M1.7 earthquake 2 km SSE of Mammoth Lakes, California

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, Oct 8, 1987, 5:00 AM PDT

UTC

1987-10-08 12:00:56 UTC

Depth

7.0 km (4.4 mi), shallow

Epicenter

37.630° N, 118.962° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.40

Depth from

From location

Station coverage gap

99°

Stations used

12

• Mammoth Lakes, CaliforniaPopulation 7,946. Forecast2 kmSSE
• Clovis, CaliforniaPopulation 104,180. Forecast111 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast403 kmN

After

1. 2.07 km WSW of Mammoth Lakes, CaliforniaThu, Oct 8, 11:12 AM PDT · 14238 days ago · 2 km deep · 8 km away
2. 1.94 km N of Round Valley, CaliforniaThu, Oct 8, 12:10 PM PDT · 14238 days ago · 6 km deep · 38 km away
3. 1.84 km N of Round Valley, CaliforniaThu, Oct 8, 12:25 PM PDT · 14238 days ago · 5 km deep · 38 km away
4. 2.324 km E of Fish Camp, CaliforniaFri, Oct 9, 1:57 AM PDT · 14238 days ago · 14 km deep · 39 km away
5. 1.612 km ESE of Mammoth Lakes, CaliforniaFri, Oct 9, 2:26 AM PDT · 14238 days ago · 6 km deep · 11 km away
6. 1.79 km W of Aspen Springs, CaliforniaFri, Oct 9, 3:30 AM PDT · 14238 days ago · 3 km deep · 15 km away
7. 1.610 km W of Aspen Springs, CaliforniaFri, Oct 9, 5:01 AM PDT · 14237 days ago · 2 km deep · 13 km away
8. 3.324 km E of Fish Camp, CaliforniaFri, Oct 9, 7:09 AM PDT · 14237 days ago · 16 km deep · 39 km away
9. 1.928 km E of Fish Camp, CaliforniaFri, Oct 9, 7:13 AM PDT · 14237 days ago · 4 km deep · 35 km away
10. 1.615 km N of Dixon Lane-Meadow Creek, CaliforniaFri, Oct 9, 11:35 AM PDT · 14237 days ago · 10 km deep · 50 km away
11. 2.218 km NE of Bass Lake, CaliforniaFri, Oct 9, 11:38 AM PDT · 14237 days ago · 4 km deep · 45 km away
12. 1.62 km NNE of Swall Meadows, CaliforniaFri, Oct 9, 3:40 PM PDT · 14237 days ago · 4 km deep · 31 km away
13. 1.710 km WNW of Aspen Springs, CaliforniaFri, Oct 9, 4:22 PM PDT · 14237 days ago · 3 km deep · 13 km away
14. 2.14 km N of Round Valley, CaliforniaFri, Oct 9, 4:54 PM PDT · 14237 days ago · 5 km deep · 38 km away
15. 1.615 km NE of Mesa, CaliforniaFri, Oct 9, 6:23 PM PDT · 14237 days ago · 10 km deep · 47 km away
16. 1.929 km E of Fish Camp, CaliforniaFri, Oct 9, 8:50 PM PDT · 14237 days ago · 4 km deep · 34 km away
17. 2.410 km WSW of Ahwahnee, CaliforniaSat, Oct 10, 1:25 AM PDT · 14237 days ago · 22 km deep · 84 km away
18. 2.014 km W of Aspen Springs, CaliforniaSat, Oct 10, 7:42 AM PDT · 14236 days ago · 4 km deep · 12 km away
19. 1.6California-Nevada border regionSat, Oct 10, 3:20 PM PDT · 14236 days ago · 10 km deep · 18 km away
20. 2.0California-Nevada border regionSat, Oct 10, 5:31 PM PDT · 14236 days ago · 4 km deep · 13 km away
21. 1.85 km SSW of Swall Meadows, CaliforniaSat, Oct 10, 10:54 PM PDT · 14236 days ago · 10 km deep · 32 km away
22. 1.84 km NNW of Round Valley, CaliforniaSun, Oct 11, 1:55 AM PDT · 14236 days ago · 7 km deep · 37 km away
23. 1.82 km SE of Mammoth Lakes, CaliforniaSun, Oct 11, 5:55 AM PDT · 14235 days ago · 5 km deep · 1 km away
24. 1.91 km NNE of Swall Meadows, CaliforniaSun, Oct 11, 12:57 PM PDT · 14235 days ago · 11 km deep · 31 km away
25. 1.612 km WSW of Aspen Springs, CaliforniaSun, Oct 11, 2:24 PM PDT · 14235 days ago · 5 km deep · 18 km away
26. 1.55 km SSW of Aspen Springs, CaliforniaSun, Oct 11, 5:07 PM PDT · 14235 days ago · 3 km deep · 23 km away
27. 2.226 km E of Fish Camp, CaliforniaSun, Oct 11, 7:30 PM PDT · 14235 days ago · 4 km deep · 37 km away
