M1.9 earthquake 5 km SSW of Volcano, Hawaii

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Thu, Jul 20, 1978, 9:55 AM HST

UTC

1978-07-20 19:55:13 UTC

Depth

1.7 km (1.0 mi), shallow

Epicenter

19.393° N, 155.254° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.7 km in depth

Depth from

From location

Station coverage gap

101°

Stations used

9

• Volcano, HawaiiPopulation 2,575. Forecast6 kmSSW
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast37 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast345 kmSE

After

1. 1.98 km SW of Volcano, HawaiiFri, Jul 21, 1:20 AM HST · 17604 days ago · 2 km deep · 3 km away
2. 2.312 km S of Volcano, HawaiiFri, Jul 21, 2:39 AM HST · 17604 days ago · 6 km deep · 8 km away
3. 2.416 km S of Fern Forest, HawaiiFri, Jul 21, 3:38 AM HST · 17604 days ago · 7 km deep · 15 km away
4. 1.712 km SSE of Fern Forest, HawaiiFri, Jul 21, 9:43 AM HST · 17604 days ago · 7 km deep · 19 km away
5. 1.814 km SSE of Volcano, HawaiiFri, Jul 21, 12:46 PM HST · 17603 days ago · 7 km deep · 10 km away
6. 1.612 km SSE of Volcano, HawaiiFri, Jul 21, 2:09 PM HST · 17603 days ago · 6 km deep · 9 km away
7. 1.8Island of Hawaii, HawaiiFri, Jul 21, 3:32 PM HST · 17603 days ago · 7 km deep · 20 km away
8. 2.78 km SW of Volcano, HawaiiFri, Jul 21, 10:50 PM HST · 17603 days ago · 2 km deep · 3 km away
9. 2.013 km SSE of Volcano, HawaiiSat, Jul 22, 12:22 AM HST · 17603 days ago · 7 km deep · 9 km away
10. 1.912 km SSE of Volcano, HawaiiSat, Jul 22, 4:42 AM HST · 17603 days ago · 7 km deep · 9 km away
11. 2.1Island of Hawaii, HawaiiSat, Jul 22, 7:37 AM HST · 17603 days ago · 7 km deep · 18 km away
12. 2.813 km S of Fern Forest, HawaiiSat, Jul 22, 12:58 PM HST · 17602 days ago · 8 km deep · 15 km away
13. 1.714 km S of Volcano, HawaiiSun, Jul 23, 12:09 AM HST · 17602 days ago · 7 km deep · 10 km away
14. 1.912 km S of Volcano, HawaiiSun, Jul 23, 2:14 AM HST · 17602 days ago · 8 km deep · 7 km away
15. 2.413 km SSE of Fern Forest, HawaiiSun, Jul 23, 3:15 AM HST · 17602 days ago · 8 km deep · 17 km away
16. 3.05 km ESE of Leilani Estates, HawaiiSun, Jul 23, 5:46 AM HST · 17602 days ago · 9 km deep · 40 km away
17. 2.126 km N of P?hala, HawaiiSun, Jul 23, 6:25 AM HST · 17602 days ago · 6 km deep · 25 km away
18. 2.512 km SSE of Fern Forest, HawaiiSun, Jul 23, 6:35 AM HST · 17602 days ago · 9 km deep · 19 km away
19. 1.87 km SW of Volcano, HawaiiSun, Jul 23, 7:42 AM HST · 17602 days ago · 2 km deep · 3 km away
20. 2.413 km SSE of Volcano, HawaiiSun, Jul 23, 12:27 PM HST · 17601 days ago · 6 km deep · 10 km away
21. 2.219 km W of Volcano, HawaiiSun, Jul 23, 7:33 PM HST · 17601 days ago · 3 km deep · 18 km away
22. 2.415 km SSE of Fern Forest, HawaiiSun, Jul 23, 10:20 PM HST · 17601 days ago · 5 km deep · 20 km away
23. 2.416 km SE of Fern Forest, HawaiiMon, Jul 24, 1:39 AM HST · 17601 days ago · 8 km deep · 23 km away
24. 2.813 km S of Volcano, HawaiiMon, Jul 24, 6:12 AM HST · 17601 days ago · 9 km deep · 9 km away
25. 2.116 km S of Fern Forest, HawaiiMon, Jul 24, 8:10 AM HST · 17601 days ago · 9 km deep · 16 km away
26. 2.222 km N of P?hala, HawaiiMon, Jul 24, 8:51 AM HST · 17601 days ago · 6 km deep · 25 km away
27. 2.115 km E of Honaunau-Napoopoo, HawaiiMon, Jul 24, 10:20 AM HST · 17600 days ago · 7 km deep · 50 km away
28. 2.416 km SE of Fern Forest, HawaiiMon, Jul 24, 10:47 AM HST · 17600 days ago · 7 km deep · 23 km away
