M1.7 earthquake 12 km SSE of Volcano, Hawaii

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Thu, Apr 11, 1985, 10:52 PM HST

UTC

1985-04-12 08:52:51 UTC

Depth

7.7 km (4.8 mi), shallow

Epicenter

19.341° N, 155.178° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.6 km in depth

Depth from

From location

Station coverage gap

78°

Stations used

35

• Volcano, HawaiiPopulation 2,575. Forecast13 kmSSE
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast35 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast355 kmSE

After

1. 2.840 km ESE of Naalehu, HawaiiFri, Apr 12, 12:19 AM HST · 15147 days ago · 11 km deep · 51 km away
2. 2.137 km SE of P?hala, HawaiiFri, Apr 12, 4:26 AM HST · 15147 days ago · 11 km deep · 44 km away
3. 2.541 km ESE of Naalehu, HawaiiFri, Apr 12, 10:11 AM HST · 15146 days ago · 11 km deep · 53 km away
4. 1.825 km N of P?hala, HawaiiFri, Apr 12, 7:31 PM HST · 15146 days ago · 5 km deep · 35 km away
5. 1.99 km WSW of Volcano, HawaiiFri, Apr 12, 10:10 PM HST · 15146 days ago · 3 km deep · 17 km away
6. 2.11 km SSE of Honoka‘a, HawaiiFri, Apr 12, 10:56 PM HST · 15146 days ago · 25 km deep · 86 km away
7. 1.613 km N of P?hala, HawaiiSat, Apr 13, 9:51 AM HST · 15145 days ago · 8 km deep · 33 km away
8. 1.821 km N of P?hala, HawaiiSat, Apr 13, 8:01 PM HST · 15145 days ago · 8 km deep · 29 km away
9. 1.8Island of Hawaii, HawaiiSat, Apr 13, 11:01 PM HST · 15145 days ago · 6 km deep · 34 km away
10. 2.244 km ESE of Naalehu, HawaiiSun, Apr 14, 8:57 AM HST · 15144 days ago · 9 km deep · 49 km away
11. 2.07 km N of Wai‘?hinu, HawaiiSun, Apr 14, 9:52 AM HST · 15144 days ago · 4 km deep · 50 km away
12. 1.816 km N of P?hala, HawaiiSun, Apr 14, 12:55 PM HST · 15144 days ago · 4 km deep · 31 km away
13. 1.812 km ENE of P?hala, HawaiiMon, Apr 15, 5:48 AM HST · 15144 days ago · 6 km deep · 23 km away
14. 1.911 km SSE of Volcano, HawaiiMon, Apr 15, 6:16 AM HST · 15144 days ago · 7 km deep · 2 km away
15. 1.511 km ENE of P?hala, HawaiiMon, Apr 15, 4:00 PM HST · 15143 days ago · 5 km deep · 23 km away
16. 2.013 km S of Volcano, HawaiiMon, Apr 15, 6:55 PM HST · 15143 days ago · 8 km deep · 5 km away
17. 1.512 km NNE of P?hala, HawaiiMon, Apr 15, 8:35 PM HST · 15143 days ago · 9 km deep · 28 km away
18. 2.12 km S of P?hala, HawaiiTue, Apr 16, 1:07 AM HST · 15143 days ago · 34 km deep · 36 km away
19. 1.82 km SW of Volcano, HawaiiTue, Apr 16, 6:25 AM HST · 15143 days ago · 11 km deep · 13 km away
20. 2.021 km W of Volcano, HawaiiTue, Apr 16, 11:22 AM HST · 15142 days ago · 2 km deep · 31 km away
21. 1.912 km SSE of Volcano, HawaiiTue, Apr 16, 2:01 PM HST · 15142 days ago · 7 km deep · 1 km away
22. 1.715 km S of Fern Forest, HawaiiTue, Apr 16, 5:53 PM HST · 15142 days ago · 7 km deep · 5 km away
23. 1.85 km SW of Volcano, HawaiiTue, Apr 16, 8:18 PM HST · 15142 days ago · 10 km deep · 13 km away
24. 1.74 km SW of Volcano, HawaiiWed, Apr 17, 1:20 AM HST · 15142 days ago · 9 km deep · 12 km away
25. 2.114 km NNW of Wai‘?hinu, HawaiiWed, Apr 17, 5:35 AM HST · 15142 days ago · 2 km deep · 56 km away
26. 1.76 km SW of Volcano, HawaiiWed, Apr 17, 5:46 AM HST · 15142 days ago · 7 km deep · 14 km away
27. 1.613 km SSE of Volcano, HawaiiWed, Apr 17, 6:12 AM HST · 15142 days ago · 8 km deep · 2 km away
