M2.3 earthquake 16 km S of Volcano, Hawaii

Magnitude

2.3 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Mon, Jul 31, 1978, 4:31 PM HST

UTC

1978-08-01 02:31:13 UTC

Depth

8.9 km (5.5 mi), shallow

Epicenter

19.293° N, 155.214° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.6 km in depth

Depth from

From location

Station coverage gap

145°

Stations used

30

• Volcano, HawaiiPopulation 2,575. Forecast17 kmS
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast42 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast355 kmSE

After

1. 2.321 km N of P?hala, HawaiiMon, Jul 31, 6:58 PM HST · 17593 days ago · 10 km deep · 28 km away
2. 2.213 km SE of Eden Roc, HawaiiMon, Jul 31, 8:01 PM HST · 17593 days ago · 10 km deep · 23 km away
3. 1.96 km SSW of Volcano, HawaiiMon, Jul 31, 11:17 PM HST · 17593 days ago · 2 km deep · 12 km away
4. 2.16 km SW of Volcano, HawaiiTue, Aug 1, 12:28 AM HST · 17593 days ago · 1 km deep · 14 km away
5. 2.713 km W of Volcano, HawaiiTue, Aug 1, 4:35 AM HST · 17593 days ago · 7 km deep · 23 km away
6. 3.115 km SSE of Fern Forest, HawaiiTue, Aug 1, 12:08 PM HST · 17592 days ago · 9 km deep · 12 km away
7. 2.313 km SSE of Volcano, HawaiiTue, Aug 1, 2:01 PM HST · 17592 days ago · 8 km deep · 5 km away
8. 2.1Island of Hawaii, HawaiiTue, Aug 1, 4:02 PM HST · 17592 days ago · 5 km deep · 30 km away
9. 2.517 km SW of Pa‘auilo, HawaiiTue, Aug 1, 4:11 PM HST · 17592 days ago · 34 km deep · 74 km away
10. 2.112 km SSE of Volcano, HawaiiTue, Aug 1, 7:08 PM HST · 17592 days ago · 8 km deep · 6 km away
11. 2.419 km NNE of P?hala, HawaiiWed, Aug 2, 4:16 AM HST · 17592 days ago · 8 km deep · 23 km away
12. 2.110 km S of Volcano, HawaiiWed, Aug 2, 10:41 AM HST · 17592 days ago · 7 km deep · 6 km away
13. 2.115 km SSE of Fern Forest, HawaiiWed, Aug 2, 11:17 AM HST · 17591 days ago · 6 km deep · 16 km away
14. 2.87 km SW of Volcano, HawaiiWed, Aug 2, 4:40 PM HST · 17591 days ago · 2 km deep · 13 km away
15. 2.28 km SW of Volcano, HawaiiWed, Aug 2, 5:18 PM HST · 17591 days ago · 2 km deep · 12 km away
16. 2.515 km SSW of Volcano, HawaiiThu, Aug 3, 12:21 AM HST · 17591 days ago · 9 km deep · 6 km away
17. 2.511 km SSE of Fern Forest, HawaiiThu, Aug 3, 2:01 AM HST · 17591 days ago · 8 km deep · 14 km away
18. 2.19 km SSE of Volcano, HawaiiThu, Aug 3, 6:05 AM HST · 17591 days ago · 2 km deep · 7 km away
19. 2.16 km SSW of Volcano, HawaiiThu, Aug 3, 9:46 AM HST · 17591 days ago · 2 km deep · 12 km away
20. 2.115 km S of Fern Forest, HawaiiFri, Aug 4, 7:37 AM HST · 17590 days ago · 7 km deep · 9 km away
21. 2.312 km SW of Volcano, HawaiiFri, Aug 4, 9:03 AM HST · 17590 days ago · 31 km deep · 13 km away
22. 2.416 km SSE of Fern Forest, HIFri, Aug 4, 4:48 PM HST · 17589 days ago · 7 km deep · 12 km away
23. 2.122 km N of P?hala, HawaiiFri, Aug 4, 7:54 PM HST · 17589 days ago · 6 km deep · 32 km away
24. 2.613 km SSE of Volcano, HawaiiFri, Aug 4, 11:08 PM HST · 17589 days ago · 9 km deep · 6 km away
25. 2.66 km SSW of Volcano, HawaiiSat, Aug 5, 4:28 AM HST · 17589 days ago · 2 km deep · 11 km away
26. 2.112 km SSE of Fern Forest, HawaiiSat, Aug 5, 12:11 PM HST · 17588 days ago · 7 km deep · 14 km away
27. 2.013 km NE of P?hala, HawaiiSat, Aug 5, 1:52 PM HST · 17588 days ago · 8 km deep · 20 km away
