M2.1 earthquake 7 km SW of Volcano, Hawaii

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Wed, Sep 30, 1987, 2:03 PM HST

UTC

1987-10-01 00:03:44 UTC

Depth

1.8 km (1.1 mi), shallow

Epicenter

19.392° N, 155.278° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.1 km in depth

Magnitude uncertainty

±0.23

Depth from

From location

Station coverage gap

48°

Stations used

31

• Volcano, HawaiiPopulation 2,575. Forecast7 kmSW
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast39 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast343 kmSE

After

1. 2.09 km WSW of Volcano, HawaiiThu, Oct 1, 12:50 AM HST · 14248 days ago · 6 km deep · 4 km away
2. 2.443 km SE of P?hala, HawaiiThu, Oct 1, 3:02 PM HST · 14248 days ago · 47 km deep · 53 km away
3. 1.816 km S of Fern Forest, HawaiiThu, Oct 1, 4:52 PM HST · 14248 days ago · 6 km deep · 18 km away
4. 1.66 km NNE of P?hala, HawaiiThu, Oct 1, 9:20 PM HST · 14248 days ago · 9 km deep · 24 km away
5. 2.713 km S of Volcano, HawaiiFri, Oct 2, 2:38 PM HST · 14247 days ago · 8 km deep · 10 km away
6. 2.59 km WSW of Volcano, HawaiiFri, Oct 2, 5:42 PM HST · 14247 days ago · 6 km deep · 5 km away
7. 2.020 km SSW of Honoka‘a, HawaiiFri, Oct 2, 6:23 PM HST · 14247 days ago · 20 km deep · 62 km away
8. 2.018 km N of P?hala, HawaiiSat, Oct 3, 1:35 AM HST · 14246 days ago · 9 km deep · 23 km away
9. 2.712 km W of Volcano, HawaiiSat, Oct 3, 8:13 AM HST · 14246 days ago · 9 km deep · 9 km away
10. 2.54 km W of Honoka‘a, HawaiiSat, Oct 3, 9:35 AM HST · 14246 days ago · 6 km deep · 80 km away
11. 1.814 km S of Fern Forest, HawaiiSat, Oct 3, 11:31 AM HST · 14246 days ago · 7 km deep · 18 km away
12. 2.121 km N of P?hala, HawaiiSat, Oct 3, 3:39 PM HST · 14246 days ago · 6 km deep · 23 km away
13. 1.923 km W of Volcano, HawaiiSat, Oct 3, 3:58 PM HST · 14246 days ago · 0 km deep · 20 km away
14. 2.05 km SSW of Volcano, HawaiiSun, Oct 4, 1:39 AM HST · 14245 days ago · 2 km deep · 2 km away
15. 2.3Island of Hawaii, HawaiiSun, Oct 4, 4:32 AM HST · 14245 days ago · 6 km deep · 5 km away
16. 1.714 km SE of Fern Forest, HawaiiSun, Oct 4, 6:31 PM HST · 14245 days ago · 7 km deep · 24 km away
17. 2.04 km NNE of Waikoloa, HawaiiSun, Oct 4, 9:49 PM HST · 14245 days ago · 10 km deep · 83 km away
18. 1.915 km SW of Leilani Estates, HawaiiMon, Oct 5, 1:43 AM HST · 14244 days ago · 8 km deep · 27 km away
19. 1.86 km SW of Volcano, HawaiiMon, Oct 5, 6:26 AM HST · 14244 days ago · 0 km deep · 2 km away
20. 1.911 km S of Naalehu, HawaiiMon, Oct 5, 7:06 AM HST · 14244 days ago · 39 km deep · 57 km away
21. 1.713 km SSE of Volcano, HawaiiMon, Oct 5, 11:18 AM HST · 14244 days ago · 6 km deep · 12 km away
22. 2.518 km E of P?hala, HawaiiMon, Oct 5, 3:02 PM HST · 14244 days ago · 53 km deep · 23 km away
23. 1.911 km S of Volcano, HawaiiMon, Oct 5, 7:37 PM HST · 14244 days ago · 7 km deep · 7 km away
24. 1.514 km SSE of Volcano, HawaiiMon, Oct 5, 10:56 PM HST · 14244 days ago · 7 km deep · 14 km away
25. 1.516 km S of Volcano, HawaiiTue, Oct 6, 4:06 AM HST · 14243 days ago · 7 km deep · 13 km away
26. 1.514 km S of Fern Forest, HawaiiTue, Oct 6, 6:38 PM HST · 14243 days ago · 9 km deep · 18 km away
27. 1.515 km S of Fern Forest, HawaiiWed, Oct 7, 3:17 AM HST · 14242 days ago · 8 km deep · 17 km away
