M2.2 earthquake 13 km S of Volcano, Hawaii

Magnitude

2.2 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Thu, Oct 20, 1977, 6:05 PM HST

UTC

1977-10-21 04:05:47 UTC

Depth

4.7 km (2.9 mi), shallow

Epicenter

19.325° N, 155.220° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.07

Depth from

From location

Station coverage gap

72°

Stations used

29

• Volcano, HawaiiPopulation 2,575. Forecast13 kmS
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast39 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast352 kmSE

After

1. 2.116 km W of Volcano, HawaiiThu, Oct 20, 7:00 PM HST · 17878 days ago · 1 km deep · 22 km away
2. 2.115 km SE of Fern Forest, HawaiiThu, Oct 20, 7:02 PM HST · 17878 days ago · 5 km deep · 20 km away
3. 2.015 km SSE of Volcano, HawaiiFri, Oct 21, 1:37 AM HST · 17878 days ago · 4 km deep · 6 km away
4. 1.914 km S of Volcano, HawaiiFri, Oct 21, 2:08 AM HST · 17878 days ago · 4 km deep · 3 km away
5. 1.920 km W of Volcano, HawaiiFri, Oct 21, 2:27 AM HST · 17878 days ago · 2 km deep · 24 km away
6. 1.912 km E of P?hala, HawaiiFri, Oct 21, 2:34 AM HST · 17878 days ago · 44 km deep · 20 km away
7. 2.014 km S of Volcano, HawaiiFri, Oct 21, 4:45 AM HST · 17878 days ago · 5 km deep · 4 km away
8. 2.215 km SSE of Fern Forest, HawaiiFri, Oct 21, 4:24 PM HST · 17877 days ago · 8 km deep · 13 km away
9. 1.912 km SSE of Volcano, HawaiiFri, Oct 21, 9:12 PM HST · 17877 days ago · 8 km deep · 6 km away
10. 2.17 km ESE of Leilani Estates, HawaiiSat, Oct 22, 1:18 AM HST · 17877 days ago · 8 km deep · 40 km away
11. 1.911 km SSE of Volcano, HawaiiSat, Oct 22, 2:01 AM HST · 17877 days ago · 7 km deep · 2 km away
12. 2.116 km SSE of Fern Forest, HawaiiSat, Oct 22, 4:38 AM HST · 17877 days ago · 7 km deep · 12 km away
13. 2.114 km SSE of Fern Forest, HawaiiSat, Oct 22, 7:09 AM HST · 17877 days ago · 6 km deep · 17 km away
14. 2.416 km SSE of Fern Forest, HawaiiSun, Oct 23, 5:10 AM HST · 17876 days ago · 7 km deep · 13 km away
15. 2.014 km S of Fern Forest, HawaiiSun, Oct 23, 3:57 PM HST · 17875 days ago · 6 km deep · 10 km away
16. 2.220 km N of P?hala, HawaiiSun, Oct 23, 8:32 PM HST · 17875 days ago · 9 km deep · 25 km away
17. 2.020 km N of P?hala, HawaiiMon, Oct 24, 3:51 PM HST · 17874 days ago · 8 km deep · 26 km away
18. 2.25 km WNW of P?hala, HawaiiMon, Oct 24, 8:03 PM HST · 17874 days ago · 0 km deep · 34 km away
19. 2.54 km ENE of Honaunau-Napoopoo, HawaiiMon, Oct 24, 9:19 PM HST · 17874 days ago · 6 km deep · 66 km away
20. 2.516 km SSE of Fern Forest, HawaiiTue, Oct 25, 10:53 AM HST · 17874 days ago · 7 km deep · 18 km away
21. 1.97 km SW of Volcano, HawaiiTue, Oct 25, 9:41 PM HST · 17873 days ago · 0 km deep · 11 km away
22. 1.712 km NNE of P?hala, HawaiiTue, Oct 25, 10:56 PM HST · 17873 days ago · 7 km deep · 23 km away
23. 2.98 km N of Naalehu, HawaiiWed, Oct 26, 1:09 AM HST · 17873 days ago · 6 km deep · 43 km away
24. 3.652 km ESE of P?hala, HawaiiWed, Oct 26, 1:11 AM HST · 17873 days ago · 46 km deep · 44 km away
25. 2.116 km SSE of Waikoloa, HawaiiWed, Oct 26, 2:06 AM HST · 17873 days ago · 31 km deep · 75 km away
26. 1.615 km SSE of Fern Forest, HawaiiWed, Oct 26, 2:22 AM HST · 17873 days ago · 5 km deep · 14 km away
27. 2.017 km S of Fern Forest, HawaiiWed, Oct 26, 8:10 AM HST · 17873 days ago · 4 km deep · 8 km away
