M2.3 earthquake 21 km W of Volcano, Hawaii

Magnitude

2.3 (ml), micro

Local time

Tue, Jul 31, 1979, 3:50 AM HST

UTC

1979-07-31 13:50:00 UTC

Depth

7.2 km (4.5 mi), shallow

Epicenter

19.468° N, 155.434° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Depth from

From location

Station coverage gap

76°

Stations used

24

• Volcano, HawaiiPopulation 2,575. Forecast21 kmW
• Hilo, HawaiiPopulation 43,263. Forecast46 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast325 kmSE

After

1. 2.513 km SSE of Volcano, HawaiiTue, Jul 31, 4:56 AM HST · 17227 days ago · 7 km deep · 31 km away
2. 1.918 km W of Volcano, HawaiiTue, Jul 31, 7:45 AM HST · 17227 days ago · 6 km deep · 5 km away
3. 1.912 km SSE of Volcano, HawaiiTue, Jul 31, 4:05 PM HST · 17227 days ago · 6 km deep · 28 km away
4. 2.119 km WSW of Volcano, HawaiiTue, Jul 31, 5:59 PM HST · 17227 days ago · 9 km deep · 10 km away
5. 3.211 km S of Volcano, HawaiiTue, Jul 31, 10:37 PM HST · 17227 days ago · 9 km deep · 27 km away
6. 2.114 km SSE of Eden Roc, HawaiiWed, Aug 1, 12:38 AM HST · 17227 days ago · 7 km deep · 44 km away
7. 2.018 km S of Volcano, HawaiiWed, Aug 1, 1:03 AM HST · 17227 days ago · 8 km deep · 32 km away
8. 2.516 km SSE of Fern Forest, HawaiiWed, Aug 1, 2:11 AM HST · 17227 days ago · 7 km deep · 42 km away
9. 2.47 km SW of Volcano, HawaiiWed, Aug 1, 2:26 AM HST · 17227 days ago · 2 km deep · 18 km away
10. 3.013 km SSE of Fern Forest, HawaiiWed, Aug 1, 3:01 AM HST · 17227 days ago · 9 km deep · 40 km away
11. 2.213 km SSE of Volcano, HawaiiWed, Aug 1, 3:55 AM HST · 17226 days ago · 8 km deep · 30 km away
12. 3.07 km SW of Volcano, HawaiiWed, Aug 1, 6:14 AM HST · 17226 days ago · 2 km deep · 19 km away
13. 1.53 km SE of Honaunau-Napoopoo, HawaiiWed, Aug 1, 6:30 AM HST · 17226 days ago · -1 km deep · 43 km away
14. 2.021 km WSW of Volcano, HawaiiWed, Aug 1, 12:02 PM HST · 17226 days ago · 7 km deep · 7 km away
15. 2.47 km SSW of Volcano, HawaiiWed, Aug 1, 2:13 PM HST · 17226 days ago · 0 km deep · 20 km away
16. 1.75 km SSW of Volcano, HawaiiWed, Aug 1, 2:17 PM HST · 17226 days ago · 2 km deep · 19 km away
17. 2.35 km SSW of Volcano, HawaiiWed, Aug 1, 2:34 PM HST · 17226 days ago · 2 km deep · 20 km away
18. 1.912 km SSE of Volcano, HawaiiWed, Aug 1, 8:23 PM HST · 17226 days ago · 7 km deep · 28 km away
19. 2.012 km SSE of Volcano, HawaiiWed, Aug 1, 9:50 PM HST · 17226 days ago · 7 km deep · 30 km away
20. 2.05 km SW of Volcano, HawaiiThu, Aug 2, 12:53 AM HST · 17226 days ago · 2 km deep · 19 km away
21. 2.118 km NNE of P?hala, HawaiiThu, Aug 2, 12:54 AM HST · 17226 days ago · 9 km deep · 11 km away
22. 2.04 km S of Leilani Estates, HawaiiThu, Aug 2, 1:24 AM HST · 17226 days ago · 6 km deep · 55 km away
23. 2.417 km SE of Fern Forest, HawaiiThu, Aug 2, 5:56 AM HST · 17225 days ago · 7 km deep · 44 km away
24. 2.015 km S of Fern Forest, HawaiiThu, Aug 2, 6:14 AM HST · 17225 days ago · 7 km deep · 34 km away
25. 2.014 km SSE of Volcano, HawaiiThu, Aug 2, 8:23 AM HST · 17225 days ago · 5 km deep · 31 km away
26. 2.911 km SSE of Volcano, HawaiiThu, Aug 2, 8:43 AM HST · 17225 days ago · 29 km deep · 29 km away
27. 2.25 km SSW of Volcano, HawaiiThu, Aug 2, 9:44 AM HST · 17225 days ago · 2 km deep · 20 km away
