M2.3 earthquake 28 km W of Volcano, Hawaii

Magnitude

2.3 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Fri, Mar 8, 1985, 7:16 PM HST

UTC

1985-03-09 05:16:51 UTC

Depth

18.7 km (11.6 mi), shallow

Epicenter

19.489° N, 155.501° 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

±0.25

Depth from

From location

Station coverage gap

66°

Stations used

41

• Volcano, HawaiiPopulation 2,575. Forecast29 kmW
• Hilo, HawaiiPopulation 43,263. Forecast51 kmWSW
• Honolulu, HawaiiPopulation 350,964. Forecast318 kmSE

After

1. 1.917 km SW of Volcano, HawaiiSat, Mar 9, 1:22 AM HST · 15182 days ago · 10 km deep · 20 km away
2. 1.517 km N of P?hala, HawaiiSat, Mar 9, 8:13 PM HST · 15182 days ago · 9 km deep · 15 km away
3. 1.73 km WSW of Volcano, HawaiiSun, Mar 10, 12:59 AM HST · 15181 days ago · 7 km deep · 26 km away
4. 2.310 km SSW of Leilani Estates, HawaiiSun, Mar 10, 3:24 AM HST · 15181 days ago · 8 km deep · 57 km away
5. 1.88 km SW of Volcano, HawaiiSun, Mar 10, 7:35 AM HST · 15181 days ago · 7 km deep · 24 km away
6. 1.711 km S of Volcano, HawaiiSun, Mar 10, 1:14 PM HST · 15181 days ago · 7 km deep · 34 km away
7. 2.111 km SSE of Volcano, HawaiiSun, Mar 10, 7:05 PM HST · 15181 days ago · 7 km deep · 36 km away
8. 3.416 km SE of Fern Forest, HawaiiMon, Mar 11, 8:21 AM HST · 15180 days ago · 7 km deep · 51 km away
9. 1.912 km SSW of Leilani Estates, HawaiiMon, Mar 11, 12:52 PM HST · 15180 days ago · 6 km deep · 56 km away
10. 1.75 km SW of Volcano, HawaiiMon, Mar 11, 1:00 PM HST · 15180 days ago · 0 km deep · 26 km away
11. 1.616 km SE of Fern Forest, HawaiiMon, Mar 11, 4:01 PM HST · 15180 days ago · 5 km deep · 52 km away
12. 1.616 km S of Volcano, HawaiiTue, Mar 12, 12:30 PM HST · 15179 days ago · 8 km deep · 37 km away
13. 1.76 km SW of Volcano, HawaiiWed, Mar 13, 9:22 PM HST · 15178 days ago · 2 km deep · 27 km away
14. 2.06 km SSW of Volcano, HawaiiThu, Mar 14, 1:26 AM HST · 15177 days ago · 1 km deep · 28 km away
15. 1.76 km SW of Volcano, HawaiiThu, Mar 14, 3:22 AM HST · 15177 days ago · 1 km deep · 24 km away
16. 1.96 km SW of Volcano, HawaiiThu, Mar 14, 3:31 AM HST · 15177 days ago · 2 km deep · 27 km away
17. 1.95 km W of Volcano, HawaiiThu, Mar 14, 7:34 AM HST · 15177 days ago · 4 km deep · 23 km away
18. 1.814 km S of Volcano, HawaiiThu, Mar 14, 9:38 AM HST · 15177 days ago · 6 km deep · 36 km away
19. 1.95 km SW of Volcano, HawaiiThu, Mar 14, 1:22 PM HST · 15177 days ago · 0 km deep · 25 km away
20. 2.010 km SW of Leilani Estates, HawaiiThu, Mar 14, 4:23 PM HST · 15177 days ago · 7 km deep · 55 km away
21. 1.712 km S of Volcano, HawaiiThu, Mar 14, 6:07 PM HST · 15177 days ago · 6 km deep · 35 km away
22. 2.013 km NNW of P?hala, HawaiiThu, Mar 14, 7:58 PM HST · 15177 days ago · 23 km deep · 19 km away
23. 1.5Island of Hawaii, HawaiiThu, Mar 14, 8:48 PM HST · 15177 days ago · 9 km deep · 21 km away
24. 1.613 km SSE of Volcano, HawaiiFri, Mar 15, 12:46 AM HST · 15176 days ago · 6 km deep · 36 km away
25. 1.814 km W of P?hala, HawaiiFri, Mar 15, 4:32 AM HST · 15176 days ago · 7 km deep · 33 km away
26. 2.816 km S of Volcano, HawaiiFri, Mar 15, 4:55 AM HST · 15176 days ago · 9 km deep · 35 km away
27. 2.112 km SSE of Volcano, HawaiiFri, Mar 15, 12:50 PM HST · 15176 days ago · 8 km deep · 37 km away
28. 2.217 km N of P?hala, HawaiiFri, Mar 15, 5:49 PM HST · 15176 days ago · 8 km deep · 14 km away
