M2.5 earthquake 13 km SSE of Volcano, Hawaii

Magnitude

2.5 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Sun, May 21, 1978, 5:38 AM HST

UTC

1978-05-21 15:38:36 UTC

Depth

6.1 km (3.8 mi), shallow

Epicenter

19.331° N, 155.181° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.42

Depth from

From location

Station coverage gap

88°

Stations used

26

• Volcano, HawaiiPopulation 2,575. Forecast14 kmSSE
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast36 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast355 kmSE

After

1. 2.913 km S of Volcano, HawaiiSun, May 21, 1:17 PM HST · 17667 days ago · 9 km deep · 4 km away
2. 2.77 km SW of Volcano, HawaiiSun, May 21, 5:16 PM HST · 17666 days ago · 2 km deep · 12 km away
3. 2.213 km SW of Leilani Estates, HawaiiMon, May 22, 5:45 AM HST · 17666 days ago · 5 km deep · 20 km away
4. 2.118 km W of Volcano, HawaiiMon, May 22, 8:19 AM HST · 17666 days ago · 6 km deep · 27 km away
5. 2.515 km WSW of Honomu, HawaiiMon, May 22, 8:20 AM HST · 17666 days ago · 35 km deep · 57 km away
6. 2.312 km WNW of P?hala, HawaiiMon, May 22, 12:57 PM HST · 17666 days ago · 2 km deep · 44 km away
7. 2.314 km NE of P?hala, HawaiiMon, May 22, 4:10 PM HST · 17666 days ago · 4 km deep · 23 km away
8. 2.05 km SSW of Volcano, HawaiiMon, May 22, 9:08 PM HST · 17665 days ago · 2 km deep · 11 km away
9. 3.815 km S of Volcano, HawaiiMon, May 22, 9:09 PM HST · 17665 days ago · 9 km deep · 5 km away
10. 2.815 km S of Fern Forest, HawaiiMon, May 22, 10:27 PM HST · 17665 days ago · 8 km deep · 6 km away
11. 2.113 km SSE of Fern Forest, HawaiiMon, May 22, 11:45 PM HST · 17665 days ago · 6 km deep · 9 km away
12. 2.516 km SE of Fern Forest, HawaiiTue, May 23, 1:07 AM HST · 17665 days ago · 9 km deep · 16 km away
13. 2.012 km S of Fern Forest, HawaiiTue, May 23, 3:54 AM HST · 17665 days ago · 7 km deep · 5 km away
14. 2.213 km S of Volcano, HawaiiTue, May 23, 7:09 AM HST · 17665 days ago · 7 km deep · 5 km away
15. 3.517 km SE of Fern Forest, HawaiiWed, May 24, 3:59 AM HST · 17664 days ago · 7 km deep · 16 km away
16. 2.220 km W of Volcano, HawaiiWed, May 24, 4:38 AM HST · 17664 days ago · 2 km deep · 27 km away
17. 2.56 km SSW of Volcano, HawaiiWed, May 24, 12:22 PM HST · 17664 days ago · 2 km deep · 10 km away
18. 3.010 km SSE of Volcano, HawaiiWed, May 24, 4:52 PM HST · 17664 days ago · 36 km deep · 4 km away
19. 3.010 km SSE of Volcano, HawaiiWed, May 24, 7:39 PM HST · 17663 days ago · 37 km deep · 4 km away
20. 2.915 km S of Volcano, HawaiiThu, May 25, 12:12 AM HST · 17663 days ago · 9 km deep · 5 km away
21. 2.215 km SSE of Fern Forest, HawaiiThu, May 25, 1:19 AM HST · 17663 days ago · 8 km deep · 8 km away
22. 3.118 km W of Volcano, HawaiiThu, May 25, 8:00 AM HST · 17663 days ago · 6 km deep · 26 km away
23. 2.516 km NE of P?hala, HawaiiThu, May 25, 9:45 AM HST · 17663 days ago · 3 km deep · 20 km away
24. 2.613 km SSE of Fern Forest, HawaiiThu, May 25, 12:48 PM HST · 17663 days ago · 8 km deep · 9 km away
25. 2.414 km S of Fern Forest, HawaiiThu, May 25, 11:00 PM HST · 17662 days ago · 8 km deep · 7 km away
26. 3.05 km E of P?hala, HawaiiFri, May 26, 12:43 AM HST · 17662 days ago · 35 km deep · 30 km away
27. 2.219 km WSW of Volcano, HawaiiFri, May 26, 12:56 AM HST · 17662 days ago · 6 km deep · 26 km away