28. 2.116 km SE of Fern Forest, HawaiiWed, Oct 26, 12:33 PM HST · 17873 days ago · 6 km deep · 20 km away
29. 2.712 km SSE of Fern Forest, HawaiiWed, Oct 26, 2:08 PM HST · 17873 days ago · 8 km deep · 14 km away
30. 1.912 km SSE of Volcano, HawaiiWed, Oct 26, 5:58 PM HST · 17872 days ago · 6 km deep · 3 km away
31. 2.521 km NW of P?hala, HawaiiWed, Oct 26, 8:26 PM HST · 17872 days ago · 2 km deep · 45 km away
32. 2.32 km SSE of Leilani Estates, HawaiiWed, Oct 26, 9:56 PM HST · 17872 days ago · 4 km deep · 36 km away
33. 2.122 km N of P?hala, HawaiiWed, Oct 26, 11:00 PM HST · 17872 days ago · 7 km deep · 28 km away
34. 2.013 km NE of P?hala, HawaiiThu, Oct 27, 4:53 AM HST · 17872 days ago · 6 km deep · 19 km away
35. 2.416 km SSE of Fern Forest, HawaiiThu, Oct 27, 12:08 PM HST · 17872 days ago · 5 km deep · 16 km away
36. 2.720 km NNE of P?hala, HawaiiThu, Oct 27, 5:53 PM HST · 17871 days ago · 9 km deep · 24 km away
37. 1.913 km SSE of Volcano, HawaiiThu, Oct 27, 10:42 PM HST · 17871 days ago · 3 km deep · 2 km away
38. 2.414 km SSW of Volcano, HawaiiFri, Oct 28, 2:07 AM HST · 17871 days ago · 8 km deep · 5 km away
39. 2.312 km S of Volcano, HawaiiFri, Oct 28, 2:19 AM HST · 17871 days ago · 7 km deep · 1 km away
40. 2.16 km SSW of Fern Forest, HawaiiFri, Oct 28, 3:51 AM HST · 17871 days ago · 29 km deep · 11 km away
41. 3.315 km S of Volcano, HawaiiFri, Oct 28, 4:28 AM HST · 17871 days ago · 9 km deep · 5 km away
42. 2.115 km S of Fern Forest, HawaiiFri, Oct 28, 6:38 AM HST · 17871 days ago · 6 km deep · 12 km away
43. 3.05 km SSE of Leilani Estates, HawaiiFri, Oct 28, 1:18 PM HST · 17871 days ago · 9 km deep · 36 km away
44. 2.116 km S of Fern Forest, HawaiiFri, Oct 28, 4:18 PM HST · 17870 days ago · 9 km deep · 11 km away
45. 2.716 km S of Fern Forest, HawaiiFri, Oct 28, 4:40 PM HST · 17870 days ago · 8 km deep · 11 km away
46. 2.56 km N of P?hala, HawaiiFri, Oct 28, 6:03 PM HST · 17870 days ago · 45 km deep · 29 km away
47. 2.113 km W of Volcano, HawaiiFri, Oct 28, 9:12 PM HST · 17870 days ago · 6 km deep · 20 km away
48. 2.117 km SE of Fern Forest, HawaiiFri, Oct 28, 11:17 PM HST · 17870 days ago · 7 km deep · 19 km away
49. 2.115 km SE of Fern Forest, HawaiiFri, Oct 28, 11:22 PM HST · 17870 days ago · 6 km deep · 19 km away
50. 2.28 km SW of Volcano, HawaiiSat, Oct 29, 2:36 AM HST · 17870 days ago · 1 km deep · 11 km away
51. 2.014 km SE of Fern Forest, HawaiiSat, Oct 29, 4:27 AM HST · 17870 days ago · 8 km deep · 20 km away
52. 2.2Island of Hawaii, HawaiiSat, Oct 29, 8:03 AM HST · 17870 days ago · 6 km deep · 22 km away
53. 1.912 km SSE of Volcano, HawaiiSat, Oct 29, 8:21 AM HST · 17870 days ago · 6 km deep · 4 km away
54. 2.113 km W of Volcano, HawaiiSat, Oct 29, 8:34 AM HST · 17870 days ago · 6 km deep · 20 km away
55. 1.88 km S of Honoka‘a, HawaiiSat, Oct 29, 12:56 PM HST · 17870 days ago · 7 km deep · 80 km away
56. 1.611 km SW of Leilani Estates, HawaiiSat, Oct 29, 8:47 PM HST · 17869 days ago · 5 km deep · 25 km away
57. 2.012 km SE of Volcano, HawaiiSun, Oct 30, 2:45 AM HST · 17869 days ago · 7 km deep · 6 km away
58. 2.225 km W of Volcano, HawaiiSun, Oct 30, 9:37 AM HST · 17869 days ago · 6 km deep · 30 km away
59. 3.215 km S of Fern Forest, HawaiiSun, Oct 30, 10:35 AM HST · 17869 days ago · 8 km deep · 11 km away
60. 2.613 km SSE of Volcano, HawaiiSun, Oct 30, 1:46 PM HST · 17869 days ago · 7 km deep · 4 km away

