M1.7 earthquake 9km SE of Big Bear City, CA

Magnitude

1.7 (mc), micro

Local time

Wed, Oct 21, 1981, 9:21 PM PDT

UTC

1981-10-22 04:21:40 UTC

Depth

7.9 km (4.9 mi), shallow

Epicenter

34.198° N, 116.789° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 1.1 km in depth

Depth from

From location

Station coverage gap

38°

Stations used

44

• Big Bear City, CaliforniaPopulation 12,304. Forecast9 kmSE
• San Bernardino, CaliforniaPopulation 216,108. Forecast47 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast135 kmE

After

1. 1.64km WNW of Lake Arrowhead, CAThu, Oct 22, 10:52 AM PDT · 16406 days ago · 3 km deep · 41 km away
2. 1.730km SE of Barstow, CAThu, Oct 22, 12:43 PM PDT · 16406 days ago · -1 km deep · 57 km away
3. 2.56km SSW of Redlands, CAThu, Oct 22, 8:50 PM PDT · 16405 days ago · 12 km deep · 44 km away
4. 1.70km WNW of Muscoy, CAThu, Oct 22, 10:46 PM PDT · 16405 days ago · 2 km deep · 52 km away
5. 1.54km ENE of Wrightwood, CAFri, Oct 23, 8:18 AM PDT · 16405 days ago · 8 km deep · 77 km away
6. 2.016km E of Desert Hot Springs, CAFri, Oct 23, 10:34 AM PDT · 16405 days ago · -1 km deep · 50 km away
7. 1.78km NNE of Cabazon, CAFri, Oct 23, 3:40 PM PDT · 16404 days ago · 16 km deep · 25 km away
8. 2.122km ESE of Anza, CASat, Oct 24, 12:47 PM PDT · 16404 days ago · 6 km deep · 87 km away
9. 1.57km SSW of Lytle Creek, CASat, Oct 24, 11:22 PM PDT · 16403 days ago · 5 km deep · 69 km away
10. 2.211km NNE of Aguanga, CASun, Oct 25, 2:47 PM PST · 16402 days ago · 5 km deep · 74 km away
11. 2.014km NE of Thousand Palms, CATue, Oct 27, 9:34 AM PST · 16401 days ago · 6 km deep · 58 km away
12. 1.74km SE of Barstow, CATue, Oct 27, 2:06 PM PST · 16400 days ago · 8 km deep · 77 km away
13. 1.523km ESE of Anza, CATue, Oct 27, 6:59 PM PST · 16400 days ago · 10 km deep · 86 km away
14. 1.72km ESE of Loma Linda, CAWed, Oct 28, 2:45 AM PST · 16400 days ago · 17 km deep · 45 km away
15. 1.618km NNE of Big Bear City, CAWed, Oct 28, 4:24 AM PST · 16400 days ago · 3 km deep · 23 km away
16. 1.610km ENE of Aguanga, CAThu, Oct 29, 2:47 AM PST · 16399 days ago · 4 km deep · 78 km away
17. 1.912km SE of Anza, CAThu, Oct 29, 6:03 AM PST · 16399 days ago · 4 km deep · 83 km away
18. 1.621km N of Yucca Valley, CAFri, Oct 30, 8:11 AM PST · 16398 days ago · 0 km deep · 31 km away
19. 1.78km E of Barstow, CAFri, Oct 30, 7:36 PM PST · 16397 days ago · 4 km deep · 79 km away
20. 2.24km SE of Rancho Cucamonga, CASat, Oct 31, 12:01 AM PST · 16397 days ago · 12 km deep · 71 km away
21. 2.69km ENE of Aguanga, CASat, Oct 31, 11:51 AM PST · 16397 days ago · 4 km deep · 80 km away
22. 1.99km ENE of Aguanga, CASat, Oct 31, 2:22 PM PST · 16396 days ago · 4 km deep · 80 km away
23. 2.820km NW of Barstow, CASun, Nov 1, 9:50 PM PST · 16395 days ago · 6 km deep · 97 km away
24. 1.75km N of Big Bear City, CAMon, Nov 2, 10:06 AM PST · 16395 days ago · 0 km deep · 13 km away
25. 1.88km NNE of San Jacinto, CATue, Nov 3, 5:09 AM PST · 16394 days ago · 12 km deep · 41 km away
26. 1.510km WSW of Anza, CATue, Nov 3, 6:10 AM PST · 16394 days ago · 4 km deep · 76 km away
27. 1.68km NNW of Big Bear City, CAFri, Nov 6, 7:49 AM PST · 16391 days ago · 9 km deep · 16 km away