28. 2.6Island of Hawaii, HawaiiFri, May 26, 9:55 AM HST · 17662 days ago · 9 km deep · 23 km away
29. 2.719 km N of P?hala, HawaiiFri, May 26, 12:11 PM HST · 17662 days ago · 3 km deep · 30 km away
30. 2.615 km S of Fern Forest, HawaiiFri, May 26, 7:10 PM HST · 17661 days ago · 8 km deep · 7 km away
31. 2.116 km S of Fern Forest, HawaiiFri, May 26, 7:11 PM HST · 17661 days ago · 8 km deep · 8 km away
32. 2.416 km S of Fern Forest, HawaiiFri, May 26, 7:12 PM HST · 17661 days ago · 8 km deep · 8 km away
33. 2.717 km SSW of Volcano, HawaiiFri, May 26, 9:39 PM HST · 17661 days ago · 8 km deep · 11 km away
34. 3.02 km W of Kailua-Kona, HawaiiSat, May 27, 3:41 AM HST · 17661 days ago · 8 km deep · 94 km away
35. 2.71 km NNW of Kailua-Kona, HawaiiSat, May 27, 11:44 AM HST · 17661 days ago · 7 km deep · 94 km away
36. 2.114 km SE of Fern Forest, HawaiiSun, May 28, 12:59 AM HST · 17660 days ago · 7 km deep · 15 km away
37. 2.318 km NNE of P?hala, HawaiiSun, May 28, 12:59 AM HST · 17660 days ago · 9 km deep · 26 km away
38. 2.214 km NNE of P?hala, HawaiiSun, May 28, 1:12 AM HST · 17660 days ago · 9 km deep · 25 km away
39. 2.115 km SSE of Fern Forest, HawaiiSun, May 28, 6:48 AM HST · 17660 days ago · 7 km deep · 9 km away
40. 2.217 km W of Volcano, HawaiiSun, May 28, 10:33 AM HST · 17660 days ago · 4 km deep · 26 km away
41. 2.212 km S of Volcano, HawaiiSun, May 28, 2:40 PM HST · 17660 days ago · 7 km deep · 3 km away
42. 2.46 km SSW of Volcano, HawaiiSun, May 28, 6:25 PM HST · 17659 days ago · 1 km deep · 11 km away
43. 2.619 km W of Volcano, HawaiiMon, May 29, 10:32 AM HST · 17659 days ago · 6 km deep · 26 km away
44. 2.712 km W of Volcano, HawaiiMon, May 29, 3:28 PM HST · 17659 days ago · 7 km deep · 22 km away
45. 2.112 km S of Volcano, HawaiiMon, May 29, 5:02 PM HST · 17659 days ago · 4 km deep · 4 km away
46. 2.414 km SSE of Volcano, HawaiiMon, May 29, 5:15 PM HST · 17658 days ago · 5 km deep · 2 km away
47. 2.714 km SSE of Volcano, HawaiiMon, May 29, 5:20 PM HST · 17658 days ago · 8 km deep · 2 km away
48. 2.014 km SSE of Volcano, HawaiiTue, May 30, 2:28 AM HST · 17658 days ago · 5 km deep · 2 km away
49. 2.114 km SSE of Volcano, HawaiiTue, May 30, 12:57 PM HST · 17658 days ago · 6 km deep · 3 km away
50. 2.416 km S of Fern Forest, HawaiiTue, May 30, 5:08 PM HST · 17658 days ago · 7 km deep · 7 km away
51. 2.414 km S of Fern Forest, HawaiiTue, May 30, 5:59 PM HST · 17657 days ago · 8 km deep · 6 km away
52. 1.912 km SSE of Volcano, HawaiiTue, May 30, 9:58 PM HST · 17657 days ago · 7 km deep · 1 km away
53. 2.210 km SSW of Volcano, HawaiiWed, May 31, 4:14 AM HST · 17657 days ago · 8 km deep · 8 km away
54. 2.013 km SSE of Volcano, HawaiiWed, May 31, 4:34 AM HST · 17657 days ago · 6 km deep · 1 km away
55. 1.552 km SE of Naalehu, HawaiiWed, May 31, 7:50 AM HST · 17657 days ago · 17 km deep · 59 km away
56. 2.111 km S of Volcano, HawaiiWed, May 31, 2:33 PM HST · 17657 days ago · 7 km deep · 4 km away
57. 3.210 km S of Volcano, HawaiiWed, May 31, 2:37 PM HST · 17657 days ago · 9 km deep · 8 km away
58. 2.213 km SSE of Volcano, HawaiiWed, May 31, 4:12 PM HST · 17657 days ago · 6 km deep · 2 km away
59. 2.515 km SSW of Volcano, HawaiiWed, May 31, 7:12 PM HST · 17656 days ago · 5 km deep · 13 km away
60. 2.615 km SSW of Volcano, HawaiiWed, May 31, 7:15 PM HST · 17656 days ago · 5 km deep · 13 km away