28. 1.920 km SSE of Dyer, NevadaSun, Oct 11, 10:22 PM PDT · 14235 days ago · 4 km deep · 89 km away
29. 1.817 km ENE of Swall Meadows, CaliforniaMon, Oct 12, 7:40 AM PDT · 14234 days ago · 5 km deep · 44 km away
30. 1.610 km ESE of Mammoth Lakes, CaliforniaMon, Oct 12, 9:47 AM PDT · 14234 days ago · 8 km deep · 9 km away
31. 1.6California-Nevada border regionMon, Oct 12, 10:16 AM PDT · 14234 days ago · 6 km deep · 18 km away
32. 1.76 km SW of Aspen Springs, CaliforniaMon, Oct 12, 1:20 PM PDT · 14234 days ago · 7 km deep · 21 km away
33. 1.66 km SW of Aspen Springs, CAMon, Oct 12, 1:27 PM PDT · 14234 days ago · 7 km deep · 21 km away
34. 1.88 km ENE of June Lake, CaliforniaTue, Oct 13, 7:42 PM PDT · 14233 days ago · 1 km deep · 21 km away
35. 1.512 km SW of Aspen Springs, CaliforniaTue, Oct 13, 11:22 PM PDT · 14233 days ago · 2 km deep · 20 km away
36. 2.21 km NW of Mesa, CaliforniaTue, Oct 13, 11:27 PM PDT · 14233 days ago · 5 km deep · 42 km away
37. 2.517 km NE of Mesa, CaliforniaWed, Oct 14, 2:12 AM PDT · 14233 days ago · 5 km deep · 48 km away
38. 1.83 km WNW of Swall Meadows, CaliforniaWed, Oct 14, 7:08 AM PDT · 14232 days ago · 4 km deep · 28 km away
39. 3.024 km E of Fish Camp, CaliforniaWed, Oct 14, 1:58 PM PDT · 14232 days ago · 14 km deep · 39 km away
40. 3.524 km E of Fish Camp, CaliforniaWed, Oct 14, 4:00 PM PDT · 14232 days ago · 15 km deep · 39 km away
41. 1.927 km NE of Bass Lake, CaliforniaWed, Oct 14, 4:09 PM PDT · 14232 days ago · 4 km deep · 36 km away
42. 2.229 km E of Fish Camp, CaliforniaWed, Oct 14, 4:10 PM PDT · 14232 days ago · 4 km deep · 33 km away
43. 2.424 km E of Fish Camp, CaliforniaWed, Oct 14, 5:13 PM PDT · 14232 days ago · 16 km deep · 39 km away
44. 2.924 km E of Fish Camp, CaliforniaWed, Oct 14, 5:40 PM PDT · 14232 days ago · 16 km deep · 39 km away
45. 2.523 km E of Fish Camp, CaliforniaWed, Oct 14, 6:07 PM PDT · 14232 days ago · 4 km deep · 39 km away
46. 1.824 km E of Fish Camp, CaliforniaWed, Oct 14, 6:49 PM PDT · 14232 days ago · 4 km deep · 39 km away
47. 3.024 km E of Fish Camp, CaliforniaWed, Oct 14, 9:14 PM PDT · 14232 days ago · 17 km deep · 39 km away
48. 1.825 km E of Fish Camp, CaliforniaWed, Oct 14, 9:25 PM PDT · 14232 days ago · 8 km deep · 38 km away
49. 2.026 km E of Fish Camp, CaliforniaWed, Oct 14, 9:53 PM PDT · 14232 days ago · 12 km deep · 36 km away
50. 2.329 km E of Fish Camp, CaliforniaWed, Oct 14, 10:06 PM PDT · 14232 days ago · 14 km deep · 33 km away
51. 2.09 km WNW of Aspen Springs, CaliforniaWed, Oct 14, 10:17 PM PDT · 14232 days ago · 4 km deep · 14 km away
52. 1.91 km WNW of Mesa, CaliforniaWed, Oct 14, 11:30 PM PDT · 14232 days ago · 5 km deep · 42 km away
53. 2.225 km E of Fish Camp, CaliforniaThu, Oct 15, 1:45 AM PDT · 14232 days ago · 4 km deep · 38 km away
54. 1.913 km S of Bootjack, CaliforniaThu, Oct 15, 4:00 AM PDT · 14231 days ago · 3 km deep · 88 km away
55. 1.95 km N of Round Valley, CaliforniaThu, Oct 15, 6:31 PM PDT · 14231 days ago · 6 km deep · 38 km away
56. 2.214 km N of Dixon Lane-Meadow Creek, CaliforniaThu, Oct 15, 10:28 PM PDT · 14231 days ago · 8 km deep · 50 km away
57. 2.417 km ENE of Swall Meadows, CaliforniaThu, Oct 15, 11:36 PM PDT · 14231 days ago · 7 km deep · 44 km away
58. 1.85 km NNW of Round Valley, CaliforniaFri, Oct 16, 12:53 AM PDT · 14231 days ago · 9 km deep · 36 km away
59. 2.06 km WSW of Mammoth Lakes, CaliforniaFri, Oct 16, 10:45 AM PDT · 14230 days ago · 2 km deep · 7 km away
60. 2.025 km E of Fish Camp, CaliforniaFri, Oct 16, 10:55 AM PDT · 14230 days ago · 9 km deep · 38 km away