28. 1.95 km SW of Volcano, HawaiiWed, Apr 17, 7:48 AM HST · 15141 days ago · 9 km deep · 13 km away
29. 1.75 km SW of Volcano, HawaiiWed, Apr 17, 11:45 AM HST · 15141 days ago · 9 km deep · 13 km away
30. 2.924 km N of P?hala, HawaiiWed, Apr 17, 11:56 AM HST · 15141 days ago · 7 km deep · 34 km away
31. 1.75 km SW of Volcano, HawaiiWed, Apr 17, 1:43 PM HST · 15141 days ago · 8 km deep · 13 km away
32. 2.65 km SE of Honaunau-Napoopoo, HawaiiWed, Apr 17, 6:12 PM HST · 15141 days ago · 8 km deep · 69 km away
33. 2.310 km SE of Waikoloa, HawaiiWed, Apr 17, 6:45 PM HST · 15141 days ago · 34 km deep · 82 km away
34. 1.616 km S of Volcano, HawaiiThu, Apr 18, 9:24 AM HST · 15140 days ago · 6 km deep · 7 km away
35. 1.517 km N of P?hala, HawaiiThu, Apr 18, 10:38 AM HST · 15140 days ago · 8 km deep · 30 km away
36. 2.412 km SSE of Volcano, HawaiiThu, Apr 18, 12:47 PM HST · 15140 days ago · 7 km deep · 1 km away
37. 2.39 km SSW of Volcano, HawaiiThu, Apr 18, 1:20 PM HST · 15140 days ago · 32 km deep · 11 km away
38. 2.115 km SE of Fern Forest, HawaiiFri, Apr 19, 2:02 AM HST · 15140 days ago · 8 km deep · 15 km away
39. 1.715 km SW of Volcano, HawaiiFri, Apr 19, 2:18 PM HST · 15139 days ago · 11 km deep · 17 km away
40. 1.85 km SW of Volcano, HawaiiFri, Apr 19, 3:40 PM HST · 15139 days ago · 10 km deep · 13 km away
41. 1.916 km SW of Volcano, HawaiiFri, Apr 19, 9:55 PM HST · 15139 days ago · 10 km deep · 19 km away
42. 1.612 km S of Volcano, HawaiiSat, Apr 20, 1:03 AM HST · 15139 days ago · 6 km deep · 5 km away
43. 1.816 km S of Fern Forest, HawaiiSat, Apr 20, 5:14 AM HST · 15139 days ago · 6 km deep · 4 km away
44. 2.412 km SSE of Honaunau-Napoopoo, HawaiiSat, Apr 20, 5:53 AM HST · 15139 days ago · 8 km deep · 68 km away
45. 2.019 km N of P?hala, HawaiiSat, Apr 20, 6:46 AM HST · 15138 days ago · 9 km deep · 28 km away
46. 1.611 km SSE of Volcano, HawaiiSat, Apr 20, 12:03 PM HST · 15138 days ago · 8 km deep · 3 km away
47. 1.85 km WSW of Volcano, HawaiiSat, Apr 20, 7:13 PM HST · 15138 days ago · 7 km deep · 14 km away
48. 1.612 km SSE of Volcano, HawaiiSat, Apr 20, 8:20 PM HST · 15138 days ago · 7 km deep · 2 km away
49. 1.56 km SW of Volcano, HawaiiSat, Apr 20, 9:10 PM HST · 15138 days ago · 8 km deep · 12 km away
50. 1.66 km SW of Volcano, HawaiiSat, Apr 20, 9:27 PM HST · 15138 days ago · 11 km deep · 12 km away
51. 2.513 km S of Volcano, HawaiiSat, Apr 20, 11:02 PM HST · 15138 days ago · 5 km deep · 5 km away
52. 1.711 km SSE of Volcano, HawaiiSun, Apr 21, 9:28 AM HST · 15137 days ago · 6 km deep · 3 km away
53. 1.95 km SSW of Volcano, HawaiiSun, Apr 21, 9:33 AM HST · 15137 days ago · 2 km deep · 11 km away
54. 2.65 km SSW of Volcano, HawaiiSun, Apr 21, 11:31 AM HST · 15137 days ago · 2 km deep · 10 km away
55. 1.921 km NNW of P?hala, HawaiiSun, Apr 21, 12:17 PM HST · 15137 days ago · 4 km deep · 38 km away
56. 3.21 km WNW of Kailua-Kona, HawaiiSun, Apr 21, 12:37 PM HST · 15137 days ago · 14 km deep · 94 km away
57. 1.86 km SSW of Volcano, HawaiiSun, Apr 21, 11:50 PM HST · 15137 days ago · 2 km deep · 11 km away
58. 2.06 km SW of Volcano, HawaiiMon, Apr 22, 5:04 AM HST · 15137 days ago · 1 km deep · 13 km away
59. 1.66 km SW of Volcano, HawaiiMon, Apr 22, 5:41 AM HST · 15137 days ago · 1 km deep · 14 km away
60. 1.66 km SW of Volcano, HawaiiMon, Apr 22, 6:21 AM HST · 15137 days ago · 1 km deep · 13 km away