28. 1.95 km SSW of Volcano, HawaiiWed, Oct 7, 12:06 PM HST · 14242 days ago · 2 km deep · 2 km away
29. 1.913 km SSE of Fern Forest, HawaiiWed, Oct 7, 3:06 PM HST · 14242 days ago · 5 km deep · 21 km away
30. 1.98 km NNE of P?hala, HawaiiThu, Oct 8, 12:17 AM HST · 14241 days ago · 10 km deep · 23 km away
31. 2.311 km SSW of Volcano, HawaiiThu, Oct 8, 2:37 AM HST · 14241 days ago · 36 km deep · 5 km away
32. 1.85 km SW of Volcano, HawaiiThu, Oct 8, 5:21 AM HST · 14241 days ago · 2 km deep · 2 km away
33. 1.85 km SSW of Volcano, HawaiiThu, Oct 8, 7:11 AM HST · 14241 days ago · 2 km deep · 2 km away
34. 2.613 km SSE of Volcano, HawaiiThu, Oct 8, 10:59 AM HST · 14241 days ago · 8 km deep · 11 km away
35. 1.77 km SSW of Volcano, HawaiiThu, Oct 8, 3:46 PM HST · 14241 days ago · 29 km deep · 4 km away
36. 1.913 km S of Pa‘auilo, HawaiiFri, Oct 9, 3:19 AM HST · 14240 days ago · 9 km deep · 59 km away
37. 1.96 km N of P?hala, HawaiiFri, Oct 9, 3:39 AM HST · 14240 days ago · 9 km deep · 26 km away
38. 1.514 km S of Fern Forest, HawaiiFri, Oct 9, 7:42 AM HST · 14240 days ago · 7 km deep · 18 km away
39. 2.015 km S of Fern Forest, HawaiiFri, Oct 9, 9:29 AM HST · 14240 days ago · 7 km deep · 17 km away
40. 1.914 km SSE of Volcano, HawaiiFri, Oct 9, 1:05 PM HST · 14240 days ago · 7 km deep · 13 km away
41. 2.365 km SSE of Naalehu, HawaiiFri, Oct 9, 2:37 PM HST · 14240 days ago · 7 km deep · 91 km away
42. 2.529 km ESE of P?hala, HawaiiSat, Oct 10, 10:52 AM HST · 14239 days ago · 57 km deep · 32 km away
43. 2.824 km ESE of P?hala, HawaiiSat, Oct 10, 10:55 AM HST · 14239 days ago · 52 km deep · 31 km away
44. 2.423 km E of P?hala, HawaiiSat, Oct 10, 10:56 AM HST · 14239 days ago · 41 km deep · 23 km away
45. 2.114 km E of P?hala, HawaiiSat, Oct 10, 11:02 AM HST · 14239 days ago · 43 km deep · 20 km away
46. 1.616 km S of Fern Forest, HawaiiSun, Oct 11, 5:21 AM HST · 14238 days ago · 7 km deep · 16 km away
47. 1.63 km E of P?hala, HawaiiSun, Oct 11, 8:45 AM HST · 14238 days ago · 9 km deep · 28 km away
48. 1.714 km S of Fern Forest, HawaiiMon, Oct 12, 1:43 AM HST · 14237 days ago · 8 km deep · 18 km away
49. 1.66 km SW of Volcano, HawaiiMon, Oct 12, 3:55 AM HST · 14237 days ago · 1 km deep · 1 km away
50. 3.715 km S of Volcano, HawaiiMon, Oct 12, 4:06 PM HST · 14237 days ago · 9 km deep · 11 km away
51. 2.014 km S of Volcano, HawaiiMon, Oct 12, 4:29 PM HST · 14237 days ago · 7 km deep · 11 km away
52. 1.68 km NE of P?hala, HawaiiTue, Oct 13, 4:48 PM HST · 14236 days ago · 8 km deep · 21 km away
53. 2.213 km S of Fern Forest, HawaiiTue, Oct 13, 9:42 PM HST · 14236 days ago · 8 km deep · 16 km away
54. 2.86 km NW of P?hala, HawaiiThu, Oct 15, 12:07 AM HST · 14234 days ago · 5 km deep · 30 km away
55. 1.910 km WSW of Volcano, HawaiiThu, Oct 15, 8:28 AM HST · 14234 days ago · 5 km deep · 6 km away
56. 1.65 km SW of Volcano, HawaiiThu, Oct 15, 3:42 PM HST · 14234 days ago · 2 km deep · 2 km away
57. 1.614 km SE of Fern Forest, HawaiiFri, Oct 16, 4:33 AM HST · 14233 days ago · 9 km deep · 25 km away
58. 1.813 km NNW of Wai‘?hinu, HawaiiFri, Oct 16, 5:43 AM HST · 14233 days ago · 7 km deep · 44 km away
59. 1.92 km E of Honaunau-Napoopoo, HawaiiFri, Oct 16, 5:46 AM HST · 14233 days ago · 6 km deep · 60 km away
60. 2.525 km SSW of Honaunau-Napoopoo, HawaiiFri, Oct 16, 9:54 AM HST · 14233 days ago · 28 km deep · 71 km away

