M1.7 earthquake 17 km W of Volcano, Hawaii

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Fri, Jul 31, 1987, 5:41 PM HST

UTC

1987-08-01 03:41:56 UTC

Depth

6.1 km (3.8 mi), shallow

Epicenter

19.432° N, 155.402° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

52°

Stations used

25

• Volcano, HawaiiPopulation 2,575. Forecast18 kmW
• Hilo, HawaiiPopulation 43,263. Forecast46 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast330 kmSE

After

1. 2.114 km S of Volcano, HawaiiFri, Jul 31, 6:55 PM HST · 14307 days ago · 7 km deep · 23 km away
2. 2.625 km N of P?hala, HawaiiFri, Jul 31, 8:55 PM HST · 14307 days ago · 7 km deep · 9 km away
3. 1.612 km W of Volcano, HawaiiSat, Aug 1, 2:14 AM HST · 14306 days ago · 6 km deep · 5 km away
4. 2.415 km E of P?hala, HawaiiSat, Aug 1, 1:14 PM HST · 14306 days ago · 30 km deep · 24 km away
5. 2.12 km SW of Volcano, HawaiiSun, Aug 2, 4:59 PM HST · 14305 days ago · 12 km deep · 16 km away
6. 1.613 km S of Volcano, HawaiiSun, Aug 2, 10:19 PM HST · 14305 days ago · 6 km deep · 23 km away
7. 1.65 km SW of Volcano, HawaiiMon, Aug 3, 9:00 AM HST · 14304 days ago · 13 km deep · 13 km away
8. 2.415 km SE of Fern Forest, HawaiiMon, Aug 3, 3:32 PM HST · 14304 days ago · 8 km deep · 39 km away
9. 2.27 km W of Waimea, HawaiiMon, Aug 3, 3:42 PM HST · 14304 days ago · 10 km deep · 75 km away
10. 1.913 km SSE of Volcano, HawaiiMon, Aug 3, 5:45 PM HST · 14304 days ago · 7 km deep · 26 km away
11. 3.315 km S of Fern Forest, HawaiiTue, Aug 4, 7:14 AM HST · 14303 days ago · 9 km deep · 31 km away
12. 1.623 km N of P?hala, HawaiiTue, Aug 4, 9:55 AM HST · 14303 days ago · 7 km deep · 11 km away
13. 1.817 km N of P?hala, HawaiiTue, Aug 4, 11:04 AM HST · 14303 days ago · 8 km deep · 11 km away
14. 2.38 km SSW of Volcano, HawaiiTue, Aug 4, 12:21 PM HST · 14303 days ago · 3 km deep · 17 km away
15. 2.36 km ENE of Hilo, HawaiiTue, Aug 4, 12:33 PM HST · 14303 days ago · 45 km deep · 52 km away
16. 2.425 km ESE of Honaunau-Napoopoo, HawaiiTue, Aug 4, 2:04 PM HST · 14303 days ago · 7 km deep · 24 km away
17. 2.13 km SW of Volcano, HawaiiTue, Aug 4, 11:12 PM HST · 14303 days ago · 11 km deep · 15 km away
18. 1.713 km S of Fern Forest, HawaiiWed, Aug 5, 3:00 AM HST · 14302 days ago · 8 km deep · 30 km away
19. 1.515 km S of Fern Forest, HawaiiWed, Aug 5, 9:39 AM HST · 14302 days ago · 7 km deep · 31 km away
20. 1.912 km SSE of Volcano, HawaiiWed, Aug 5, 4:30 PM HST · 14302 days ago · 7 km deep · 24 km away
21. 1.91 km NNW of Volcano, HawaiiThu, Aug 6, 4:29 AM HST · 14301 days ago · 2 km deep · 17 km away
22. 2.523 km WNW of Volcano, HawaiiFri, Aug 7, 12:30 PM HST · 14300 days ago · 4 km deep · 9 km away
23. 1.612 km N of P?hala, HawaiiFri, Aug 7, 5:35 PM HST · 14300 days ago · 11 km deep · 16 km away
24. 2.112 km NW of Mountain View, HawaiiFri, Aug 7, 7:47 PM HST · 14300 days ago · 14 km deep · 33 km away
25. 1.616 km S of Fern Forest, HawaiiSat, Aug 8, 8:22 AM HST · 14299 days ago · 8 km deep · 32 km away
26. 1.614 km SSE of Fern Forest, HawaiiSat, Aug 8, 9:22 PM HST · 14299 days ago · 8 km deep · 36 km away
27. 3.814 km S of Volcano, HawaiiSat, Aug 8, 9:45 PM HST · 14299 days ago · 9 km deep · 23 km away
28. 1.916 km S of Volcano, HawaiiSat, Aug 8, 10:04 PM HST · 14299 days ago · 5 km deep · 25 km away