29. 1.76 km WSW of Volcano, HawaiiSat, Mar 16, 1:40 AM HST · 15175 days ago · 7 km deep · 24 km away
30. 2.07 km SW of Volcano, HawaiiSat, Mar 16, 1:41 AM HST · 15175 days ago · 7 km deep · 25 km away
31. 1.712 km SSE of Volcano, HawaiiSat, Mar 16, 6:32 AM HST · 15175 days ago · 6 km deep · 36 km away
32. 3.337 km WSW of Kahaluu-Keauhou, HawaiiSat, Mar 16, 7:55 AM HST · 15175 days ago · 30 km deep · 81 km away
33. 2.012 km N of Wai‘?hinu, HawaiiSat, Mar 16, 4:59 PM HST · 15175 days ago · 7 km deep · 36 km away
34. 1.819 km N of P?hala, HawaiiSat, Mar 16, 5:17 PM HST · 15175 days ago · 8 km deep · 14 km away
35. 3.338 km SE of P?hala, HawaiiSat, Mar 16, 9:26 PM HST · 15175 days ago · 46 km deep · 66 km away
36. 2.09 km W of Volcano, HawaiiSun, Mar 17, 12:45 AM HST · 15174 days ago · 6 km deep · 19 km away
37. 2.313 km SSE of Volcano, HawaiiSun, Mar 17, 12:32 PM HST · 15174 days ago · 7 km deep · 37 km away
38. 1.728 km S of Fern Forest, HawaiiMon, Mar 18, 10:49 AM HST · 15173 days ago · 42 km deep · 51 km away
39. 1.514 km SSE of Fern Forest, HawaiiMon, Mar 18, 3:41 PM HST · 15173 days ago · 6 km deep · 45 km away
40. 3.018 km W of Volcano, HawaiiMon, Mar 18, 3:55 PM HST · 15173 days ago · 8 km deep · 10 km away
41. 1.515 km S of Fern Forest, HawaiiMon, Mar 18, 7:58 PM HST · 15173 days ago · 7 km deep · 44 km away
42. 1.813 km S of Volcano, HawaiiTue, Mar 19, 12:04 AM HST · 15172 days ago · 7 km deep · 32 km away
43. 1.814 km S of Fern Forest, HawaiiTue, Mar 19, 2:18 AM HST · 15172 days ago · 7 km deep · 42 km away
44. 1.525 km W of Volcano, HawaiiTue, Mar 19, 3:24 PM HST · 15172 days ago · 7 km deep · 6 km away
45. 1.913 km S of Volcano, HawaiiTue, Mar 19, 4:12 PM HST · 15172 days ago · 7 km deep · 33 km away
46. 2.3Hawaii region, HawaiiTue, Mar 19, 4:37 PM HST · 15172 days ago · 40 km deep · 58 km away
47. 1.97 km SSW of Volcano, HawaiiTue, Mar 19, 5:01 PM HST · 15172 days ago · 7 km deep · 27 km away
48. 1.513 km SSE of Volcano, HawaiiTue, Mar 19, 10:32 PM HST · 15172 days ago · 7 km deep · 38 km away
49. 1.513 km SSE of Volcano, HawaiiWed, Mar 20, 7:01 AM HST · 15171 days ago · 7 km deep · 37 km away
50. 2.116 km SW of Leilani Estates, HawaiiWed, Mar 20, 3:50 PM HST · 15171 days ago · 7 km deep · 53 km away
51. 1.815 km S of Fern Forest, HawaiiThu, Mar 21, 1:25 AM HST · 15170 days ago · 5 km deep · 42 km away
52. 2.120 km SW of Laup?hoehoe, HawaiiThu, Mar 21, 2:31 PM HST · 15170 days ago · 2 km deep · 42 km away
53. 2.413 km S of Volcano, HawaiiThu, Mar 21, 8:08 PM HST · 15170 days ago · 30 km deep · 33 km away
54. 2.714 km S of Fern Forest, HawaiiFri, Mar 22, 6:43 PM HST · 15169 days ago · 8 km deep · 42 km away
55. 2.84 km SE of Honaunau-Napoopoo, HawaiiSat, Mar 23, 12:56 AM HST · 15168 days ago · 11 km deep · 36 km away
56. 2.217 km S of Pa‘auilo, HawaiiSat, Mar 23, 2:09 AM HST · 15168 days ago · 24 km deep · 45 km away
57. 2.618 km E of Honaunau-Napoopoo, HawaiiSun, Mar 24, 2:38 AM HST · 15167 days ago · 4 km deep · 21 km away
58. 2.53 km W of Honaunau-Napoopoo, HawaiiSun, Mar 24, 4:09 PM HST · 15167 days ago · 8 km deep · 42 km away
59. 2.116 km SE of Fern Forest, HawaiiSun, Mar 24, 4:26 PM HST · 15167 days ago · 8 km deep · 51 km away
60. 1.712 km SSE of Volcano, HawaiiSun, Mar 24, 6:37 PM HST · 15167 days ago · 4 km deep · 36 km away

