M1.7 earthquake 4 km SW of Volcano, Hawaii

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Thu, Jun 20, 1985, 4:21 AM HST

UTC

1985-06-20 14:21:41 UTC

Depth

12.5 km (7.8 mi), shallow

Epicenter

19.420° N, 155.265° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 2.1 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

169°

Stations used

15

• Volcano, HawaiiPopulation 2,575. Forecast4 kmSW
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast36 kmWSW
• Honolulu, HawaiiPopulation 350,964. Forecast342 kmSE

After

1. 1.814 km S of Fern Forest, HawaiiThu, Jun 20, 6:04 PM HST · 15079 days ago · 5 km deep · 17 km away
2. 1.923 km W of Volcano, HawaiiThu, Jun 20, 8:37 PM HST · 15078 days ago · 3 km deep · 21 km away
3. 1.825 km W of Volcano, HawaiiThu, Jun 20, 10:22 PM HST · 15078 days ago · 7 km deep · 23 km away
4. 1.69 km WSW of Volcano, HawaiiFri, Jun 21, 2:01 AM HST · 15078 days ago · 5 km deep · 5 km away
5. 2.720 km WSW of Volcano, HawaiiFri, Jun 21, 2:47 AM HST · 15078 days ago · 9 km deep · 17 km away
6. 1.68 km NW of P?hala, HawaiiFri, Jun 21, 3:34 AM HST · 15078 days ago · 3 km deep · 33 km away
7. 1.6Island of Hawaii, HawaiiFri, Jun 21, 2:31 PM HST · 15078 days ago · 5 km deep · 28 km away
8. 2.18 km SW of Volcano, HawaiiFri, Jun 21, 3:16 PM HST · 15078 days ago · 8 km deep · 5 km away
9. 1.55 km WSW of Volcano, HawaiiFri, Jun 21, 5:33 PM HST · 15078 days ago · 8 km deep · 1 km away
10. 1.815 km S of Fern Forest, HawaiiFri, Jun 21, 6:53 PM HST · 15078 days ago · 6 km deep · 19 km away
11. 1.67 km SW of Volcano, HawaiiFri, Jun 21, 7:54 PM HST · 15077 days ago · 7 km deep · 3 km away
12. 1.89 km WSW of Volcano, HawaiiFri, Jun 21, 10:34 PM HST · 15077 days ago · 4 km deep · 5 km away
13. 1.714 km SSE of Volcano, HawaiiSat, Jun 22, 11:14 AM HST · 15077 days ago · 6 km deep · 14 km away
14. 2.016 km SE of Fern Forest, HawaiiSat, Jun 22, 2:12 PM HST · 15077 days ago · 6 km deep · 25 km away
15. 1.68 km NNW of P?hala, HawaiiSun, Jun 23, 4:52 AM HST · 15076 days ago · 8 km deep · 30 km away
16. 1.85 km SW of Volcano, HawaiiSun, Jun 23, 6:35 AM HST · 15076 days ago · 3 km deep · 2 km away
17. 1.723 km N of P?hala, HawaiiSun, Jun 23, 7:57 AM HST · 15076 days ago · 5 km deep · 25 km away
18. 2.015 km S of Pa‘auilo, HawaiiSun, Jun 23, 1:05 PM HST · 15076 days ago · 8 km deep · 54 km away
19. 1.514 km SSE of Volcano, HawaiiMon, Jun 24, 1:32 AM HST · 15075 days ago · 6 km deep · 15 km away
20. 1.915 km S of Fern Forest, HawaiiMon, Jun 24, 5:55 AM HST · 15075 days ago · 5 km deep · 18 km away
21. 2.319 km SE of Waimea, HawaiiMon, Jun 24, 5:56 AM HST · 15075 days ago · 14 km deep · 60 km away
22. 1.66 km NNE of P?hala, HawaiiMon, Jun 24, 6:40 PM HST · 15075 days ago · 7 km deep · 27 km away
23. 1.715 km SE of Fern Forest, HawaiiMon, Jun 24, 8:47 PM HST · 15074 days ago · 8 km deep · 25 km away
24. 1.715 km S of Volcano, HawaiiTue, Jun 25, 5:07 PM HST · 15074 days ago · 8 km deep · 14 km away
25. 2.211 km SW of Volcano, HawaiiTue, Jun 25, 9:24 PM HST · 15073 days ago · 30 km deep · 8 km away
26. 2.226 km WNW of Volcano, HawaiiTue, Jun 25, 11:50 PM HST · 15073 days ago · 3 km deep · 25 km away
27. 2.118 km NNE of P?hala, HawaiiWed, Jun 26, 4:13 AM HST · 15073 days ago · 9 km deep · 20 km away
28. 2.115 km SE of Fern Forest, HawaiiWed, Jun 26, 2:41 PM HST · 15073 days ago · 7 km deep · 24 km away