28. 2.911 km SSE of Volcano, HawaiiThu, Aug 2, 9:58 AM HST · 17225 days ago · 8 km deep · 27 km away
29. 2.317 km SW of Volcano, HawaiiThu, Aug 2, 8:57 PM HST · 17225 days ago · 31 km deep · 17 km away
30. 1.815 km S of Fern Forest, HawaiiThu, Aug 2, 10:15 PM HST · 17225 days ago · 8 km deep · 37 km away
31. 1.515 km SSE of Fern Forest, HawaiiThu, Aug 2, 10:31 PM HST · 17225 days ago · 7 km deep · 42 km away
32. 2.05 km SSW of Volcano, HawaiiThu, Aug 2, 10:48 PM HST · 17225 days ago · 2 km deep · 21 km away
33. 1.913 km SSE of Volcano, HawaiiThu, Aug 2, 11:20 PM HST · 17225 days ago · 7 km deep · 31 km away
34. 1.617 km N of P?hala, HawaiiFri, Aug 3, 12:29 AM HST · 17225 days ago · 6 km deep · 14 km away
35. 1.84 km SW of Volcano, HawaiiFri, Aug 3, 1:45 AM HST · 17225 days ago · 8 km deep · 18 km away
36. 1.912 km S of Volcano, HawaiiFri, Aug 3, 1:47 AM HST · 17225 days ago · 4 km deep · 27 km away
37. 2.014 km SSE of Volcano, HawaiiFri, Aug 3, 3:04 AM HST · 17225 days ago · 6 km deep · 30 km away
38. 3.513 km SSE of Volcano, HawaiiFri, Aug 3, 3:30 AM HST · 17225 days ago · 10 km deep · 29 km away
39. 2.112 km NNE of P?hala, HawaiiFri, Aug 3, 4:46 AM HST · 17224 days ago · 9 km deep · 18 km away
40. 1.912 km S of Volcano, HawaiiFri, Aug 3, 5:36 AM HST · 17224 days ago · 6 km deep · 27 km away
41. 1.95 km SW of Volcano, HawaiiFri, Aug 3, 6:26 AM HST · 17224 days ago · 2 km deep · 19 km away
42. 2.69 km S of Volcano, HawaiiFri, Aug 3, 9:37 AM HST · 17224 days ago · 0 km deep · 24 km away
43. 2.46 km SSW of Volcano, HawaiiFri, Aug 3, 10:14 AM HST · 17224 days ago · 2 km deep · 20 km away
44. 2.79 km SW of Captain Cook, HawaiiFri, Aug 3, 11:32 AM HST · 17224 days ago · 31 km deep · 59 km away
45. 2.57 km SW of Volcano, HawaiiFri, Aug 3, 5:20 PM HST · 17224 days ago · 2 km deep · 18 km away
46. 2.021 km N of P?hala, HawaiiFri, Aug 3, 6:18 PM HST · 17224 days ago · 7 km deep · 8 km away
47. 2.36 km SW of Volcano, HawaiiFri, Aug 3, 10:32 PM HST · 17224 days ago · 2 km deep · 18 km away
48. 3.013 km SSE of Fern Forest, HawaiiFri, Aug 3, 11:25 PM HST · 17224 days ago · 8 km deep · 38 km away
49. 2.07 km SW of Volcano, HawaiiSat, Aug 4, 12:21 AM HST · 17224 days ago · 2 km deep · 18 km away
50. 1.911 km S of Volcano, HawaiiSat, Aug 4, 5:48 AM HST · 17223 days ago · 6 km deep · 26 km away
51. 1.912 km S of Volcano, HawaiiSat, Aug 4, 11:59 AM HST · 17223 days ago · 6 km deep · 27 km away
52. 2.015 km S of Fern Forest, HawaiiSat, Aug 4, 12:37 PM HST · 17223 days ago · 7 km deep · 35 km away
53. 3.017 km W of Volcano, HawaiiSat, Aug 4, 5:02 PM HST · 17223 days ago · 7 km deep · 6 km away
54. 1.66 km S of Volcano, HawaiiSat, Aug 4, 5:30 PM HST · 17223 days ago · 2 km deep · 22 km away
55. 2.0Island of Hawaii, HawaiiSat, Aug 4, 5:58 PM HST · 17223 days ago · 4 km deep · 22 km away
56. 2.712 km SE of Fern Forest, HawaiiSat, Aug 4, 7:12 PM HST · 17223 days ago · 9 km deep · 41 km away
57. 2.05 km SSW of Volcano, HawaiiSat, Aug 4, 8:24 PM HST · 17223 days ago · 2 km deep · 21 km away
58. 1.512 km SSE of Fern Forest, HawaiiSat, Aug 4, 9:00 PM HST · 17223 days ago · 7 km deep · 36 km away
59. 1.95 km SSW of Volcano, HawaiiSun, Aug 5, 12:16 AM HST · 17223 days ago · 2 km deep · 20 km away
60. 1.911 km S of Volcano, HawaiiSun, Aug 5, 10:09 AM HST · 17222 days ago · 6 km deep · 27 km away

