M1.8 earthquake 20 km NNE of Mesa, California

Magnitude

1.8 (md), micro

Local time

Sun, Jul 20, 1986, 4:31 PM PDT

UTC

1986-07-20 23:31:53 UTC

Depth

6.2 km (3.8 mi), shallow

Epicenter

37.581° N, 118.423° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.22

Depth from

From location

Station coverage gap

224°, poorly surrounded by stations

Stations used

20

• Dixon Lane-Meadow Creek, CaliforniaPopulation 2,645. Forecast22 kmN
• Sanger, CaliforniaPopulation 24,950. Forecast140 kmNE
• Clovis, CaliforniaPopulation 104,180. Forecast141 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast393 kmN

After

1. 2.220 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 4:42 PM PDT · 14681 days ago · 3 km deep · 1 km away
2. 2.115 km NNE of Mesa, CaliforniaSun, Jul 20, 4:45 PM PDT · 14681 days ago · 7 km deep · 6 km away
3. 1.616 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 4:53 PM PDT · 14681 days ago · 7 km deep · 5 km away
4. 2.815 km NNE of Mesa, CaliforniaSun, Jul 20, 4:58 PM PDT · 14681 days ago · 7 km deep · 6 km away
5. 2.615 km NNE of Mesa, CaliforniaSun, Jul 20, 4:59 PM PDT · 14681 days ago · 7 km deep · 6 km away
6. 1.820 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 5:01 PM PDT · 14681 days ago · 6 km deep · 1 km away
7. 2.415 km NNE of Mesa, CaliforniaSun, Jul 20, 5:05 PM PDT · 14681 days ago · 7 km deep · 6 km away
8. 3.416 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 5:08 PM PDT · 14681 days ago · 7 km deep · 5 km away
9. 2.414 km NNE of Mesa, CaliforniaSun, Jul 20, 5:09 PM PDT · 14681 days ago · 4 km deep · 6 km away
10. 2.215 km NNE of Mesa, CaliforniaSun, Jul 20, 5:10 PM PDT · 14681 days ago · 6 km deep · 6 km away
11. 2.019 km NE of Mesa, CaliforniaSun, Jul 20, 5:18 PM PDT · 14681 days ago · 9 km deep · 2 km away
12. 2.018 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 5:21 PM PDT · 14681 days ago · 9 km deep · 3 km away
13. 2.015 km NNE of Mesa, CaliforniaSun, Jul 20, 5:25 PM PDT · 14681 days ago · 7 km deep · 6 km away
14. 1.816 km NNE of Mesa, CaliforniaSun, Jul 20, 5:32 PM PDT · 14681 days ago · 7 km deep · 4 km away
15. 3.314 km NNE of Mesa, CaliforniaSun, Jul 20, 5:36 PM PDT · 14681 days ago · 7 km deep · 6 km away
16. 1.515 km NNE of Mesa, CaliforniaSun, Jul 20, 5:38 PM PDT · 14681 days ago · 6 km deep · 5 km away
17. 1.716 km NNE of Mesa, CaliforniaSun, Jul 20, 5:39 PM PDT · 14681 days ago · 9 km deep · 4 km away
18. 1.52 km ESE of Mammoth Lakes, CaliforniaSun, Jul 20, 5:40 PM PDT · 14681 days ago · 5 km deep · 46 km away
19. 2.015 km NNE of Mesa, CaliforniaSun, Jul 20, 5:41 PM PDT · 14681 days ago · 8 km deep · 6 km away
20. 1.615 km NE of Mesa, CaliforniaSun, Jul 20, 5:47 PM PDT · 14681 days ago · 3 km deep · 6 km away
21. 2.519 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 5:51 PM PDT · 14681 days ago · 6 km deep · 1 km away
22. 2.415 km NNE of Mesa, CaliforniaSun, Jul 20, 5:55 PM PDT · 14681 days ago · 7 km deep · 6 km away
23. 2.115 km NNE of Mesa, CaliforniaSun, Jul 20, 5:58 PM PDT · 14681 days ago · 6 km deep · 5 km away
24. 3.016 km NE of Mesa, CaliforniaSun, Jul 20, 6:08 PM PDT · 14681 days ago · 7 km deep · 5 km away
25. 1.714 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 6:09 PM PDT · 14681 days ago · 6 km deep · 7 km away
26. 1.717 km NNE of Mesa, CaliforniaSun, Jul 20, 6:20 PM PDT · 14681 days ago · 6 km deep · 4 km away
27. 1.621 km NNE of Mesa, CaliforniaSun, Jul 20, 6:34 PM PDT · 14681 days ago · 6 km deep · 1 km away
