M1.7 earthquake 13 km NNE of Mesa, California

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Jul 18, 1987, 11:33 AM PDT

UTC

1987-07-18 18:33:33 UTC

Depth

3.9 km (2.5 mi), shallow

Epicenter

37.520° N, 118.466° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.36

Depth from

From location

Station coverage gap

45°

Stations used

30

• Dixon Lane-Meadow Creek, CaliforniaPopulation 2,645. Forecast16 kmNNW
• Sanger, CaliforniaPopulation 24,950. Forecast132 kmNE
• Clovis, CaliforniaPopulation 104,180. Forecast134 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast386 kmN

After

1. 1.813 km NNE of Mesa, CaliforniaSun, Jul 19, 12:52 AM PDT · 14319 days ago · 4 km deep · 0 km away
2. 1.610 km WNW of Aspen Springs, CaliforniaSun, Jul 19, 4:45 AM PDT · 14319 days ago · 6 km deep · 33 km away
3. 2.016 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 19, 6:52 AM PDT · 14319 days ago · 4 km deep · 5 km away
4. 1.817 km NE of Mesa, CaliforniaSun, Jul 19, 3:59 PM PDT · 14318 days ago · 6 km deep · 4 km away
5. 1.69 km NNE of Dixon Lane-Meadow Creek, CaliforniaSun, Jul 19, 6:22 PM PDT · 14318 days ago · 5 km deep · 12 km away
6. 3.116 km NE of Swall Meadows, CaliforniaSun, Jul 19, 11:06 PM PDT · 14318 days ago · 7 km deep · 8 km away
7. 2.917 km ENE of Sunny Slopes, CaliforniaMon, Jul 20, 7:34 AM PDT · 14318 days ago · 8 km deep · 9 km away
8. 2.827km NNW of Dixon Lane-Meadow Creek, CAMon, Jul 20, 7:35 AM PDT · 14318 days ago · 5 km deep · 12 km away
9. 1.718 km ENE of Swall Meadows, CaliforniaMon, Jul 20, 7:53 AM PDT · 14318 days ago · 6 km deep · 6 km away
10. 2.314 km SW of Aspen Springs, CaliforniaMon, Jul 20, 3:28 PM PDT · 14317 days ago · 7 km deep · 34 km away
11. 1.614 km SW of Aspen Springs, CaliforniaTue, Jul 21, 4:19 AM PDT · 14317 days ago · 8 km deep · 34 km away
12. 2.13 km ESE of Mammoth Lakes, CaliforniaTue, Jul 21, 5:07 AM PDT · 14317 days ago · 0 km deep · 43 km away
13. 2.116 km NE of Swall Meadows, CaliforniaTue, Jul 21, 8:02 AM PDT · 14317 days ago · 7 km deep · 8 km away
14. 1.86 km ESE of June Lake, CaliforniaWed, Jul 22, 1:15 PM PDT · 14315 days ago · -2 km deep · 55 km away
15. 1.713 km SE of Mammoth Lakes, CaliforniaThu, Jul 23, 1:31 AM PDT · 14315 days ago · 5 km deep · 36 km away
16. 1.514 km N of Dixon Lane-Meadow Creek, CaliforniaThu, Jul 23, 5:18 AM PDT · 14315 days ago · 7 km deep · 4 km away
17. 1.614 km N of Dixon Lane-Meadow Creek, CaliforniaThu, Jul 23, 3:31 PM PDT · 14314 days ago · 5 km deep · 4 km away
18. 2.47 km NNE of Dixon Lane-Meadow Creek, CaliforniaFri, Jul 24, 4:23 PM PDT · 14313 days ago · 8 km deep · 10 km away
19. 1.517 km ENE of Swall Meadows, CaliforniaSat, Jul 25, 8:45 AM PDT · 14313 days ago · 7 km deep · 7 km away
20. 1.74 km SE of Mammoth Lakes, CaliforniaSat, Jul 25, 1:02 PM PDT · 14312 days ago · 0 km deep · 43 km away
21. 1.84 km SE of Mammoth Lakes, CaliforniaSat, Jul 25, 5:19 PM PDT · 14312 days ago · 1 km deep · 42 km away
22. 1.613 km NNE of Mesa, CaliforniaSat, Jul 25, 10:11 PM PDT · 14312 days ago · 4 km deep · 0 km away
23. 3.45 km N of Mammoth Lakes, CaliforniaSun, Jul 26, 1:36 AM PDT · 14312 days ago · -2 km deep · 49 km away
24. 1.73 km SE of Swall Meadows, CaliforniaSun, Jul 26, 5:34 AM PDT · 14312 days ago · 9 km deep · 14 km away
25. 1.57 km N of Mesa, CaliforniaSun, Jul 26, 5:44 PM PDT · 14311 days ago · 10 km deep · 9 km away
26. 2.018 km ENE of Swall Meadows, CaliforniaMon, Jul 27, 1:07 AM PDT · 14311 days ago · 7 km deep · 8 km away
27. 1.918 km ENE of Swall Meadows, CaliforniaMon, Jul 27, 8:31 AM PDT · 14311 days ago · 6 km deep · 7 km away