28. 1.522km N of Yucca Valley, CAFri, Nov 6, 2:20 PM PST · 16390 days ago · 3 km deep · 33 km away
29. 1.622km N of Yucca Valley, CASat, Nov 7, 4:05 PM PST · 16389 days ago · 0 km deep · 32 km away
30. 1.712km N of Banning, CASat, Nov 7, 6:40 PM PST · 16389 days ago · 15 km deep · 20 km away
31. 1.615km N of Borrego Springs, CAMon, Nov 9, 3:18 PM PST · 16387 days ago · 2 km deep · 98 km away
32. 1.76km S of Lake Arrowhead, CATue, Nov 10, 8:49 PM PST · 16386 days ago · 1 km deep · 36 km away
33. 2.77km NNW of Fontana, CAThu, Nov 12, 3:20 AM PST · 16385 days ago · 6 km deep · 64 km away
34. 1.724km NNW of Borrego Springs, CAFri, Nov 13, 3:11 AM PST · 16384 days ago · 9 km deep · 88 km away
35. 1.65km ENE of Joshua Tree, CAFri, Nov 13, 5:58 AM PST · 16384 days ago · -1 km deep · 49 km away
36. 2.37km ENE of Joshua Tree, CAFri, Nov 13, 8:45 AM PST · 16384 days ago · -1 km deep · 50 km away
37. 2.014km SE of Anza, CASat, Nov 14, 12:58 AM PST · 16383 days ago · 10 km deep · 84 km away
38. 1.65km ESE of Temecula, CAMon, Nov 16, 7:06 AM PST · 16381 days ago · 6 km deep · 86 km away
39. 1.69km NE of Lake Arrowhead, CAMon, Nov 16, 10:42 AM PST · 16381 days ago · 3 km deep · 34 km away
40. 2.115km SSE of Anza, CAMon, Nov 16, 1:59 PM PST · 16380 days ago · 12 km deep · 86 km away
41. 2.312km N of Foothill Ranch, CATue, Nov 17, 11:29 AM PST · 16380 days ago · 1 km deep · 92 km away
42. 1.511km SW of Anza, CATue, Nov 17, 12:04 PM PST · 16380 days ago · 3 km deep · 78 km away
43. 1.85km SE of Temecula, CATue, Nov 17, 10:54 PM PST · 16379 days ago · 7 km deep · 87 km away
44. 1.95km SE of Temecula, CAWed, Nov 18, 1:08 AM PST · 16379 days ago · 7 km deep · 87 km away
45. 1.518km ESE of Anza, CAThu, Nov 19, 1:19 AM PST · 16378 days ago · 9 km deep · 84 km away
46. 1.66km SE of Temecula, CAThu, Nov 19, 10:31 AM PST · 16378 days ago · 8 km deep · 87 km away
47. 2.14km S of Loma Linda, CAThu, Nov 19, 9:37 PM PST · 16377 days ago · 11 km deep · 49 km away
48. 1.72km NNE of Loma Linda, CAFri, Nov 20, 11:59 AM PST · 16377 days ago · 14 km deep · 46 km away
49. 2.37km NNE of Rancho Cucamonga, CASat, Nov 21, 12:38 AM PST · 16376 days ago · 5 km deep · 71 km away
50. 2.57km SSE of Banning, CASat, Nov 21, 9:48 AM PST · 16376 days ago · 12 km deep · 38 km away
51. 1.810km SW of Anza, CASun, Nov 22, 5:56 PM PST · 16374 days ago · 8 km deep · 78 km away
52. 1.813km SSE of Valle Vista, CAMon, Nov 23, 12:27 AM PST · 16374 days ago · 15 km deep · 62 km away
53. 2.111km N of Banning, CAMon, Nov 23, 2:42 PM PST · 16373 days ago · 10 km deep · 21 km away
54. 3.336km E of Barstow, CATue, Nov 24, 1:20 AM PST · 16373 days ago · 11 km deep · 76 km away
55. 1.734km E of Barstow, CATue, Nov 24, 7:10 AM PST · 16373 days ago · 1 km deep · 75 km away
56. 2.034km ENE of Big Bear City, CATue, Nov 24, 7:42 AM PST · 16373 days ago · 2 km deep · 34 km away
57. 2.034km E of Barstow, CATue, Nov 24, 8:15 AM PST · 16373 days ago · 5 km deep · 74 km away
58. 1.85km N of Banning, CATue, Nov 24, 8:54 AM PST · 16373 days ago · 16 km deep · 27 km away
59. 1.714km S of Twentynine Palms, CATue, Nov 24, 3:40 PM PST · 16372 days ago · 2 km deep · 67 km away
60. 2.635km E of Barstow, CATue, Nov 24, 10:28 PM PST · 16372 days ago · 5 km deep · 74 km away