The first 60 of 197.

Before

1. 1.96 km SSW of Volcano, HawaiiThu, Apr 11, 7:20 PM HST · 15147 days ago · 2 km deep · 10 km away
2. 1.93 km W of Volcano, HawaiiWed, Apr 10, 7:09 PM HST · 15148 days ago · 23 km deep · 15 km away
3. 2.326 km N of P?hala, HawaiiWed, Apr 10, 12:02 PM HST · 15148 days ago · 7 km deep · 35 km away
4. 1.77 km SW of Volcano, HawaiiWed, Apr 10, 9:46 AM HST · 15148 days ago · 7 km deep · 13 km away
5. 2.026 km N of P?hala, HawaiiWed, Apr 10, 1:17 AM HST · 15149 days ago · 6 km deep · 35 km away
6. 3.219 km N of P?hala, HawaiiTue, Apr 9, 4:54 PM HST · 15149 days ago · 7 km deep · 34 km away
7. 1.65 km SSW of Volcano, HawaiiTue, Apr 9, 4:44 PM HST · 15149 days ago · 2 km deep · 11 km away
8. 2.510 km SSE of Honaunau-Napoopoo, HawaiiTue, Apr 9, 8:15 AM HST · 15149 days ago · 11 km deep · 67 km away
9. 1.714 km S of Volcano, HawaiiTue, Apr 9, 6:06 AM HST · 15150 days ago · 7 km deep · 6 km away
10. 1.6Island of Hawaii, HawaiiTue, Apr 9, 4:11 AM HST · 15150 days ago · 5 km deep · 14 km away
11. 1.92 km NNE of Honaunau-Napoopoo, HawaiiTue, Apr 9, 2:58 AM HST · 15150 days ago · 4 km deep · 73 km away
12. 2.625 km N of P?hala, HawaiiMon, Apr 8, 10:39 PM HST · 15150 days ago · 8 km deep · 34 km away
13. 1.5Island of Hawaii, HawaiiMon, Apr 8, 9:17 AM HST · 15150 days ago · 5 km deep · 34 km away
14. 1.817 km N of P?hala, HawaiiMon, Apr 8, 1:20 AM HST · 15151 days ago · 4 km deep · 31 km away
15. 1.717 km S of Volcano, HawaiiSun, Apr 7, 7:39 PM HST · 15151 days ago · 6 km deep · 7 km away
16. 1.616 km N of P?hala, HawaiiSun, Apr 7, 10:04 AM HST · 15151 days ago · 9 km deep · 34 km away
17. 2.413 km SSE of Volcano, HawaiiSun, Apr 7, 9:45 AM HST · 15151 days ago · 8 km deep · 2 km away
18. 1.712 km SSE of Volcano, HawaiiSun, Apr 7, 5:29 AM HST · 15152 days ago · 7 km deep · 2 km away
19. 1.913 km S of Volcano, HawaiiSun, Apr 7, 1:31 AM HST · 15152 days ago · 7 km deep · 8 km away
20. 2.46 km S of Honoka‘a, HawaiiSat, Apr 6, 5:14 PM HST · 15152 days ago · 0 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19850593. Read Thu, Oct 1, 2026, 4:00 AM UTC.