28. 1.614 km NNE of Mesa, CaliforniaSun, Jul 20, 6:37 PM PDT · 14681 days ago · 5 km deep · 6 km away
29. 3.417 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 6:37 PM PDT · 14681 days ago · 7 km deep · 4 km away
30. 2.117 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 6:49 PM PDT · 14681 days ago · 7 km deep · 3 km away
31. 1.615 km NNE of Mesa, CaliforniaSun, Jul 20, 6:50 PM PDT · 14681 days ago · 5 km deep · 6 km away
32. 3.015 km NNE of Mesa, CaliforniaSun, Jul 20, 6:54 PM PDT · 14681 days ago · 8 km deep · 6 km away
33. 2.314 km NNE of Mesa, CaliforniaSun, Jul 20, 6:55 PM PDT · 14681 days ago · 4 km deep · 6 km away
34. 2.321 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 7:13 PM PDT · 14681 days ago · 7 km deep · 1 km away
35. 2.615 km NNE of Mesa, CaliforniaSun, Jul 20, 7:16 PM PDT · 14681 days ago · 8 km deep · 6 km away
36. 3.716 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 7:27 PM PDT · 14681 days ago · 7 km deep · 5 km away
37. 2.120 km NNE of Mesa, CaliforniaSun, Jul 20, 7:41 PM PDT · 14681 days ago · 5 km deep · 1 km away
38. 2.419 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 7:46 PM PDT · 14681 days ago · 6 km deep · 2 km away
39. 2.415 km NNE of Mesa, CaliforniaSun, Jul 20, 7:56 PM PDT · 14681 days ago · 5 km deep · 6 km away
40. 2.914 km NNE of Mesa, CaliforniaSun, Jul 20, 8:01 PM PDT · 14681 days ago · 6 km deep · 6 km away
41. 1.819 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 8:06 PM PDT · 14681 days ago · 6 km deep · 2 km away
42. 4.416 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 8:12 PM PDT · 14681 days ago · 7 km deep · 5 km away
43. 1.915 km NE of Mesa, CaliforniaSun, Jul 20, 8:21 PM PDT · 14681 days ago · 3 km deep · 5 km away
44. 2.616 km NNE of Mesa, CaliforniaSun, Jul 20, 8:23 PM PDT · 14681 days ago · 6 km deep · 5 km away
45. 2.716 km NNE of Mesa, CaliforniaSun, Jul 20, 8:25 PM PDT · 14681 days ago · 7 km deep · 5 km away
46. 1.715 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 8:31 PM PDT · 14681 days ago · 7 km deep · 6 km away
47. 1.916 km E of Sunny Slopes, CaliforniaSun, Jul 20, 8:54 PM PDT · 14681 days ago · 4 km deep · 7 km away
48. 1.915 km NNE of Mesa, CaliforniaSun, Jul 20, 8:59 PM PDT · 14681 days ago · 8 km deep · 5 km away
49. 1.821 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 9:03 PM PDT · 14681 days ago · 6 km deep · 1 km away
50. 2.515 km NNE of Mesa, CaliforniaSun, Jul 20, 9:05 PM PDT · 14681 days ago · 7 km deep · 6 km away
51. 1.512 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 9:06 PM PDT · 14681 days ago · 2 km deep · 9 km away
52. 1.616 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 9:07 PM PDT · 14681 days ago · 7 km deep · 5 km away
53. 1.64 km E of Mammoth Lakes, CaliforniaSun, Jul 20, 9:14 PM PDT · 14681 days ago · 5 km deep · 45 km away
54. 1.717 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 9:17 PM PDT · 14681 days ago · 7 km deep · 4 km away
55. 1.514 km NNE of Mesa, CaliforniaSun, Jul 20, 9:33 PM PDT · 14681 days ago · 4 km deep · 7 km away
56. 1.920 km NNE of Mesa, CaliforniaSun, Jul 20, 9:41 PM PDT · 14681 days ago · 6 km deep · 0 km away
57. 2.515 km NNE of Mesa, CaliforniaSun, Jul 20, 10:19 PM PDT · 14681 days ago · 6 km deep · 6 km away
58. 2.015 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 10:22 PM PDT · 14681 days ago · 5 km deep · 5 km away
59. 2.114 km NNE of Mesa, CaliforniaSun, Jul 20, 10:27 PM PDT · 14681 days ago · 5 km deep · 6 km away
60. 2.315 km NNE of Mesa, CASun, Jul 20, 10:28 PM PDT · 14681 days ago · 6 km deep · 6 km away