The first 60 of 99.

Before

1. 1.89km SE of Valle Vista, CAWed, Oct 21, 9:44 AM PDT · 16407 days ago · 16 km deep · 55 km away
2. 3.310km NE of Aguanga, CATue, Oct 20, 10:37 PM PDT · 16407 days ago · 6 km deep · 78 km away
3. 2.221km ESE of Anza, CATue, Oct 20, 10:23 AM PDT · 16408 days ago · 11 km deep · 86 km away
4. 1.99km ENE of Aguanga, CATue, Oct 20, 7:58 AM PDT · 16408 days ago · 4 km deep · 79 km away
5. 3.021km ESE of Anza, CATue, Oct 20, 5:40 AM PDT · 16408 days ago · 9 km deep · 82 km away
6. 2.513km N of Claremont, CAMon, Oct 19, 8:17 PM PDT · 16408 days ago · 6 km deep · 86 km away
7. 1.624km N of Yucca Valley, CAMon, Oct 19, 3:16 PM PDT · 16408 days ago · 1 km deep · 34 km away
8. 3.024km N of Yucca Valley, CAMon, Oct 19, 2:43 PM PDT · 16408 days ago · 1 km deep · 35 km away
9. 2.317km NW of Yucca Valley, CAMon, Oct 19, 9:04 AM PDT · 16409 days ago · 8 km deep · 20 km away
10. 1.69km SW of Idyllwild, CAMon, Oct 19, 4:23 AM PDT · 16409 days ago · 13 km deep · 56 km away
11. 1.940km SSE of Fort Irwin, CASun, Oct 18, 9:23 PM PDT · 16409 days ago · 0 km deep · 83 km away
12. 2.013km SE of Anza, CASun, Oct 18, 8:10 PM PDT · 16409 days ago · 7 km deep · 82 km away
13. 2.29km ENE of Aguanga, CASun, Oct 18, 6:58 PM PDT · 16409 days ago · 2 km deep · 80 km away
14. 1.639km SSE of Fort Irwin, CASun, Oct 18, 10:15 AM PDT · 16410 days ago · 5 km deep · 84 km away
15. 1.611km SW of Anza, CASat, Oct 17, 6:16 PM PDT · 16410 days ago · 3 km deep · 78 km away
16. 1.73km SSW of San Bernardino, CASat, Oct 17, 6:12 PM PDT · 16410 days ago · 3 km deep · 48 km away
17. 2.33km S of San Bernardino, CASat, Oct 17, 7:29 AM PDT · 16411 days ago · 3 km deep · 48 km away
18. 1.53km S of San Bernardino, CASat, Oct 17, 7:25 AM PDT · 16411 days ago · 3 km deep · 48 km away
19. 1.823km NNW of Joshua Tree, CASat, Oct 17, 6:12 AM PDT · 16411 days ago · -1 km deep · 41 km away
20. 1.64km NNE of Cabazon, CASat, Oct 17, 12:10 AM PDT · 16411 days ago · 16 km deep · 28 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci525936. Read Tue, Sep 22, 2026, 9:11 AM UTC.