M2.1 earthquake 8 km SW of Volcano, Hawaii

Magnitude

2.1 (ml), micro

Local time

Mon, Apr 27, 1981, 3:33 AM HST

UTC

1981-04-27 13:33:20 UTC

Depth

1.8 km (1.1 mi), shallow

Epicenter

19.381° N, 155.280° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.06

Depth from

From location

Station coverage gap

48°

Stations used

18

• Volcano, HawaiiPopulation 2,575. Forecast8 kmSW
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast40 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast344 kmSE

After

1. 2.225 km ESE of Honaunau-Napoopoo, HawaiiMon, Apr 27, 3:34 AM HST · 16592 days ago · -3 km deep · 37 km away
2. 2.012 km SSE of Volcano, HawaiiMon, Apr 27, 4:00 AM HST · 16592 days ago · 7 km deep · 10 km away
3. 3.116 km S of Fern Forest, HawaiiMon, Apr 27, 4:57 AM HST · 16592 days ago · 8 km deep · 19 km away
4. 2.1Island of Hawaii, HawaiiMon, Apr 27, 5:19 AM HST · 16592 days ago · 7 km deep · 19 km away
5. 2.18 km SW of Volcano, HawaiiMon, Apr 27, 8:46 AM HST · 16592 days ago · 2 km deep · 0 km away
6. 1.911 km S of Volcano, HawaiiMon, Apr 27, 9:22 AM HST · 16592 days ago · 6 km deep · 9 km away
7. 2.08 km SW of Volcano, HawaiiMon, Apr 27, 9:24 AM HST · 16592 days ago · 2 km deep · 0 km away
8. 3.519 km SSE of Volcano, HawaiiMon, Apr 27, 11:29 AM HST · 16592 days ago · 3 km deep · 16 km away
9. 2.114 km SW of Volcano, HawaiiMon, Apr 27, 12:22 PM HST · 16592 days ago · 3 km deep · 6 km away
10. 2.019 km SSE of Volcano, HawaiiMon, Apr 27, 1:10 PM HST · 16592 days ago · 1 km deep · 16 km away
11. 3.57 km SW of Volcano, HawaiiMon, Apr 27, 6:08 PM HST · 16592 days ago · 2 km deep · 1 km away
12. 2.012 km SSE of Volcano, HawaiiMon, Apr 27, 9:23 PM HST · 16592 days ago · 8 km deep · 10 km away
13. 2.011 km SW of Volcano, HawaiiTue, Apr 28, 7:09 AM HST · 16591 days ago · 2 km deep · 3 km away
14. 3.114 km SSE of Volcano, HawaiiTue, Apr 28, 8:46 AM HST · 16591 days ago · 9 km deep · 12 km away
15. 2.311 km SW of Volcano, HawaiiTue, Apr 28, 8:50 AM HST · 16591 days ago · 2 km deep · 3 km away
16. 2.212 km WNW of P?hala, HawaiiTue, Apr 28, 10:42 AM HST · 16591 days ago · 7 km deep · 35 km away
17. 2.116 km S of Fern Forest, HawaiiTue, Apr 28, 12:23 PM HST · 16591 days ago · 8 km deep · 18 km away
18. 2.015 km S of Fern Forest, HawaiiTue, Apr 28, 12:23 PM HST · 16591 days ago · 7 km deep · 19 km away
19. 1.712 km SSE of Volcano, HawaiiTue, Apr 28, 1:05 PM HST · 16591 days ago · 7 km deep · 10 km away
20. 1.915 km S of Fern Forest, HawaiiTue, Apr 28, 1:12 PM HST · 16591 days ago · 7 km deep · 18 km away
21. 1.814 km SSE of Volcano, HawaiiTue, Apr 28, 1:52 PM HST · 16591 days ago · 6 km deep · 14 km away
22. 2.715 km S of Fern Forest, HawaiiTue, Apr 28, 2:51 PM HST · 16591 days ago · 8 km deep · 18 km away
23. 2.47 km SSW of Hilo, HawaiiTue, Apr 28, 5:56 PM HST · 16591 days ago · 35 km deep · 36 km away
24. 2.07 km SW of Volcano, HawaiiTue, Apr 28, 7:28 PM HST · 16591 days ago · 2 km deep · 0 km away
25. 2.013 km NE of P?hala, HawaiiWed, Apr 29, 12:40 AM HST · 16591 days ago · 2 km deep · 15 km away
26. 2.011 km SSW of Volcano, HawaiiWed, Apr 29, 1:51 AM HST · 16590 days ago · 2 km deep · 3 km away
27. 1.514 km SE of Fern Forest, HawaiiWed, Apr 29, 6:40 AM HST · 16590 days ago · 7 km deep · 24 km away