The first 60 of 199.

Before

1. 1.73 km SE of Mammoth Lakes, CaliforniaThu, Oct 8, 4:14 AM PDT · 14238 days ago · 3 km deep · 2 km away
2. 1.52 km SSE of Mammoth Lakes, CaliforniaThu, Oct 8, 3:42 AM PDT · 14238 days ago · 4 km deep · 1 km away
3. 1.812 km SE of Mammoth Lakes, CaliforniaWed, Oct 7, 11:32 PM PDT · 14239 days ago · 1 km deep · 11 km away
4. 1.512 km SE of Mammoth Lakes, CaliforniaWed, Oct 7, 11:30 PM PDT · 14239 days ago · 3 km deep · 11 km away
5. 1.718 km NE of Mesa, CaliforniaWed, Oct 7, 8:11 PM PDT · 14239 days ago · 3 km deep · 49 km away
6. 1.813 km WSW of Aspen Springs, CaliforniaWed, Oct 7, 3:08 PM PDT · 14239 days ago · 3 km deep · 14 km away
7. 1.64 km SE of Swall Meadows, CaliforniaWed, Oct 7, 12:49 PM PDT · 14239 days ago · 11 km deep · 36 km away
8. 1.816 km ENE of Swall Meadows, CaliforniaWed, Oct 7, 10:27 AM PDT · 14239 days ago · 10 km deep · 42 km away
9. 2.227 km NW of Benton, CaliforniaTue, Oct 6, 3:22 PM PDT · 14240 days ago · 8 km deep · 46 km away
10. 2.26 km W of Ahwahnee, CaliforniaTue, Oct 6, 1:36 PM PDT · 14240 days ago · 15 km deep · 79 km away
11. 1.64 km N of Round Valley, CaliforniaTue, Oct 6, 12:44 AM PDT · 14241 days ago · 7 km deep · 38 km away
12. 1.712 km NNE of Dixon Lane-Meadow Creek, CaliforniaTue, Oct 6, 12:09 AM PDT · 14241 days ago · 5 km deep · 53 km away
13. 1.62 km SSE of Mammoth Lakes, CaliforniaMon, Oct 5, 10:09 AM PDT · 14241 days ago · 7 km deep · 1 km away
14. 1.67 km ENE of Mammoth Lakes, CaliforniaMon, Oct 5, 6:35 AM PDT · 14241 days ago · 5 km deep · 7 km away
15. 2.61 km SSW of Mesa, CaliforniaSun, Oct 4, 8:56 AM PDT · 14242 days ago · 5 km deep · 44 km away
16. 2.721 km ENE of Swall Meadows, CaliforniaSat, Oct 3, 3:14 PM PDT · 14243 days ago · 4 km deep · 47 km away
17. 1.711 km NNE of Dixon Lane-Meadow Creek, CaliforniaFri, Oct 2, 7:27 PM PDT · 14244 days ago · 5 km deep · 54 km away
18. 2.211 km SE of Mammoth Lakes, CaliforniaFri, Oct 2, 12:12 PM PDT · 14244 days ago · 5 km deep · 10 km away
19. 2.02 km NNW of Mesa, CaliforniaFri, Oct 2, 5:49 AM PDT · 14244 days ago · 9 km deep · 42 km away
20. 1.510 km SW of Aspen Springs, CaliforniaFri, Oct 2, 3:07 AM PDT · 14245 days ago · 6 km deep · 21 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc106926. Read Thu, Oct 1, 2026, 10:10 PM UTC.