28. 3.417 km W of Volcano, HawaiiSat, Aug 5, 8:00 PM HST · 17588 days ago · 9 km deep · 25 km away
29. 2.47 km WNW of Mountain View, HawaiiSat, Aug 5, 9:07 PM HST · 17588 days ago · 11 km deep · 32 km away
30. 2.812 km SE of Fern Forest, HawaiiSat, Aug 5, 11:05 PM HST · 17588 days ago · 8 km deep · 19 km away
31. 2.017 km W of Volcano, HawaiiSun, Aug 6, 1:31 AM HST · 17588 days ago · 4 km deep · 25 km away
32. 2.212 km SSE of Fern Forest, HawaiiSun, Aug 6, 5:17 AM HST · 17588 days ago · 8 km deep · 15 km away
33. 2.312 km SSE of Volcano, HawaiiSun, Aug 6, 4:39 PM HST · 17587 days ago · 9 km deep · 4 km away
34. 2.3Island of Hawaii, HawaiiMon, Aug 7, 4:15 AM HST · 17587 days ago · 5 km deep · 27 km away
35. 2.116 km SE of Fern Forest, HawaiiMon, Aug 7, 6:04 AM HST · 17587 days ago · 7 km deep · 19 km away
36. 2.615 km ENE of P?hala, HawaiiMon, Aug 7, 12:56 PM HST · 17586 days ago · 8 km deep · 15 km away
37. 2.711 km S of Volcano, HawaiiMon, Aug 7, 2:35 PM HST · 17586 days ago · 9 km deep · 5 km away
38. 2.413 km SSE of Volcano, HawaiiMon, Aug 7, 10:07 PM HST · 17586 days ago · 7 km deep · 7 km away
39. 2.8Island of Hawaii, HawaiiTue, Aug 8, 1:15 AM HST · 17586 days ago · 8 km deep · 16 km away
40. 2.813 km SSE of Volcano, HawaiiTue, Aug 8, 11:01 AM HST · 17586 days ago · 9 km deep · 4 km away
41. 2.18 km SW of Volcano, HawaiiTue, Aug 8, 12:26 PM HST · 17585 days ago · 2 km deep · 12 km away
42. 2.19 km SSE of Volcano, HawaiiTue, Aug 8, 12:40 PM HST · 17585 days ago · 2 km deep · 8 km away
43. 3.816 km S of Volcano, HawaiiTue, Aug 8, 9:10 PM HST · 17585 days ago · 10 km deep · 1 km away
44. 2.114 km S of Volcano, HawaiiWed, Aug 9, 1:25 AM HST · 17585 days ago · 6 km deep · 2 km away
45. 2.26 km SSW of Volcano, HawaiiWed, Aug 9, 2:23 AM HST · 17585 days ago · 2 km deep · 12 km away
46. 3.310 km ESE of Leilani Estates, HawaiiWed, Aug 9, 4:43 AM HST · 17585 days ago · 8 km deep · 45 km away
47. 2.014 km NE of P?hala, HawaiiWed, Aug 9, 12:25 PM HST · 17584 days ago · 3 km deep · 19 km away
48. 2.514 km SSE of Fern Forest, HawaiiWed, Aug 9, 3:22 PM HST · 17584 days ago · 7 km deep · 17 km away
49. 2.315 km SSE of Fern Forest, HawaiiWed, Aug 9, 3:26 PM HST · 17584 days ago · 6 km deep · 18 km away
50. 2.114 km SSE of Fern Forest, HawaiiWed, Aug 9, 4:06 PM HST · 17584 days ago · 6 km deep · 17 km away
51. 1.86 km SSW of Volcano, HawaiiWed, Aug 9, 11:37 PM HST · 17584 days ago · 1 km deep · 13 km away
52. 2.418 km WNW of Volcano, HawaiiThu, Aug 10, 1:32 AM HST · 17584 days ago · -2 km deep · 31 km away
53. 1.67 km SW of Volcano, HawaiiThu, Aug 10, 3:21 AM HST · 17584 days ago · 0 km deep · 14 km away
54. 2.18 km SW of Volcano, HawaiiThu, Aug 10, 11:36 AM HST · 17583 days ago · 2 km deep · 12 km away
55. 2.212 km SE of Leilani Estates, HawaiiThu, Aug 10, 12:16 PM HST · 17583 days ago · 11 km deep · 43 km away
56. 2.316 km WSW of Volcano, HawaiiThu, Aug 10, 1:27 PM HST · 17583 days ago · 8 km deep · 23 km away
57. 2.213 km S of Volcano, HawaiiThu, Aug 10, 2:44 PM HST · 17583 days ago · 8 km deep · 3 km away
58. 2.25 km SSW of Volcano, HawaiiFri, Aug 11, 4:14 AM HST · 17583 days ago · 2 km deep · 12 km away
59. 2.18 km SSW of Volcano, HawaiiFri, Aug 11, 9:21 AM HST · 17583 days ago · 2 km deep · 11 km away
60. 2.03 km SSW of Leilani Estates, HawaiiFri, Aug 11, 9:48 AM HST · 17583 days ago · 6 km deep · 34 km away