28. 2.114 km SE of Fern Forest, HawaiiWed, Apr 29, 6:41 AM HST · 16590 days ago · 9 km deep · 24 km away
29. 1.97 km SW of Volcano, HawaiiWed, Apr 29, 9:23 AM HST · 16590 days ago · 2 km deep · 1 km away
30. 2.012 km SSW of Volcano, HawaiiWed, Apr 29, 10:45 AM HST · 16590 days ago · 3 km deep · 4 km away
31. 1.613 km SSE of Volcano, HawaiiWed, Apr 29, 2:49 PM HST · 16590 days ago · 5 km deep · 11 km away
32. 2.211 km SW of Volcano, HawaiiWed, Apr 29, 5:39 PM HST · 16590 days ago · 2 km deep · 3 km away
33. 1.914 km SW of Volcano, HawaiiWed, Apr 29, 10:41 PM HST · 16590 days ago · 2 km deep · 7 km away
34. 2.38 km SW of Volcano, HawaiiWed, Apr 29, 11:35 PM HST · 16590 days ago · 2 km deep · 0 km away
35. 2.58 km SSW of Volcano, HawaiiThu, Apr 30, 12:50 AM HST · 16590 days ago · 2 km deep · 0 km away
36. 3.17 km SW of Volcano, HawaiiThu, Apr 30, 1:15 AM HST · 16589 days ago · 2 km deep · 1 km away
37. 2.57 km SW of Volcano, HawaiiThu, Apr 30, 1:18 AM HST · 16589 days ago · 2 km deep · 1 km away
38. 2.58 km SW of Volcano, HawaiiThu, Apr 30, 1:52 AM HST · 16589 days ago · 2 km deep · 0 km away
39. 2.912 km S of Volcano, HawaiiThu, Apr 30, 7:14 AM HST · 16589 days ago · 9 km deep · 9 km away
40. 2.010 km SSW of Volcano, HawaiiThu, Apr 30, 8:52 AM HST · 16589 days ago · 2 km deep · 2 km away
41. 2.312 km SW of Volcano, HawaiiThu, Apr 30, 12:56 PM HST · 16589 days ago · 29 km deep · 4 km away
42. 2.518 km N of P?hala, HawaiiThu, Apr 30, 3:50 PM HST · 16589 days ago · 3 km deep · 19 km away
43. 2.116 km SE of Fern Forest, HawaiiThu, Apr 30, 4:01 PM HST · 16589 days ago · 7 km deep · 27 km away
44. 1.815 km S of Volcano, HawaiiThu, Apr 30, 4:47 PM HST · 16589 days ago · 6 km deep · 11 km away
45. 2.15 km ESE of Leilani Estates, HawaiiThu, Apr 30, 7:59 PM HST · 16589 days ago · 7 km deep · 44 km away
46. 2.17 km SW of Volcano, HawaiiThu, Apr 30, 9:28 PM HST · 16589 days ago · 2 km deep · 2 km away
47. 1.912 km SSE of Volcano, HawaiiThu, Apr 30, 11:27 PM HST · 16589 days ago · 7 km deep · 9 km away
48. 1.713 km SSE of Volcano, HawaiiFri, May 1, 7:44 PM HST · 16588 days ago · 8 km deep · 10 km away
49. 1.614 km S of Fern Forest, HawaiiFri, May 1, 8:32 PM HST · 16588 days ago · 7 km deep · 18 km away
50. 1.515 km S of Fern Forest, HawaiiFri, May 1, 8:39 PM HST · 16588 days ago · 7 km deep · 17 km away
51. 1.727 km ENE of Honaunau-Napoopoo, HawaiiFri, May 1, 9:11 PM HST · 16588 days ago · 7 km deep · 41 km away
52. 1.714 km SSE of Volcano, HawaiiFri, May 1, 11:05 PM HST · 16588 days ago · 4 km deep · 11 km away
53. 2.314 km S of Fern Forest, HawaiiFri, May 1, 11:23 PM HST · 16588 days ago · 9 km deep · 17 km away
54. 1.715 km S of Fern Forest, HawaiiSat, May 2, 1:27 AM HST · 16587 days ago · 7 km deep · 16 km away
55. 1.624 km N of P?hala, HawaiiSat, May 2, 2:27 AM HST · 16587 days ago · 6 km deep · 23 km away
56. 3.916 km S of Volcano, HawaiiSat, May 2, 2:36 AM HST · 16587 days ago · 10 km deep · 11 km away
57. 2.415 km S of Volcano, HawaiiSat, May 2, 4:24 AM HST · 16587 days ago · 7 km deep · 11 km away
58. 3.415 km S of Fern Forest, HawaiiSat, May 2, 7:10 AM HST · 16587 days ago · 8 km deep · 17 km away
59. 1.614 km SSE of Volcano, HawaiiSat, May 2, 6:06 PM HST · 16587 days ago · 7 km deep · 13 km away
60. 2.114 km S of Fern Forest, HawaiiSat, May 2, 6:10 PM HST · 16587 days ago · 7 km deep · 17 km away

