M1.8 earthquake 17 km NE of Mesa, California

Magnitude

1.8 (md), micro

Local time

Sun, Sep 20, 1987, 4:32 PM PDT

UTC

1987-09-20 23:32:02 UTC

Depth

5.3 km (3.3 mi), shallow

Epicenter

37.547° N, 118.430° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.18

Depth from

From location

Station coverage gap

61°

Stations used

17

• Dixon Lane-Meadow Creek, CaliforniaPopulation 2,645. Forecast18 kmN
• Sanger, CaliforniaPopulation 24,950. Forecast137 kmNE
• Clovis, CaliforniaPopulation 104,180. Forecast138 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast389 kmN

After

1. 1.6California-Nevada border regionMon, Oct 12, 10:16 AM PDT · 14225 days ago · 6 km deep · 36 km away
2. 1.76 km SW of Aspen Springs, CaliforniaMon, Oct 12, 1:20 PM PDT · 14225 days ago · 7 km deep · 30 km away
3. 1.66 km SW of Aspen Springs, CAMon, Oct 12, 1:27 PM PDT · 14225 days ago · 7 km deep · 30 km away
4. 1.88 km ENE of June Lake, CaliforniaTue, Oct 13, 7:42 PM PDT · 14224 days ago · 1 km deep · 58 km away
5. 1.512 km SW of Aspen Springs, CaliforniaTue, Oct 13, 11:22 PM PDT · 14224 days ago · 2 km deep · 36 km away
6. 2.21 km NW of Mesa, CaliforniaTue, Oct 13, 11:27 PM PDT · 14224 days ago · 5 km deep · 17 km away
7. 2.517 km NE of Mesa, CaliforniaWed, Oct 14, 2:12 AM PDT · 14224 days ago · 5 km deep · 1 km away
8. 1.83 km WNW of Swall Meadows, CaliforniaWed, Oct 14, 7:08 AM PDT · 14223 days ago · 4 km deep · 23 km away
9. 3.024 km E of Fish Camp, CaliforniaWed, Oct 14, 1:58 PM PDT · 14223 days ago · 14 km deep · 83 km away
10. 3.524 km E of Fish Camp, CaliforniaWed, Oct 14, 4:00 PM PDT · 14223 days ago · 15 km deep · 83 km away
11. 1.927 km NE of Bass Lake, CaliforniaWed, Oct 14, 4:09 PM PDT · 14223 days ago · 4 km deep · 80 km away
12. 2.229 km E of Fish Camp, CaliforniaWed, Oct 14, 4:10 PM PDT · 14223 days ago · 4 km deep · 77 km away
13. 2.424 km E of Fish Camp, CaliforniaWed, Oct 14, 5:13 PM PDT · 14223 days ago · 16 km deep · 82 km away
14. 2.924 km E of Fish Camp, CaliforniaWed, Oct 14, 5:40 PM PDT · 14223 days ago · 16 km deep · 83 km away
15. 2.523 km E of Fish Camp, CaliforniaWed, Oct 14, 6:07 PM PDT · 14223 days ago · 4 km deep · 83 km away
16. 1.824 km E of Fish Camp, CaliforniaWed, Oct 14, 6:49 PM PDT · 14223 days ago · 4 km deep · 82 km away
17. 3.024 km E of Fish Camp, CaliforniaWed, Oct 14, 9:14 PM PDT · 14223 days ago · 17 km deep · 83 km away
18. 1.825 km E of Fish Camp, CaliforniaWed, Oct 14, 9:25 PM PDT · 14223 days ago · 8 km deep · 82 km away
19. 2.026 km E of Fish Camp, CaliforniaWed, Oct 14, 9:53 PM PDT · 14223 days ago · 12 km deep · 80 km away
20. 2.329 km E of Fish Camp, CaliforniaWed, Oct 14, 10:06 PM PDT · 14223 days ago · 14 km deep · 77 km away
21. 2.09 km WNW of Aspen Springs, CaliforniaWed, Oct 14, 10:17 PM PDT · 14223 days ago · 4 km deep · 34 km away
22. 1.91 km WNW of Mesa, CaliforniaWed, Oct 14, 11:30 PM PDT · 14223 days ago · 5 km deep · 18 km away
23. 2.225 km E of Fish Camp, CaliforniaThu, Oct 15, 1:45 AM PDT · 14223 days ago · 4 km deep · 82 km away
24. 1.95 km N of Round Valley, CaliforniaThu, Oct 15, 6:31 PM PDT · 14222 days ago · 6 km deep · 17 km away
25. 2.214 km N of Dixon Lane-Meadow Creek, CaliforniaThu, Oct 15, 10:28 PM PDT · 14222 days ago · 8 km deep · 3 km away
26. 2.417 km ENE of Swall Meadows, CaliforniaThu, Oct 15, 11:36 PM PDT · 14222 days ago · 7 km deep · 5 km away
27. 1.85 km NNW of Round Valley, CaliforniaFri, Oct 16, 12:53 AM PDT · 14222 days ago · 9 km deep · 18 km away
28. 2.06 km WSW of Mammoth Lakes, CaliforniaFri, Oct 16, 10:45 AM PDT · 14221 days ago · 2 km deep · 55 km away