29. 1.64 km W of Volcano, HawaiiWed, Jun 26, 9:32 PM HST · 15072 days ago · 5 km deep · 2 km away
30. 1.95 km SW of Volcano, HawaiiWed, Jun 26, 11:50 PM HST · 15072 days ago · 9 km deep · 2 km away
31. 2.16 km SW of Volcano, HawaiiThu, Jun 27, 4:27 AM HST · 15072 days ago · 8 km deep · 2 km away
32. 1.65 km WSW of Volcano, HawaiiThu, Jun 27, 4:48 AM HST · 15072 days ago · 9 km deep · 2 km away
33. 1.57 km SW of Volcano, HawaiiThu, Jun 27, 4:21 PM HST · 15072 days ago · 8 km deep · 3 km away
34. 2.06 km WSW of Volcano, HawaiiThu, Jun 27, 8:53 PM HST · 15071 days ago · 5 km deep · 3 km away
35. 1.65 km SSW of Volcano, HawaiiThu, Jun 27, 9:38 PM HST · 15071 days ago · 2 km deep · 3 km away
36. 3.016 km S of Honaunau-Napoopoo, HawaiiFri, Jun 28, 5:26 AM HST · 15071 days ago · 10 km deep · 61 km away
37. 2.712 km W of P?hala, HawaiiFri, Jun 28, 5:09 PM HST · 15071 days ago · 5 km deep · 43 km away
38. 2.113 km SW of Leilani Estates, HawaiiFri, Jun 28, 11:09 PM HST · 15070 days ago · 8 km deep · 28 km away
39. 1.615 km S of Fern Forest, HawaiiFri, Jun 28, 11:33 PM HST · 15070 days ago · 7 km deep · 17 km away
40. 2.715 km SW of Leilani Estates, HawaiiSat, Jun 29, 2:14 AM HST · 15070 days ago · 7 km deep · 28 km away
41. 2.014 km SSE of Fern Forest, HawaiiSat, Jun 29, 5:33 AM HST · 15070 days ago · 7 km deep · 19 km away
42. 2.012 km SSE of Volcano, HawaiiSun, Jun 30, 12:40 AM HST · 15069 days ago · 8 km deep · 12 km away
43. 2.225 km N of P?hala, HawaiiSun, Jun 30, 2:14 AM HST · 15069 days ago · 8 km deep · 24 km away
44. 1.714 km S of Volcano, HawaiiSun, Jun 30, 2:19 AM HST · 15069 days ago · 5 km deep · 12 km away
45. 1.926 km N of P?hala, HawaiiSun, Jun 30, 5:03 AM HST · 15069 days ago · 6 km deep · 24 km away
46. 2.113 km SW of Leilani Estates, HawaiiSun, Jun 30, 5:09 AM HST · 15069 days ago · 8 km deep · 29 km away
47. 1.65 km WSW of Volcano, HawaiiSun, Jun 30, 7:01 AM HST · 15069 days ago · 9 km deep · 2 km away
48. 1.514 km S of Fern Forest, HawaiiSun, Jun 30, 10:20 AM HST · 15069 days ago · 7 km deep · 17 km away
49. 4.410 km SW of Volcano, HawaiiSun, Jun 30, 11:12 AM HST · 15069 days ago · 26 km deep · 6 km away
50. 2.715 km S of Fern Forest, HawaiiMon, Jul 1, 2:52 AM HST · 15068 days ago · 8 km deep · 17 km away
51. 1.819 km S of Volcano, HawaiiMon, Jul 1, 2:50 PM HST · 15068 days ago · 5 km deep · 18 km away
52. 1.816 km NNE of P?hala, HawaiiMon, Jul 1, 6:59 PM HST · 15068 days ago · 12 km deep · 17 km away
53. 2.112 km SSE of Honaunau-Napoopoo, HawaiiMon, Jul 1, 8:37 PM HST · 15067 days ago · 7 km deep · 60 km away
54. 2.315 km N of P?hala, HawaiiMon, Jul 1, 10:31 PM HST · 15067 days ago · 6 km deep · 26 km away
55. 2.021 km N of P?hala, HawaiiTue, Jul 2, 12:18 AM HST · 15067 days ago · 8 km deep · 20 km away
56. 2.821 km S of Fern Forest, HawaiiWed, Jul 3, 1:51 AM HST · 15066 days ago · 42 km deep · 22 km away
57. 2.013 km WSW of Volcano, HawaiiWed, Jul 3, 3:14 AM HST · 15066 days ago · 9 km deep · 9 km away
58. 2.724 km WNW of Volcano, HawaiiWed, Jul 3, 4:59 AM HST · 15066 days ago · 2 km deep · 22 km away
59. 2.316 km S of Honoka‘a, HawaiiWed, Jul 3, 5:15 AM HST · 15066 days ago · 19 km deep · 62 km away
60. 1.62 km W of P?hala, HawaiiWed, Jul 3, 3:53 PM HST · 15066 days ago · 6 km deep · 35 km away