29. 3.515 km S of Volcano, HawaiiSat, Aug 8, 10:11 PM HST · 14299 days ago · 8 km deep · 23 km away
30. 1.614 km S of Volcano, HawaiiSat, Aug 8, 10:14 PM HST · 14299 days ago · 10 km deep · 25 km away
31. 1.616 km S of Volcano, HawaiiSat, Aug 8, 10:22 PM HST · 14299 days ago · 6 km deep · 25 km away
32. 1.615 km SE of Fern Forest, HawaiiSun, Aug 9, 1:38 AM HST · 14299 days ago · 6 km deep · 38 km away
33. 1.616 km S of Volcano, HawaiiSun, Aug 9, 2:11 AM HST · 14298 days ago · 6 km deep · 25 km away
34. 1.814 km S of Fern Forest, HawaiiSun, Aug 9, 2:26 AM HST · 14298 days ago · 7 km deep · 30 km away
35. 1.617 km S of Volcano, HawaiiSun, Aug 9, 2:36 AM HST · 14298 days ago · 6 km deep · 25 km away
36. 1.717 km N of P?hala, HawaiiSun, Aug 9, 5:13 AM HST · 14298 days ago · 8 km deep · 13 km away
37. 1.718 km N of P?hala, HawaiiSun, Aug 9, 11:23 AM HST · 14298 days ago · 7 km deep · 12 km away
38. 1.94 km SW of Volcano, HawaiiSun, Aug 9, 3:46 PM HST · 14298 days ago · 15 km deep · 14 km away
39. 2.029 km ENE of Honaunau-Napoopoo, HawaiiSun, Aug 9, 6:03 PM HST · 14298 days ago · 7 km deep · 24 km away
40. 1.67 km SW of Volcano, HawaiiSun, Aug 9, 9:15 PM HST · 14298 days ago · 2 km deep · 13 km away
41. 2.816 km S of Volcano, HawaiiMon, Aug 10, 4:32 AM HST · 14297 days ago · 10 km deep · 24 km away
42. 1.914 km N of P?hala, HawaiiMon, Aug 10, 8:12 AM HST · 14297 days ago · 7 km deep · 15 km away
43. 1.510 km NNE of P?hala, HawaiiMon, Aug 10, 12:38 PM HST · 14297 days ago · 9 km deep · 17 km away
44. 2.38 km ESE of Waimea, HawaiiMon, Aug 10, 7:02 PM HST · 14297 days ago · 9 km deep · 66 km away
45. 1.911 km NW of Wai‘?hinu, HawaiiMon, Aug 10, 10:35 PM HST · 14297 days ago · 3 km deep · 42 km away
46. 1.515 km SSE of Volcano, HawaiiTue, Aug 11, 4:17 AM HST · 14296 days ago · 8 km deep · 27 km away
47. 2.415 km SSE of Fern Forest, HawaiiTue, Aug 11, 7:02 PM HST · 14296 days ago · 8 km deep · 33 km away
48. 1.98 km WSW of Volcano, HawaiiWed, Aug 12, 4:25 AM HST · 14295 days ago · 5 km deep · 9 km away
49. 1.912 km SSE of Fern Forest, HawaiiWed, Aug 12, 6:43 AM HST · 14295 days ago · 7 km deep · 35 km away
50. 2.17 km ESE of Waimea, HawaiiWed, Aug 12, 12:17 PM HST · 14295 days ago · 11 km deep · 66 km away
51. 1.97 km NNW of P?hala, HawaiiWed, Aug 12, 6:00 PM HST · 14295 days ago · 6 km deep · 21 km away
52. 2.116 km S of Volcano, HawaiiThu, Aug 13, 4:22 AM HST · 14294 days ago · 8 km deep · 23 km away
53. 1.716 km S of Volcano, HawaiiThu, Aug 13, 4:23 AM HST · 14294 days ago · 7 km deep · 24 km away
54. 1.514 km S of Volcano, HawaiiThu, Aug 13, 6:23 PM HST · 14294 days ago · 6 km deep · 23 km away
55. 1.513 km SSE of Fern Forest, HawaiiFri, Aug 14, 7:28 PM HST · 14293 days ago · 8 km deep · 35 km away
56. 1.615 km S of Fern Forest, HawaiiFri, Aug 14, 9:06 PM HST · 14293 days ago · 6 km deep · 31 km away
57. 2.28 km N of Wai‘?hinu, HawaiiSat, Aug 15, 2:33 AM HST · 14292 days ago · 10 km deep · 40 km away
58. 2.110 km SSE of Volcano, HawaiiSat, Aug 15, 8:44 AM HST · 14292 days ago · 8 km deep · 22 km away
59. 1.99 km WSW of Volcano, HawaiiSat, Aug 15, 10:23 AM HST · 14292 days ago · 5 km deep · 9 km away
60. 2.015 km S of Fern Forest, HawaiiSat, Aug 15, 7:35 PM HST · 14292 days ago · 6 km deep · 33 km away