The first 60 of 200.

Before

1. 4.520 km W of Volcano, HawaiiTue, Jul 31, 3:30 AM HST · 17228 days ago · 10 km deep · 1 km away
2. 2.15 km SSW of Volcano, HawaiiMon, Jul 30, 5:23 PM HST · 17228 days ago · 2 km deep · 19 km away
3. 2.113 km SE of Fern Forest, HawaiiMon, Jul 30, 4:29 PM HST · 17228 days ago · 8 km deep · 41 km away
4. 2.414 km SSE of Volcano, HawaiiMon, Jul 30, 3:56 PM HST · 17228 days ago · 9 km deep · 30 km away
5. 1.615 km SSE of Volcano, HawaiiMon, Jul 30, 6:23 AM HST · 17228 days ago · 7 km deep · 33 km away
6. 2.124 km N of P?hala, HawaiiMon, Jul 30, 1:33 AM HST · 17229 days ago · 6 km deep · 7 km away
7. 2.18 km NNE of P?hala, HawaiiMon, Jul 30, 1:15 AM HST · 17229 days ago · 8 km deep · 21 km away
8. 2.019 km W of Volcano, HawaiiSun, Jul 29, 10:24 PM HST · 17229 days ago · 7 km deep · 5 km away
9. 1.715 km SE of Fern Forest, HawaiiSun, Jul 29, 10:02 PM HST · 17229 days ago · 7 km deep · 44 km away
10. 2.128 km SSE of Fern Forest, HawaiiSun, Jul 29, 8:21 PM HST · 17229 days ago · 42 km deep · 50 km away
11. 2.014 km SSE of Volcano, HawaiiSun, Jul 29, 4:41 PM HST · 17229 days ago · 7 km deep · 32 km away
12. 2.015 km NE of P?hala, HawaiiSun, Jul 29, 4:17 PM HST · 17229 days ago · 6 km deep · 22 km away
13. 2.25 km SW of Volcano, HawaiiSun, Jul 29, 11:52 AM HST · 17229 days ago · 0 km deep · 19 km away
14. 2.819 km W of Volcano, HawaiiSun, Jul 29, 8:39 AM HST · 17229 days ago · 7 km deep · 6 km away
15. 2.112 km SSE of Fern Forest, HawaiiSun, Jul 29, 6:46 AM HST · 17229 days ago · 7 km deep · 37 km away
16. 2.114 km SSE of Volcano, HawaiiSun, Jul 29, 6:39 AM HST · 17229 days ago · 7 km deep · 31 km away
17. 2.37 km SW of Volcano, HawaiiSun, Jul 29, 3:35 AM HST · 17230 days ago · 2 km deep · 18 km away
18. 2.418 km E of Honaunau-Napoopoo, HawaiiSun, Jul 29, 2:21 AM HST · 17230 days ago · 5 km deep · 26 km away
19. 2.314 km NNW of Wai‘?hinu, HawaiiSun, Jul 29, 12:55 AM HST · 17230 days ago · 1 km deep · 41 km away
20. 2.114 km S of Fern Forest, HawaiiSat, Jul 28, 8:00 PM HST · 17230 days ago · 8 km deep · 36 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19792513. Read Wed, Sep 30, 2026, 1:22 AM UTC.