28. 2.26 km SSW of Swall Meadows, CaliforniaMon, Jul 27, 2:22 PM PDT · 14310 days ago · 10 km deep · 19 km away
29. 2.26 km SSW of Swall Meadows, CaliforniaMon, Jul 27, 2:24 PM PDT · 14310 days ago · 11 km deep · 19 km away
30. 3.34 km SE of Mina, NevadaTue, Jul 28, 2:05 AM PDT · 14310 days ago · 5 km deep · 100 km away
31. 2.010 km NNE of Dixon Lane-Meadow Creek, CaliforniaTue, Jul 28, 2:32 AM PDT · 14310 days ago · 7 km deep · 8 km away
32. 2.512 km NNE of Dixon Lane-Meadow Creek, CaliforniaTue, Jul 28, 6:01 AM PDT · 14310 days ago · 5 km deep · 10 km away
33. 1.815 km NNE of Mesa, CaliforniaTue, Jul 28, 5:10 PM PDT · 14309 days ago · 6 km deep · 2 km away
34. 2.311 km SW of Aspen Springs, CaliforniaTue, Jul 28, 5:33 PM PDT · 14309 days ago · 7 km deep · 30 km away
35. 4.4California-Nevada border regionTue, Jul 28, 8:52 PM PDT · 14309 days ago · 12 km deep · 98 km away
36. 2.516 km ENE of Swall Meadows, CaliforniaWed, Jul 29, 12:51 AM PDT · 14309 days ago · 8 km deep · 6 km away
37. 1.69 km ESE of Mammoth Lakes, CaliforniaWed, Jul 29, 7:56 AM PDT · 14309 days ago · 2 km deep · 37 km away
38. 1.75 km E of Mesa, CaliforniaWed, Jul 29, 8:44 PM PDT · 14308 days ago · 7 km deep · 12 km away
39. 1.616 km ENE of Sunny Slopes, CaliforniaWed, Jul 29, 10:05 PM PDT · 14308 days ago · 7 km deep · 9 km away
40. 1.77 km ENE of June Lake, CaliforniaThu, Jul 30, 2:23 AM PDT · 14308 days ago · 4 km deep · 57 km away
41. 1.56 km SE of Mammoth Lakes, CaliforniaThu, Jul 30, 1:16 PM PDT · 14307 days ago · 3 km deep · 41 km away
42. 1.78 km SE of Mammoth Lakes, CaliforniaFri, Jul 31, 8:25 AM PDT · 14307 days ago · 4 km deep · 39 km away
43. 3.04 km NNW of Round Valley, CaliforniaFri, Jul 31, 12:42 PM PDT · 14306 days ago · 12 km deep · 13 km away
44. 1.610 km SW of Aspen Springs, CaliforniaFri, Jul 31, 3:57 PM PDT · 14306 days ago · 4 km deep · 29 km away
45. 3.115 km N of Dixon Lane-Meadow Creek, CaliforniaFri, Jul 31, 11:24 PM PDT · 14306 days ago · 6 km deep · 4 km away
46. 1.921 km S of Benton, CaliforniaSat, Aug 1, 2:49 PM PDT · 14305 days ago · 5 km deep · 12 km away
47. 1.915 km WSW of Aspen Springs, CaliforniaSat, Aug 1, 5:45 PM PDT · 14305 days ago · 3 km deep · 36 km away
48. 2.417 km NE of Mesa, CaliforniaSat, Aug 1, 10:04 PM PDT · 14305 days ago · 5 km deep · 4 km away
49. 1.96 km WSW of Aspen Springs, CaliforniaSun, Aug 2, 7:54 AM PDT · 14305 days ago · 4 km deep · 28 km away
50. 2.56 km WSW of Aspen Springs, CaliforniaSun, Aug 2, 7:55 AM PDT · 14305 days ago · 4 km deep · 28 km away
51. 1.514 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Aug 2, 1:42 PM PDT · 14304 days ago · 7 km deep · 3 km away
52. 1.914 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Aug 2, 1:50 PM PDT · 14304 days ago · 7 km deep · 3 km away
53. 1.620 km ENE of Swall Meadows, CaliforniaSun, Aug 2, 2:26 PM PDT · 14304 days ago · 7 km deep · 9 km away
54. 1.99 km W of Aspen Springs, CaliforniaSun, Aug 2, 4:15 PM PDT · 14304 days ago · 5 km deep · 32 km away
55. 1.810 km SW of Aspen Springs, CaliforniaSun, Aug 2, 7:00 PM PDT · 14304 days ago · 11 km deep · 29 km away
56. 1.76 km ESE of Mammoth Lakes, CaliforniaSun, Aug 2, 11:39 PM PDT · 14304 days ago · 3 km deep · 41 km away
57. 1.519 km ENE of Swall Meadows, CaliforniaMon, Aug 3, 12:15 PM PDT · 14303 days ago · 6 km deep · 7 km away
58. 1.610 km NNE of Dixon Lane-Meadow Creek, CaliforniaMon, Aug 3, 10:15 PM PDT · 14303 days ago · 4 km deep · 10 km away
59. 1.716 km NNE of Mesa, CaliforniaTue, Aug 4, 3:23 PM PDT · 14302 days ago · 6 km deep · 4 km away
60. 1.812 km WNW of Aspen Springs, CaliforniaTue, Aug 4, 11:16 PM PDT · 14302 days ago · 7 km deep · 34 km away

