand Palms, CAThu, Aug 27, 1:04 PM PDT · 16472 days ago · 5 km deep · 68 km away
13. 1.68km ENE of Aguanga, CAThu, Aug 27, 2:46 PM PDT · 16472 days ago · 5 km deep · 52 km away
14. 1.510km NE of Aguanga, CAFri, Aug 28, 8:02 AM PDT · 16471 days ago · 3 km deep · 51 km away
15. 2.519km N of Yucca Valley, CAFri, Aug 28, 4:49 PM PDT · 16471 days ago · -1 km deep · 68 km away
16. 2.06km NNE of Cabazon, CAFri, Aug 28, 10:49 PM PDT · 16471 days ago · 6 km deep · 26 km away
17. 1.81km SSW of Murrieta, CASat, Aug 29, 7:14 AM PDT · 16471 days ago · 11 km deep · 43 km away
18. 3.08km NNW of Lake Henshaw, CASat, Aug 29, 2:57 PM PDT · 16470 days ago · 8 km deep · 70 km away
19. 2.46km WSW of Devore, CASun, Aug 30, 9:17 PM PDT · 16469 days ago · 5 km deep · 52 km away
20. 1.632km SE of Barstow, CAMon, Aug 31, 3:30 PM PDT · 16468 days ago · -1 km deep · 92 km away
21. 1.811km NE of Aguanga, CATue, Sep 1, 7:05 AM PDT · 16468 days ago · 4 km deep · 50 km away
22. 1.64km SW of Banning, CATue, Sep 1, 9:56 PM PDT · 16467 days ago · 12 km deep · 12 km away
23. 1.59km NNW of Warner Springs, CAWed, Sep 2, 7:07 AM PDT · 16467 days ago · 9 km deep · 69 km away
24. 1.716km N of Borrego Springs, CAWed, Sep 2, 8:55 AM PDT · 16466 days ago · 4 km deep · 83 km away
25. 3.04km ESE of Palomar Observatory, CAWed, Sep 2, 4:50 PM PDT · 16466 days ago · 6 km deep · 65 km away
26. 1.54km E of Palomar Observatory, CAWed, Sep 2, 5:30 PM PDT · 16466 days ago · 6 km deep · 63 km away
27. 1.522km ESE of Anza, CAThu, Sep 3, 9:22 AM PDT · 16465 days ago · 10 km deep · 72 km away
28. 4.08km NE of Julian, CAThu, Sep 3, 5:28 PM PDT · 16465 days ago · 18 km deep · 97 km away
29. 2.410km NNE of Julian, CAThu, Sep 3, 5:30 PM PDT · 16465 days ago · 13 km deep · 93 km away
30. 1.89km NNE of Julian, CAThu, Sep 3, 5:31 PM PDT · 16465 days ago · 16 km deep · 94 km away
31. 1.710km NNE of Julian, CAThu, Sep 3, 5:33 PM PDT · 16465 days ago · 15 km deep · 94 km away
32. 1.59km NNE of Julian, CAThu, Sep 3, 5:34 PM PDT · 16465 days ago · 3 km deep · 95 km away
33. 2.58km NNE of Julian, CAThu, Sep 3, 5:34 PM PDT · 16465 days ago · 12 km deep · 95 km away
34. 1.58km NNE of Julian, CAThu, Sep 3, 5:34 PM PDT · 16465 days ago · 14 km deep · 94 km away
35. 1.59km NNE of Julian, CAThu, Sep 3, 5:35 PM PDT · 16465 days ago · 19 km deep · 94 km away
36. 1.78km NNE of Julian, CAThu, Sep 3, 5:36 PM PDT · 16465 days ago · 16 km deep · 95 km away
37. 1.87km NNE of Julian, CAThu, Sep 3, 5:38 PM PDT · 16465 days ago · 12 km deep · 95 km away
38. 3.78km NE of Julian, CAThu, Sep 3, 5:39 PM PDT · 16465 days ago · 18 km deep · 97 km away
39. 2.28km NNE of Julian, CAThu, Sep 3, 5:43 PM PDT · 16465 days ago · 15 km deep · 95 km away
40. 1.68km NNE of Julian, CAThu, Sep 3, 6:07 PM PDT · 16465 days ago · 14 km deep · 95 km away
41. 2.28km NNE of Julian, CAThu, Sep 3, 6:16 PM PDT · 16465 days ago · 17 km deep · 95 km away
42. 1.98km NNE of Julian, CAThu, Sep 3, 6:26 PM PDT · 16465 days ago · 16 km deep · 96 km away
43. 1.510km NNE of Julian, CAThu, Sep 3, 6:28 PM PDT · 16465 days ago · 13 km deep · 94 km away
44. 2.78km NNE of Julian, CAThu, Sep 3, 6:35 PM PDT · 16465 days ago · 15 km deep · 95 km away
45. 2.58km NNE of Julian, CAThu, Sep 3, 7:27 PM PDT · 16465 days ago · 17 km deep · 96 km away
46. 1.510km NNE of Julian, CAThu, Sep 3, 10:51 PM PDT · 16465 days ago · 14 km deep · 94 km away
47. 1.525km N of Yucca Valley, CAFri, Sep 4, 12:27 AM PDT · 16465 days ago · 0 km deep · 72 km away
48. 1.59km NNE of Julian, CASat, Sep 5, 4:04 AM PDT · 16464 days ago · 14 km deep · 94 km away
49. 1.91km WNW of Buena Park, CASat, Sep 5, 3:35 PM PDT · 16463 days ago · 14 km deep · 90 km away
50. 1.78km NNE of Julian, CASat, Sep 5, 11:15 PM PDT · 16463 days ago · 12 km deep · 95 km away
51. 2.03km ENE of Colton, CASun, Sep 6, 4:23 AM PDT · 16463 days ago · 14 km deep · 31 km away
52. 2.28km NNE of Cabazon, CAMon, Sep 7, 1:32 AM PDT · 16462 days ago · 6 km deep · 27 km away
53. 2.64km SSE of Loma Linda, CATue, Sep 8, 6:20 AM PDT · 16461 days ago · 14 km deep · 23 km away
54. 2.411km NE of Aguanga, CATue, Sep 8, 5:42 PM PDT · 16460 days ago · 4 km deep · 49 km away
55. 1.53km NNE of Claremont, CAWed, Sep 9, 11:44 PM PDT · 16459 days ago · 3 km deep · 67 km away
56. 1.522km N of Yucca Valley, CAThu, Sep 10, 8:36 AM PDT · 16458 days ago · -1 km deep · 69 km away
57. 2.53km NNE of Lytle Creek, CAThu, Sep 10, 2:19 PM PDT · 16458 days ago · 10 km deep · 59 km away
58. 2.814km W of Morongo Valley, CAThu, Sep 10, 2:35 PM PDT · 16458 days ago · 9 km deep · 33 km away
59. 1.63km ENE of Lake Arrowhead, CAFri, Sep 11, 3:19 AM PDT · 16458 days ago · 5 km deep · 42 km away
60. 2.05km NNE of San Bernardino, CAFri, Sep 11, 5:08 AM PDT · 16458 days ago · 0 km deep · 36 km away