The first 60 of at least 200.

Before

1. 2.323 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 4:29 PM PDT · 14681 days ago · 3 km deep · 4 km away
2. 1.715 km NNE of Mesa, CaliforniaSun, Jul 20, 4:22 PM PDT · 14681 days ago · 5 km deep · 5 km away
3. 1.615 km NNE of Mesa, CaliforniaSun, Jul 20, 4:20 PM PDT · 14681 days ago · 5 km deep · 6 km away
4. 1.818 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 4:13 PM PDT · 14681 days ago · 10 km deep · 3 km away
5. 1.721 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 3:51 PM PDT · 14681 days ago · 7 km deep · 1 km away
6. 1.516 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 3:40 PM PDT · 14681 days ago · 3 km deep · 5 km away
7. 1.620 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 3:34 PM PDT · 14681 days ago · 6 km deep · 2 km away
8. 1.515 km NNE of Mesa, CaliforniaSun, Jul 20, 3:33 PM PDT · 14681 days ago · 7 km deep · 6 km away
9. 1.615 km NNE of Mesa, CaliforniaSun, Jul 20, 3:28 PM PDT · 14681 days ago · 4 km deep · 6 km away
10. 2.215 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 3:22 PM PDT · 14681 days ago · 6 km deep · 6 km away
11. 1.619 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 3:20 PM PDT · 14681 days ago · 7 km deep · 2 km away
12. 1.720 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 3:17 PM PDT · 14681 days ago · 2 km deep · 2 km away
13. 1.716 km NNE of Mesa, CaliforniaSun, Jul 20, 3:07 PM PDT · 14681 days ago · 6 km deep · 5 km away
14. 1.616 km NNE of Mesa, CaliforniaSun, Jul 20, 3:04 PM PDT · 14681 days ago · 6 km deep · 5 km away
15. 2.019 km NE of Mesa, CaliforniaSun, Jul 20, 2:55 PM PDT · 14681 days ago · 4 km deep · 2 km away
16. 1.721 km ENE of Swall Meadows, CaliforniaSun, Jul 20, 2:53 PM PDT · 14681 days ago · 5 km deep · 1 km away
17. 1.815 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 20, 2:46 PM PDT · 14681 days ago · 7 km deep · 6 km away
18. 2.515 km NE of Mesa, CaliforniaSun, Jul 20, 2:43 PM PDT · 14681 days ago · 4 km deep · 6 km away
19. 3.315 km NE of Mesa, CaliforniaSun, Jul 20, 2:41 PM PDT · 14681 days ago · 3 km deep · 6 km away
20. 2.316 km NNE of Mesa, CaliforniaSun, Jul 20, 2:40 PM PDT · 14681 days ago · 7 km deep · 4 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc98231. Read Tue, Sep 29, 2026, 11:29 PM UTC.