The first 60 of at least 199.

Before

1. 2.119 km W of Volcano, HawaiiThu, Jun 20, 2:43 AM HST · 15079 days ago · 7 km deep · 17 km away
2. 1.915 km N of P?hala, HawaiiThu, Jun 20, 2:12 AM HST · 15079 days ago · 5 km deep · 24 km away
3. 1.516 km N of P?hala, HawaiiWed, Jun 19, 6:20 PM HST · 15080 days ago · 7 km deep · 23 km away
4. 2.115 km SSE of Honaunau-Napoopoo, HawaiiWed, Jun 19, 5:32 AM HST · 15080 days ago · 10 km deep · 57 km away
5. 1.713 km SSE of Volcano, HawaiiWed, Jun 19, 4:13 AM HST · 15080 days ago · 6 km deep · 12 km away
6. 2.512 km SSE of Volcano, HawaiiWed, Jun 19, 3:57 AM HST · 15080 days ago · 8 km deep · 11 km away
7. 1.913 km SSE of Honaunau-Napoopoo, HawaiiWed, Jun 19, 2:58 AM HST · 15080 days ago · 8 km deep · 58 km away
8. 1.713 km S of Volcano, HawaiiTue, Jun 18, 11:15 PM HST · 15080 days ago · 6 km deep · 13 km away
9. 1.525 km N of P?hala, HawaiiTue, Jun 18, 4:37 AM HST · 15081 days ago · 6 km deep · 23 km away
10. 2.112 km SSE of Volcano, HawaiiTue, Jun 18, 3:08 AM HST · 15081 days ago · 6 km deep · 12 km away
11. 2.114 km WSW of Volcano, HawaiiTue, Jun 18, 12:42 AM HST · 15081 days ago · 9 km deep · 11 km away
12. 1.66 km W of Volcano, HawaiiMon, Jun 17, 10:01 PM HST · 15081 days ago · 6 km deep · 4 km away
13. 1.9Island of Hawaii, HawaiiMon, Jun 17, 9:39 PM HST · 15081 days ago · 9 km deep · 25 km away
14. 3.218 km N of P?hala, HawaiiMon, Jun 17, 7:37 AM HST · 15082 days ago · 9 km deep · 23 km away
15. 2.67 km SW of Volcano, HawaiiMon, Jun 17, 7:04 AM HST · 15082 days ago · 16 km deep · 3 km away
16. 1.713 km SSE of Volcano, HawaiiMon, Jun 17, 5:08 AM HST · 15082 days ago · 6 km deep · 13 km away
17. 3.523 km SSE of Fern Forest, HawaiiMon, Jun 17, 2:31 AM HST · 15082 days ago · 46 km deep · 26 km away
18. 2.312 km WSW of Kahaluu-Keauhou, HawaiiMon, Jun 17, 12:49 AM HST · 15082 days ago · 37 km deep · 85 km away
19. 2.019 km N of P?hala, HawaiiSun, Jun 16, 9:43 AM HST · 15083 days ago · 8 km deep · 20 km away
20. 1.715 km S of Volcano, HawaiiSun, Jun 16, 1:14 AM HST · 15083 days ago · 7 km deep · 14 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19850979. Read Fri, Oct 2, 2026, 5:06 PM UTC.