The first 60 of 197.

Before

1. 1.90 km ESE of Honaunau-Napoopoo, HawaiiWed, Sep 30, 3:04 AM HST · 14249 days ago · 5 km deep · 61 km away
2. 1.714 km S of Volcano, HawaiiTue, Sep 29, 4:03 PM HST · 14250 days ago · 6 km deep · 11 km away
3. 1.718 km SW of Volcano, HawaiiTue, Sep 29, 2:27 PM HST · 14250 days ago · 8 km deep · 12 km away
4. 2.119 km N of P?hala, HawaiiTue, Sep 29, 1:58 PM HST · 14250 days ago · 8 km deep · 17 km away
5. 2.219 km SSE of Honaunau-Napoopoo, HawaiiTue, Sep 29, 11:24 AM HST · 14250 days ago · 9 km deep · 56 km away
6. 1.815 km S of Fern Forest, HawaiiMon, Sep 28, 6:46 PM HST · 14251 days ago · 6 km deep · 18 km away
7. 2.117 km NNE of P?hala, HawaiiMon, Sep 28, 5:24 PM HST · 14251 days ago · 10 km deep · 14 km away
8. 1.916 km SSE of Fern Forest, HawaiiMon, Sep 28, 1:49 PM HST · 14251 days ago · 5 km deep · 23 km away
9. 1.816 km SSE of Volcano, HawaiiMon, Sep 28, 12:47 PM HST · 14251 days ago · 5 km deep · 15 km away
10. 2.012 km NNW of Wai‘?hinu, HawaiiMon, Sep 28, 5:05 AM HST · 14251 days ago · 8 km deep · 45 km away
11. 1.717 km N of P?hala, HawaiiSun, Sep 27, 5:18 PM HST · 14252 days ago · 8 km deep · 21 km away
12. 1.65 km SSW of Volcano, HawaiiSun, Sep 27, 4:13 PM HST · 14252 days ago · 2 km deep · 2 km away
13. 2.012 km N of Wai‘?hinu, HawaiiSun, Sep 27, 1:07 PM HST · 14252 days ago · 5 km deep · 41 km away
14. 2.623 km WNW of Volcano, HawaiiSat, Sep 26, 10:31 PM HST · 14253 days ago · 4 km deep · 21 km away
15. 2.55 km SSW of Volcano, HawaiiSat, Sep 26, 4:55 PM HST · 14253 days ago · 2 km deep · 2 km away
16. 2.414 km SSE of Fern Forest, HawaiiSat, Sep 26, 2:29 PM HST · 14253 days ago · 9 km deep · 22 km away
17. 1.613 km S of Volcano, HawaiiSat, Sep 26, 3:10 AM HST · 14253 days ago · 7 km deep · 10 km away
18. 1.714 km SSE of Volcano, HawaiiFri, Sep 25, 8:17 PM HST · 14254 days ago · 6 km deep · 12 km away
19. 1.7Island of Hawaii, HawaiiFri, Sep 25, 7:44 PM HST · 14254 days ago · 1 km deep · 21 km away
20. 2.67 km NE of Hawaiian Ocean View, HawaiiFri, Sep 25, 4:47 PM HST · 14254 days ago · 2 km deep · 55 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv251620. Read Sun, Oct 4, 2026, 8:59 PM UTC.