29. 2.117 km N of P?hala, HawaiiMon, Jul 24, 11:06 AM HST · 17600 days ago · 7 km deep · 23 km away
30. 2.415 km S of Fern Forest, HawaiiMon, Jul 24, 11:36 AM HST · 17600 days ago · 7 km deep · 15 km away
31. 2.612 km NW of Wai‘?hinu, HawaiiMon, Jul 24, 1:02 PM HST · 17600 days ago · 7 km deep · 52 km away
32. 2.014 km S of Fern Forest, HawaiiMon, Jul 24, 4:44 PM HST · 17600 days ago · 5 km deep · 14 km away
33. 2.512 km SSE of Waikoloa, HawaiiMon, Jul 24, 11:41 PM HST · 17600 days ago · 9 km deep · 71 km away
34. 2.015 km S of Fern Forest, HawaiiTue, Jul 25, 1:27 AM HST · 17600 days ago · 7 km deep · 14 km away
35. 2.014 km S of Fern Forest, HawaiiTue, Jul 25, 3:24 AM HST · 17600 days ago · 8 km deep · 13 km away
36. 2.212 km SSW of Volcano, HawaiiTue, Jul 25, 3:38 AM HST · 17600 days ago · 25 km deep · 7 km away
37. 2.214 km W of Volcano, HawaiiTue, Jul 25, 6:54 AM HST · 17600 days ago · 8 km deep · 13 km away
38. 2.312 km W of Volcano, HawaiiTue, Jul 25, 3:29 PM HST · 17599 days ago · 8 km deep · 11 km away
39. 3.027 km S of Fern Forest, HawaiiTue, Jul 25, 11:54 PM HST · 17599 days ago · 50 km deep · 25 km away
40. 2.77 km NW of Volcano, HawaiiWed, Jul 26, 10:27 AM HST · 17598 days ago · 13 km deep · 12 km away
41. 2.312 km NNW of Wai‘?hinu, HawaiiWed, Jul 26, 5:56 PM HST · 17598 days ago · 4 km deep · 51 km away
42. 2.412 km SSE of Volcano, HawaiiWed, Jul 26, 6:48 PM HST · 17598 days ago · 6 km deep · 10 km away
43. 2.113 km S of Volcano, HawaiiWed, Jul 26, 6:51 PM HST · 17598 days ago · 7 km deep · 9 km away
44. 1.95 km N of Honaunau-Napoopoo, HawaiiThu, Jul 27, 12:35 AM HST · 17598 days ago · 5 km deep · 65 km away
45. 2.722 km E of Honaunau-Napoopoo, HawaiiThu, Jul 27, 10:09 AM HST · 17598 days ago · 2 km deep · 42 km away
46. 2.316 km N of P?hala, HawaiiThu, Jul 27, 10:40 AM HST · 17597 days ago · 5 km deep · 25 km away
47. 2.315 km S of Fern Forest, HawaiiFri, Jul 28, 2:30 AM HST · 17597 days ago · 7 km deep · 14 km away
48. 2.48 km SSE of Honaunau-Napoopoo, HawaiiFri, Jul 28, 2:32 AM HST · 17597 days ago · 10 km deep · 60 km away
49. 2.222 km E of Honaunau-Napoopoo, HawaiiFri, Jul 28, 2:51 PM HST · 17596 days ago · 3 km deep · 42 km away
50. 2.014 km NE of P?hala, HawaiiFri, Jul 28, 3:28 PM HST · 17596 days ago · 5 km deep · 17 km away
51. 2.312 km S of Volcano, HawaiiFri, Jul 28, 6:58 PM HST · 17596 days ago · 9 km deep · 8 km away
52. 2.416 km S of Fern Forest, HawaiiSat, Jul 29, 1:09 AM HST · 17596 days ago · 9 km deep · 16 km away
53. 2.313 km W of Volcano, HawaiiSat, Jul 29, 4:27 AM HST · 17596 days ago · 4 km deep · 12 km away
54. 2.614 km N of Wai‘?hinu, HawaiiSat, Jul 29, 7:20 AM HST · 17596 days ago · 8 km deep · 44 km away
55. 2.115 km SSE of Fern Forest, HawaiiSat, Jul 29, 12:10 PM HST · 17595 days ago · 7 km deep · 18 km away
56. 1.912 km S of Volcano, HawaiiSat, Jul 29, 3:42 PM HST · 17595 days ago · 7 km deep · 8 km away
57. 1.95 km SSW of Volcano, HawaiiSat, Jul 29, 4:48 PM HST · 17595 days ago · 2 km deep · 0 km away
58. 2.320 km NNE of P?hala, HawaiiSat, Jul 29, 7:01 PM HST · 17595 days ago · 9 km deep · 17 km away
59. 1.87 km SW of Volcano, HawaiiSat, Jul 29, 7:53 PM HST · 17595 days ago · 2 km deep · 3 km away
60. 1.914 km SW of Leilani Estates, HawaiiSat, Jul 29, 9:55 PM HST · 17595 days ago · 8 km deep · 25 km away