The first 60 of 199.

Before

1. 2.52 km S of P?hala, HawaiiThu, Mar 7, 4:17 PM HST · 15184 days ago · 33 km deep · 34 km away
2. 2.512 km SSE of Volcano, HawaiiThu, Mar 7, 2:31 PM HST · 15184 days ago · 8 km deep · 36 km away
3. 2.625 km N of P?hala, HawaiiThu, Mar 7, 9:47 AM HST · 15184 days ago · 7 km deep · 6 km away
4. 2.436 km ESE of Naalehu, HawaiiThu, Mar 7, 8:50 AM HST · 15184 days ago · 11 km deep · 66 km away
5. 2.45 km SSW of Volcano, HawaiiWed, Mar 6, 11:31 PM HST · 15184 days ago · 2 km deep · 28 km away
6. 2.413 km NE of P?hala, HawaiiWed, Mar 6, 11:29 PM HST · 15184 days ago · 4 km deep · 27 km away
7. 3.018 km N of P?hala, HawaiiWed, Mar 6, 10:27 PM HST · 15185 days ago · 9 km deep · 14 km away
8. 1.813 km SSE of Volcano, HawaiiWed, Mar 6, 9:03 PM HST · 15185 days ago · 7 km deep · 37 km away
9. 1.511 km SSE of Fern Forest, HawaiiWed, Mar 6, 8:04 PM HST · 15185 days ago · 7 km deep · 43 km away
10. 1.613 km SSE of Eden Roc, HawaiiWed, Mar 6, 3:58 PM HST · 15185 days ago · 8 km deep · 51 km away
11. 2.413 km SSE of Volcano, HawaiiWed, Mar 6, 2:19 PM HST · 15185 days ago · 7 km deep · 38 km away
12. 2.523 km N of P?hala, HawaiiWed, Mar 6, 12:01 PM HST · 15185 days ago · 9 km deep · 9 km away
13. 1.813 km SSE of Volcano, HawaiiWed, Mar 6, 8:39 AM HST · 15185 days ago · 5 km deep · 36 km away
14. 2.412 km SSE of Volcano, HawaiiWed, Mar 6, 7:47 AM HST · 15185 days ago · 7 km deep · 37 km away
15. 1.714 km SSE of Volcano, HawaiiTue, Mar 5, 6:42 PM HST · 15186 days ago · 5 km deep · 38 km away
16. 2.512 km SSE of Volcano, HawaiiTue, Mar 5, 6:13 PM HST · 15186 days ago · 6 km deep · 36 km away
17. 1.916 km N of P?hala, HawaiiTue, Mar 5, 1:32 PM HST · 15186 days ago · 3 km deep · 16 km away
18. 2.111 km SSE of Volcano, HawaiiTue, Mar 5, 1:42 AM HST · 15186 days ago · 7 km deep · 36 km away
19. 2.15 km SSW of Volcano, HawaiiMon, Mar 4, 11:19 PM HST · 15186 days ago · 9 km deep · 27 km away
20. 2.012 km S of Volcano, HawaiiMon, Mar 4, 10:56 PM HST · 15186 days ago · 7 km deep · 34 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19850423. Read Fri, Oct 2, 2026, 8:20 PM UTC.