The first 60 of at least 199.

Before

1. 2.312 km N of Wai‘?hinu, HawaiiThu, Oct 20, 11:27 AM HST · 17879 days ago · 7 km deep · 44 km away
2. 2.618 km SSW of Leilani Estates, HawaiiThu, Oct 20, 10:48 AM HST · 17879 days ago · 6 km deep · 22 km away
3. 2.114 km SW of Leilani Estates, HawaiiThu, Oct 20, 7:08 AM HST · 17879 days ago · 8 km deep · 24 km away
4. 2.30 km NNE of Volcano, HawaiiThu, Oct 20, 5:25 AM HST · 17879 days ago · 32 km deep · 13 km away
5. 2.116 km SSE of Fern Forest, HawaiiWed, Oct 19, 11:41 PM HST · 17879 days ago · 5 km deep · 16 km away
6. 1.86 km SW of Volcano, HawaiiWed, Oct 19, 10:18 AM HST · 17880 days ago · 0 km deep · 11 km away
7. 2.16 km SW of Volcano, HawaiiWed, Oct 19, 8:58 AM HST · 17880 days ago · 15 km deep · 11 km away
8. 2.218 km N of P?hala, HawaiiWed, Oct 19, 5:06 AM HST · 17880 days ago · 7 km deep · 29 km away
9. 2.116 km SSE of Fern Forest, HawaiiWed, Oct 19, 4:54 AM HST · 17880 days ago · 6 km deep · 17 km away
10. 2.115 km SW of Leilani Estates, HawaiiWed, Oct 19, 3:06 AM HST · 17880 days ago · 7 km deep · 24 km away
11. 2.44 km WSW of Volcano, HawaiiWed, Oct 19, 2:51 AM HST · 17880 days ago · 1 km deep · 12 km away
12. 2.13 km WSW of Volcano, HawaiiTue, Oct 18, 11:30 PM HST · 17880 days ago · 0 km deep · 12 km away
13. 2.44 km WSW of Volcano, HawaiiTue, Oct 18, 9:29 PM HST · 17880 days ago · 1 km deep · 12 km away
14. 2.516 km S of Fern Forest, HawaiiTue, Oct 18, 7:48 PM HST · 17880 days ago · 8 km deep · 10 km away
15. 2.011 km SSE of Volcano, HawaiiTue, Oct 18, 2:31 PM HST · 17881 days ago · 7 km deep · 2 km away
16. 2.116 km SE of Fern Forest, HawaiiTue, Oct 18, 11:02 AM HST · 17881 days ago · 6 km deep · 19 km away
17. 2.212 km S of Volcano, HawaiiTue, Oct 18, 8:34 AM HST · 17881 days ago · 7 km deep · 0 km away
18. 2.211 km S of Volcano, HawaiiTue, Oct 18, 6:52 AM HST · 17881 days ago · 8 km deep · 2 km away
19. 1.83 km SW of Volcano, HawaiiMon, Oct 17, 9:11 PM HST · 17881 days ago · 1 km deep · 11 km away
20. 2.1Island of Hawaii, HawaiiMon, Oct 17, 9:07 PM HST · 17881 days ago · 5 km deep · 20 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19772513. Read Fri, Oct 2, 2026, 1:01 PM UTC.