The first 60 of 195.

Before

1. 2.3Hawaii region, HawaiiFri, Jul 31, 7:12 AM HST · 14307 days ago · 6 km deep · 86 km away
2. 2.013 km S of Volcano, HawaiiFri, Jul 31, 6:30 AM HST · 14307 days ago · 7 km deep · 22 km away
3. 2.212 km WSW of Volcano, HawaiiFri, Jul 31, 4:28 AM HST · 14307 days ago · 21 km deep · 9 km away
4. 1.52 km WSW of Volcano, HawaiiThu, Jul 30, 11:16 PM HST · 14308 days ago · 0 km deep · 16 km away
5. 2.11 km NW of Fern Acres, HawaiiThu, Jul 30, 6:12 PM HST · 14308 days ago · 17 km deep · 34 km away
6. 2.35 km SSW of Volcano, HawaiiThu, Jul 30, 12:47 PM HST · 14308 days ago · 2 km deep · 15 km away
7. 1.62 km ENE of P?hala, HawaiiThu, Jul 30, 11:27 AM HST · 14308 days ago · 5 km deep · 25 km away
8. 2.34 km NW of Volcano, HawaiiThu, Jul 30, 1:20 AM HST · 14309 days ago · 22 km deep · 16 km away
9. 1.813 km SSE of Fern Forest, HawaiiWed, Jul 29, 12:55 PM HST · 14309 days ago · 7 km deep · 35 km away
10. 2.315 km W of Volcano, HawaiiWed, Jul 29, 7:38 AM HST · 14309 days ago · 7 km deep · 3 km away
11. 1.75 km WSW of Volcano, HawaiiTue, Jul 28, 8:39 PM HST · 14310 days ago · 1 km deep · 13 km away
12. 3.016 km SE of Fern Forest, HawaiiTue, Jul 28, 1:28 PM HST · 14310 days ago · 7 km deep · 40 km away
13. 2.419 km WNW of Mountain View, HawaiiTue, Jul 28, 7:55 AM HST · 14310 days ago · 7 km deep · 24 km away
14. 2.115 km WSW of Volcano, HawaiiMon, Jul 27, 6:36 PM HST · 14311 days ago · -1 km deep · 3 km away
15. 1.79 km S of P?hala, HawaiiMon, Jul 27, 5:22 PM HST · 14311 days ago · 10 km deep · 36 km away
16. 1.610 km S of Volcano, HawaiiMon, Jul 27, 2:32 PM HST · 14311 days ago · 7 km deep · 21 km away
17. 1.714 km SSE of Fern Forest, HawaiiMon, Jul 27, 11:16 AM HST · 14311 days ago · 8 km deep · 36 km away
18. 1.912 km SE of Fern Forest, HawaiiMon, Jul 27, 6:21 AM HST · 14311 days ago · 8 km deep · 37 km away
19. 1.62 km ESE of P?hala, HawaiiSun, Jul 26, 6:22 PM HST · 14312 days ago · 7 km deep · 27 km away
20. 1.87 km SW of Volcano, HawaiiSun, Jul 26, 6:00 PM HST · 14312 days ago · 1 km deep · 13 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv246700. Read Thu, Oct 1, 2026, 11:40 PM UTC.