The first 60 of 151.

Before

1. 2.14km ESE of Highland, CAThu, Aug 20, 1:08 AM PDT · 16480 days ago · 6 km deep · 26 km away
2. 2.54km SE of Highland, CAWed, Aug 19, 11:39 PM PDT · 16480 days ago · 7 km deep · 26 km away
3. 2.410km ENE of Aguanga, CAWed, Aug 19, 8:18 PM PDT · 16480 days ago · 4 km deep · 52 km away
4. 2.82km SE of Murrieta, CAWed, Aug 19, 5:02 AM PDT · 16481 days ago · 5 km deep · 43 km away
5. 1.94km SSE of Yucca Valley, CATue, Aug 18, 9:58 AM PDT · 16481 days ago · 7 km deep · 60 km away
6. 2.514km N of Borrego Springs, CATue, Aug 18, 9:17 AM PDT · 16481 days ago · 12 km deep · 84 km away
7. 2.94km S of Yucca Valley, CATue, Aug 18, 8:31 AM PDT · 16481 days ago · 2 km deep · 59 km away
8. 2.74km S of Yucca Valley, CATue, Aug 18, 7:53 AM PDT · 16482 days ago · 2 km deep · 60 km away
9. 1.514km N of Borrego Springs, CATue, Aug 18, 2:51 AM PDT · 16482 days ago · 14 km deep · 83 km away
10. 2.110km NE of Cabazon, CAMon, Aug 17, 4:45 PM PDT · 16482 days ago · 12 km deep · 31 km away
11. 1.715km N of Borrego Springs, CAMon, Aug 17, 10:51 AM PDT · 16482 days ago · 3 km deep · 83 km away
12. 1.515km N of Borrego Springs, CAMon, Aug 17, 9:49 AM PDT · 16482 days ago · 3 km deep · 84 km away
13. 1.84km SSE of Yucca Valley, CAMon, Aug 17, 9:35 AM PDT · 16482 days ago · 7 km deep · 60 km away
14. 2.59km S of La Quinta, CAMon, Aug 17, 3:05 AM PDT · 16483 days ago · 3 km deep · 75 km away
15. 1.84km S of Lake Henshaw, CASun, Aug 16, 6:05 PM PDT · 16483 days ago · 17 km deep · 82 km away
16. 1.812km SSE of Anza, CASun, Aug 16, 3:44 PM PDT · 16483 days ago · 9 km deep · 63 km away
17. 1.53km ESE of Highland, CASun, Aug 16, 4:29 AM PDT · 16484 days ago · 4 km deep · 28 km away
18. 2.94km SE of Highland, CASun, Aug 16, 4:23 AM PDT · 16484 days ago · 4 km deep · 26 km away
19. 1.611km WSW of Anza, CASun, Aug 16, 3:59 AM PDT · 16484 days ago · 7 km deep · 50 km away
20. 2.34km ESE of Highland, CASun, Aug 16, 2:19 AM PDT · 16484 days ago · 7 km deep · 27 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci521433. Read Sat, Oct 3, 2026, 2:30 AM UTC.