The first 60 of at least 199.

Before

1. 2.416 km NE of Swall Meadows, CaliforniaSat, Jul 18, 11:12 AM PDT · 14320 days ago · 7 km deep · 8 km away
2. 1.911 km NNE of Dixon Lane-Meadow Creek, CaliforniaSat, Jul 18, 11:09 AM PDT · 14320 days ago · 5 km deep · 11 km away
3. 1.83 km NNE of Big Pine, CaliforniaSat, Jul 18, 10:44 AM PDT · 14320 days ago · 6 km deep · 40 km away
4. 1.86 km SE of Mammoth Lakes, CaliforniaSat, Jul 18, 7:34 AM PDT · 14320 days ago · 2 km deep · 42 km away
5. 1.62 km S of Aspen Springs, CaliforniaSat, Jul 18, 2:40 AM PDT · 14320 days ago · 2 km deep · 22 km away
6. 1.613 km NNE of Mesa, CaliforniaFri, Jul 17, 11:54 AM PDT · 14321 days ago · 4 km deep · 0 km away
7. 2.013 km NNE of Mesa, CaliforniaFri, Jul 17, 10:58 AM PDT · 14321 days ago · 4 km deep · 0 km away
8. 1.816 km NE of Mesa, CaliforniaFri, Jul 17, 9:03 AM PDT · 14321 days ago · 6 km deep · 4 km away
9. 1.617 km NNE of Mesa, CaliforniaThu, Jul 16, 11:47 PM PDT · 14321 days ago · 4 km deep · 5 km away
10. 1.716 km NE of Mesa, CaliforniaThu, Jul 16, 7:14 PM PDT · 14321 days ago · 5 km deep · 4 km away
11. 1.618 km ENE of Swall Meadows, CaliforniaThu, Jul 16, 8:55 AM PDT · 14322 days ago · 7 km deep · 7 km away
12. 2.112 km SW of Aspen Springs, CaliforniaThu, Jul 16, 8:44 AM PDT · 14322 days ago · 6 km deep · 31 km away
13. 1.818 km ENE of Swall Meadows, CaliforniaThu, Jul 16, 8:22 AM PDT · 14322 days ago · 7 km deep · 8 km away
14. 1.67 km ESE of Mammoth Lakes, CaliforniaThu, Jul 16, 1:32 AM PDT · 14322 days ago · 6 km deep · 39 km away
15. 1.76 km SSW of Swall Meadows, CaliforniaWed, Jul 15, 10:43 PM PDT · 14322 days ago · 3 km deep · 20 km away
16. 1.76 km SSW of Swall Meadows, CaliforniaWed, Jul 15, 3:11 PM PDT · 14322 days ago · 4 km deep · 20 km away
17. 1.76 km SW of Swall Meadows, CaliforniaWed, Jul 15, 2:43 PM PDT · 14322 days ago · 4 km deep · 21 km away
18. 1.89 km SW of Aspen Springs, CaliforniaWed, Jul 15, 10:29 AM PDT · 14323 days ago · 8 km deep · 30 km away
19. 1.74 km S of Swall Meadows, CaliforniaWed, Jul 15, 5:15 AM PDT · 14323 days ago · 4 km deep · 17 km away
20. 1.83 km NW of Round Valley, CaliforniaWed, Jul 15, 3:53 AM PDT · 14323 days ago · 4 km deep · 16 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc103330. Read Thu, Oct 1, 2026, 6:40 AM UTC.