The first 60 of 199.

Before

1. 2.614 km SSE of Fern Forest, HawaiiThu, Jul 20, 2:35 AM HST · 17605 days ago · 7 km deep · 17 km away
2. 2.212 km SSE of Volcano, HawaiiThu, Jul 20, 2:06 AM HST · 17605 days ago · 6 km deep · 9 km away
3. 2.111 km S of Volcano, HawaiiThu, Jul 20, 12:18 AM HST · 17605 days ago · 7 km deep · 7 km away
4. 2.113 km S of Fern Forest, HawaiiWed, Jul 19, 1:59 PM HST · 17605 days ago · 6 km deep · 15 km away
5. 2.114 km SSE of Fern Forest, HawaiiTue, Jul 18, 3:41 PM HST · 17606 days ago · 7 km deep · 17 km away
6. 2.24 km SW of Leilani Estates, HawaiiTue, Jul 18, 2:43 PM HST · 17606 days ago · 4 km deep · 33 km away
7. 2.013 km SSE of Volcano, HawaiiTue, Jul 18, 2:21 PM HST · 17606 days ago · 7 km deep · 10 km away
8. 2.33 km E of Leilani Estates, HawaiiTue, Jul 18, 4:29 AM HST · 17607 days ago · 5 km deep · 40 km away
9. 2.913 km SSE of Volcano, HawaiiTue, Jul 18, 4:03 AM HST · 17607 days ago · 9 km deep · 10 km away
10. 1.913 km SSE of Volcano, HawaiiTue, Jul 18, 3:31 AM HST · 17607 days ago · 7 km deep · 9 km away
11. 1.911 km S of Volcano, HawaiiMon, Jul 17, 4:19 PM HST · 17607 days ago · 6 km deep · 8 km away
12. 2.111 km SSE of Fern Forest, HawaiiMon, Jul 17, 3:25 PM HST · 17607 days ago · 6 km deep · 17 km away
13. 2.115 km SSE of Fern Forest, HawaiiMon, Jul 17, 2:48 PM HST · 17607 days ago · 5 km deep · 21 km away
14. 2.32 km E of Leilani Estates, HawaiiMon, Jul 17, 1:11 PM HST · 17607 days ago · 5 km deep · 39 km away
15. 2.114 km SE of Fern Forest, HawaiiMon, Jul 17, 3:22 AM HST · 17608 days ago · 7 km deep · 22 km away
16. 2.114 km SSE of Fern Forest, HawaiiSun, Jul 16, 4:44 PM HST · 17608 days ago · 8 km deep · 18 km away
17. 2.513 km WSW of Volcano, HawaiiSun, Jul 16, 2:43 PM HST · 17608 days ago · 12 km deep · 9 km away
18. 3.516 km SW of Leilani Estates, HawaiiSun, Jul 16, 8:29 AM HST · 17609 days ago · 8 km deep · 26 km away
19. 2.013 km SSE of Volcano, HawaiiSat, Jul 15, 7:14 PM HST · 17609 days ago · 6 km deep · 10 km away
20. 2.212 km S of Volcano, HawaiiSat, Jul 15, 11:38 AM HST · 17609 days ago · 8 km deep · 8 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19781195. Read Thu, Oct 1, 2026, 7:42 AM UTC.