The first 60 of at least 201.

Before

1. 2.08 km SW of Volcano, HawaiiMon, Apr 27, 2:21 AM HST · 16592 days ago · 1 km deep · 0 km away
2. 2.113 km SSE of Volcano, HawaiiMon, Apr 27, 2:04 AM HST · 16592 days ago · 6 km deep · 11 km away
3. 2.010 km SW of Volcano, HawaiiSun, Apr 26, 11:53 PM HST · 16593 days ago · 2 km deep · 2 km away
4. 2.619 km WSW of Volcano, HawaiiSun, Apr 26, 11:49 PM HST · 16593 days ago · 9 km deep · 13 km away
5. 2.318 km NE of P?hala, HawaiiSun, Apr 26, 11:06 PM HST · 16593 days ago · 2 km deep · 11 km away
6. 1.913 km S of Volcano, HawaiiSun, Apr 26, 10:04 PM HST · 16593 days ago · 6 km deep · 9 km away
7. 1.814 km SSE of Volcano, HawaiiSun, Apr 26, 8:38 PM HST · 16593 days ago · 7 km deep · 13 km away
8. 2.411 km SW of Volcano, HawaiiSun, Apr 26, 7:01 PM HST · 16593 days ago · 2 km deep · 3 km away
9. 2.314 km S of Volcano, HawaiiSun, Apr 26, 4:10 PM HST · 16593 days ago · 6 km deep · 10 km away
10. 2.210 km SW of Volcano, HawaiiSun, Apr 26, 2:29 PM HST · 16593 days ago · 2 km deep · 2 km away
11. 2.016 km NE of P?hala, HawaiiSun, Apr 26, 2:28 PM HST · 16593 days ago · 6 km deep · 13 km away
12. 2.112 km SSE of Fern Forest, HawaiiSun, Apr 26, 11:50 AM HST · 16593 days ago · 8 km deep · 19 km away
13. 1.812 km SSE of Volcano, HawaiiSun, Apr 26, 10:02 AM HST · 16593 days ago · 7 km deep · 10 km away
14. 2.318 km N of P?hala, HawaiiSun, Apr 26, 8:45 AM HST · 16593 days ago · 11 km deep · 18 km away
15. 1.913 km SSE of Volcano, HawaiiSun, Apr 26, 5:09 AM HST · 16593 days ago · 7 km deep · 11 km away
16. 2.013 km SSE of Volcano, HawaiiSun, Apr 26, 2:48 AM HST · 16593 days ago · 7 km deep · 11 km away
17. 2.012 km S of Volcano, HawaiiSun, Apr 26, 1:41 AM HST · 16593 days ago · 7 km deep · 8 km away
18. 2.114 km SSE of Fern Forest, HawaiiSun, Apr 26, 1:12 AM HST · 16593 days ago · 8 km deep · 19 km away
19. 2.611 km S of Volcano, HawaiiSat, Apr 25, 7:53 PM HST · 16594 days ago · 8 km deep · 8 km away
20. 2.411 km SSE of Volcano, HawaiiSat, Apr 25, 7:20 PM HST · 16594 days ago · 7 km deep · 9 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19811613. Read Wed, Sep 30, 2026, 10:28 PM UTC.