The first 60 of 198.

Before

1. 2.213 km SSE of Volcano, HawaiiSun, May 21, 4:08 AM HST · 17667 days ago · 4 km deep · 2 km away
2. 2.015 km S of Fern Forest, HawaiiSat, May 20, 7:05 PM HST · 17667 days ago · 7 km deep · 5 km away
3. 2.517 km SW of Leilani Estates, HawaiiSat, May 20, 3:54 PM HST · 17668 days ago · 7 km deep · 17 km away
4. 2.54 km SSW of P?hala, HawaiiSat, May 20, 1:52 PM HST · 17668 days ago · 33 km deep · 37 km away
5. 2.014 km S of Volcano, HawaiiSat, May 20, 5:48 AM HST · 17668 days ago · 7 km deep · 5 km away
6. 2.112 km SSE of Fern Forest, HawaiiSat, May 20, 4:21 AM HST · 17668 days ago · 7 km deep · 9 km away
7. 2.27 km SW of Volcano, HawaiiSat, May 20, 3:44 AM HST · 17668 days ago · 2 km deep · 12 km away
8. 2.013 km S of Fern Forest, HawaiiSat, May 20, 2:43 AM HST · 17668 days ago · 7 km deep · 6 km away
9. 2.06 km ESE of Leilani Estates, HawaiiSat, May 20, 2:09 AM HST · 17668 days ago · 5 km deep · 36 km away
10. 1.912 km SSE of Volcano, HawaiiFri, May 19, 2:53 PM HST · 17669 days ago · 6 km deep · 1 km away
11. 1.93 km N of Naalehu, HawaiiFri, May 19, 12:09 PM HST · 17669 days ago · 58 km deep · 49 km away
12. 3.012 km NNE of P?hala, HawaiiFri, May 19, 10:59 AM HST · 17669 days ago · 9 km deep · 27 km away
13. 2.0Island of Hawaii, HawaiiFri, May 19, 9:50 AM HST · 17669 days ago · 6 km deep · 1 km away
14. 2.719 km NNE of P?hala, HawaiiFri, May 19, 7:22 AM HST · 17669 days ago · 9 km deep · 25 km away
15. 2.220 km W of Volcano, HawaiiFri, May 19, 2:44 AM HST · 17669 days ago · 10 km deep · 28 km away
16. 2.611 km SE of Fern Forest, HawaiiThu, May 18, 11:32 PM HST · 17669 days ago · 7 km deep · 13 km away
17. 2.111 km SSE of Volcano, HawaiiThu, May 18, 9:45 PM HST · 17669 days ago · 7 km deep · 2 km away
18. 2.415 km SSE of Fern Forest, HawaiiThu, May 18, 9:03 PM HST · 17669 days ago · 6 km deep · 8 km away
19. 2.216 km S of Volcano, HawaiiThu, May 18, 8:52 PM HST · 17669 days ago · 9 km deep · 6 km away
20. 2.117 km S of Volcano, HawaiiThu, May 18, 8:51 PM HST · 17669 days ago · 9 km deep · 7 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19780838. Read Sat, Oct 3, 2026, 2:42 PM UTC.