The first 60 of 198.

Before

1. 2.421 km N of P?hala, HawaiiMon, Jul 31, 4:26 PM HST · 17593 days ago · 9 km deep · 28 km away
2. 2.322 km N of P?hala, HawaiiSun, Jul 30, 2:49 PM HST · 17594 days ago · 9 km deep · 28 km away
3. 1.914 km SW of Leilani Estates, HawaiiSat, Jul 29, 9:55 PM HST · 17595 days ago · 8 km deep · 23 km away
4. 1.87 km SW of Volcano, HawaiiSat, Jul 29, 7:53 PM HST · 17595 days ago · 2 km deep · 13 km away
5. 2.320 km NNE of P?hala, HawaiiSat, Jul 29, 7:01 PM HST · 17595 days ago · 9 km deep · 23 km away
6. 1.95 km SSW of Volcano, HawaiiSat, Jul 29, 4:48 PM HST · 17595 days ago · 2 km deep · 12 km away
7. 1.912 km S of Volcano, HawaiiSat, Jul 29, 3:42 PM HST · 17595 days ago · 7 km deep · 4 km away
8. 2.115 km SSE of Fern Forest, HawaiiSat, Jul 29, 12:10 PM HST · 17595 days ago · 7 km deep · 12 km away
9. 2.614 km N of Wai‘?hinu, HawaiiSat, Jul 29, 7:20 AM HST · 17596 days ago · 8 km deep · 44 km away
10. 2.313 km W of Volcano, HawaiiSat, Jul 29, 4:27 AM HST · 17596 days ago · 4 km deep · 23 km away
11. 2.416 km S of Fern Forest, HawaiiSat, Jul 29, 1:09 AM HST · 17596 days ago · 9 km deep · 10 km away
12. 2.312 km S of Volcano, HawaiiFri, Jul 28, 6:58 PM HST · 17596 days ago · 9 km deep · 4 km away
13. 2.014 km NE of P?hala, HawaiiFri, Jul 28, 3:28 PM HST · 17596 days ago · 5 km deep · 17 km away
14. 2.222 km E of Honaunau-Napoopoo, HawaiiFri, Jul 28, 2:51 PM HST · 17596 days ago · 3 km deep · 50 km away
15. 2.48 km SSE of Honaunau-Napoopoo, HawaiiFri, Jul 28, 2:32 AM HST · 17597 days ago · 10 km deep · 65 km away
16. 2.315 km S of Fern Forest, HawaiiFri, Jul 28, 2:30 AM HST · 17597 days ago · 7 km deep · 9 km away
17. 2.316 km N of P?hala, HawaiiThu, Jul 27, 10:40 AM HST · 17598 days ago · 5 km deep · 30 km away
18. 2.722 km E of Honaunau-Napoopoo, HawaiiThu, Jul 27, 10:09 AM HST · 17598 days ago · 2 km deep · 50 km away
19. 1.95 km N of Honaunau-Napoopoo, HawaiiThu, Jul 27, 12:35 AM HST · 17598 days ago · 5 km deep · 72 km away
20. 2.113 km S of Volcano, HawaiiWed, Jul 26, 6:51 PM HST · 17598 days ago · 7 km deep · 4 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19781260. Read Thu, Oct 1, 2026, 8:39 AM UTC.