29. 2.025 km E of Fish Camp, CaliforniaFri, Oct 16, 10:55 AM PDT · 14221 days ago · 9 km deep · 82 km away
30. 1.514 km WSW of Aspen Springs, CaliforniaSat, Oct 17, 10:53 AM PDT · 14220 days ago · 4 km deep · 39 km away
31. 1.914 km WSW of Aspen Springs, CaliforniaSat, Oct 17, 10:54 AM PDT · 14220 days ago · 5 km deep · 39 km away
32. 1.69 km ESE of Mammoth Lakes, CaliforniaSat, Oct 17, 2:26 PM PDT · 14220 days ago · 1 km deep · 40 km away
33. 1.58 km NNE of Dixon Lane-Meadow Creek, CaliforniaSat, Oct 17, 3:08 PM PDT · 14220 days ago · 7 km deep · 12 km away
34. 2.026 km NE of Bass Lake, CaliforniaSat, Oct 17, 6:15 PM PDT · 14220 days ago · 6 km deep · 80 km away
35. 1.6California-Nevada border regionSat, Oct 17, 7:53 PM PDT · 14220 days ago · 3 km deep · 38 km away
36. 1.810 km NNW of Benton, CaliforniaSat, Oct 17, 11:40 PM PDT · 14220 days ago · -1 km deep · 40 km away
37. 1.69 km W of Aspen Springs, CaliforniaSun, Oct 18, 12:09 AM PDT · 14220 days ago · 3 km deep · 35 km away
38. 1.528 km ENE of Lee Vining, CaliforniaSun, Oct 18, 8:44 AM PDT · 14219 days ago · 7 km deep · 64 km away
39. 1.925 km E of Fish Camp, CaliforniaSun, Oct 18, 8:45 AM PDT · 14219 days ago · 10 km deep · 82 km away
40. 1.930 km E of Fish Camp, CaliforniaSun, Oct 18, 9:13 AM PDT · 14219 days ago · 17 km deep · 77 km away
41. 1.826 km NE of Bass Lake, CaliforniaSun, Oct 18, 11:35 AM PDT · 14219 days ago · 7 km deep · 81 km away
42. 2.128 km E of Fish Camp, CaliforniaSun, Oct 18, 11:51 AM PDT · 14219 days ago · 4 km deep · 79 km away
43. 1.812 km SE of Mammoth Lakes, CaliforniaSun, Oct 18, 3:59 PM PDT · 14219 days ago · 1 km deep · 38 km away
44. 1.53 km SSW of Mesa, CaliforniaSun, Oct 18, 8:11 PM PDT · 14219 days ago · 13 km deep · 20 km away
45. 2.224 km E of Fish Camp, CaliforniaSun, Oct 18, 11:15 PM PDT · 14219 days ago · 15 km deep · 83 km away
46. 2.230 km E of Fish Camp, CaliforniaMon, Oct 19, 5:34 AM PDT · 14218 days ago · 17 km deep · 76 km away
47. 1.65 km ESE of Mammoth Lakes, CaliforniaMon, Oct 19, 2:39 PM PDT · 14218 days ago · 6 km deep · 44 km away
48. 1.59 km NNE of Dixon Lane-Meadow Creek, CaliforniaMon, Oct 19, 8:57 PM PDT · 14218 days ago · 7 km deep · 11 km away
49. 1.62 km WNW of Round Valley, CaliforniaTue, Oct 20, 5:30 AM PDT · 14217 days ago · 9 km deep · 21 km away
50. 1.510 km SW of Aspen Springs, CaliforniaTue, Oct 20, 6:33 AM PDT · 14217 days ago · 5 km deep · 33 km away
51. 2.119 km ENE of Swall Meadows, CaliforniaTue, Oct 20, 9:29 AM PDT · 14217 days ago · 6 km deep · 3 km away
52. 2.218 km NE of Mesa, CaliforniaTue, Oct 20, 10:23 AM PDT · 14217 days ago · 5 km deep · 1 km away
53. 1.811 km NNW of Benton, CaliforniaTue, Oct 20, 3:24 PM PDT · 14217 days ago · 10 km deep · 42 km away
54. 1.611 km N of Benton, CaliforniaTue, Oct 20, 5:03 PM PDT · 14217 days ago · 6 km deep · 42 km away
55. 1.811 km N of Benton, CaliforniaTue, Oct 20, 6:30 PM PDT · 14217 days ago · 2 km deep · 42 km away
56. 1.811 km NNW of Benton, CaliforniaTue, Oct 20, 8:22 PM PDT · 14217 days ago · 3 km deep · 42 km away
57. 1.617 km NNE of Mesa, CaliforniaWed, Oct 21, 1:15 AM PDT · 14217 days ago · 8 km deep · 2 km away
58. 2.118 km ENE of Swall Meadows, CaliforniaWed, Oct 21, 9:35 AM PDT · 14216 days ago · 7 km deep · 4 km away
59. 2.017 km ENE of Swall Meadows, CaliforniaThu, Oct 22, 2:13 AM PDT · 14216 days ago · 9 km deep · 5 km away
60. 1.617 km ENE of Swall Meadows, CaliforniaThu, Oct 22, 2:52 AM PDT · 14216 days ago · 9 km deep · 5 km away

The first 60 of 199.

From the USGS Earthquake Hazards Program and its partner networks, event nc106089. Read Tue, Sep 22, 2026, 11:31 PM UTC.