M1.8 earthquake 22 km WNW of Volcano, Hawaii

Magnitude

1.8 (ml), micro

Local time

Wed, May 22, 1985, 11:59 PM HST

UTC

1985-05-23 09:59:20 UTC

Depth

4.6 km (2.8 mi), shallow

Epicenter

19.485° N, 155.442° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.30

Depth from

From location

Station coverage gap

68°

Stations used

36

• Volcano, HawaiiPopulation 2,575. Forecast22 kmWNW
• Hilo, HawaiiPopulation 43,263. Forecast46 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast323 kmSE

After

1. 1.712 km WNW of P?hala, HawaiiThu, May 23, 1:46 AM HST · 15105 days ago · 6 km deep · 29 km away
2. 2.016 km S of Volcano, HawaiiThu, May 23, 3:13 AM HST · 15105 days ago · 6 km deep · 31 km away
3. 2.216 km N of P?hala, HawaiiThu, May 23, 7:33 AM HST · 15105 days ago · 8 km deep · 15 km away
4. 1.818 km N of P?hala, HawaiiThu, May 23, 8:50 PM HST · 15105 days ago · 8 km deep · 14 km away
5. 1.519 km N of P?hala, HawaiiFri, May 24, 4:11 AM HST · 15104 days ago · 6 km deep · 14 km away
6. 1.813 km SSE of Fern Forest, HawaiiFri, May 24, 12:45 PM HST · 15104 days ago · 6 km deep · 39 km away
7. 2.512 km WNW of P?hala, HawaiiFri, May 24, 2:16 PM HST · 15104 days ago · 6 km deep · 31 km away
8. 2.113 km SE of Fern Forest, HawaiiFri, May 24, 3:02 PM HST · 15104 days ago · 7 km deep · 43 km away
9. 1.86 km SW of Volcano, HawaiiFri, May 24, 4:38 PM HST · 15104 days ago · 10 km deep · 20 km away
10. 1.714 km S of Volcano, HawaiiSun, May 26, 1:36 PM HST · 15102 days ago · 6 km deep · 30 km away
11. 2.69 km S of Honoka‘a, HawaiiSun, May 26, 7:41 PM HST · 15102 days ago · 7 km deep · 57 km away
12. 3.114 km ENE of P?hala, HawaiiSun, May 26, 8:36 PM HST · 15102 days ago · 7 km deep · 25 km away
13. 1.914 km ENE of P?hala, HawaiiSun, May 26, 9:16 PM HST · 15102 days ago · 6 km deep · 25 km away
14. 1.825 km W of Volcano, HawaiiMon, May 27, 6:37 AM HST · 15101 days ago · 6 km deep · 7 km away
15. 1.914 km SW of Leilani Estates, HawaiiMon, May 27, 7:32 AM HST · 15101 days ago · 6 km deep · 48 km away
16. 1.82 km S of P?hala, HawaiiTue, May 28, 1:43 AM HST · 15100 days ago · 33 km deep · 34 km away
17. 1.93 km ESE of Leilani Estates, HawaiiTue, May 28, 5:38 AM HST · 15100 days ago · 7 km deep · 58 km away
18. 2.011 km S of Volcano, HawaiiTue, May 28, 1:55 PM HST · 15100 days ago · 7 km deep · 28 km away
19. 1.615 km SW of Leilani Estates, HawaiiTue, May 28, 5:55 PM HST · 15100 days ago · 3 km deep · 47 km away
20. 1.99 km WSW of Volcano, HawaiiTue, May 28, 8:06 PM HST · 15100 days ago · 3 km deep · 15 km away
21. 2.224 km ENE of H?lualoa, HawaiiTue, May 28, 8:55 PM HST · 15100 days ago · 6 km deep · 36 km away
22. 1.714 km S of Volcano, HawaiiTue, May 28, 11:27 PM HST · 15100 days ago · 6 km deep · 30 km away
23. 1.76 km SW of Volcano, HawaiiWed, May 29, 2:55 AM HST · 15099 days ago · 2 km deep · 21 km away
24. 2.110 km WSW of Volcano, HawaiiWed, May 29, 3:29 AM HST · 15099 days ago · 5 km deep · 14 km away
25. 1.67 km SW of Volcano, HawaiiWed, May 29, 3:26 PM HST · 15099 days ago · 2 km deep · 20 km away
26. 1.913 km WSW of Volcano, HawaiiWed, May 29, 10:56 PM HST · 15099 days ago · 8 km deep · 15 km away
27. 2.08 km NNE of P?hala, HawaiiThu, May 30, 12:59 AM HST · 15098 days ago · 9 km deep · 24 km away
28. 2.64 km SW of Volcano, HawaiiThu, May 30, 2:45 AM HST · 15098 days ago · 15 km deep · 21 km away
29. 1.56 km SW of Volcano, HawaiiThu, May 30, 6:04 AM HST · 15098 days ago · 8 km deep · 20 km away
30. 1.712 km SSE of Volcano, HawaiiThu, May 30, 9:07 AM HST · 15098 days ago · 7 km deep · 31 km away
31. 2.510 km SW of Volcano, HawaiiThu, May 30, 9:35 AM HST · 15098 days ago · 32 km deep · 21 km away
32. 2.716 km W of Volcano, HawaiiThu, May 30, 10:57 AM HST · 15098 days ago · 10 km deep · 6 km away
33. 1.614 km SE of Fern Forest, HawaiiThu, May 30, 8:45 PM HST · 15098 days ago · 6 km deep · 44 km away
34. 2.020 km N of P?hala, HawaiiFri, May 31, 8:53 AM HST · 15097 days ago · 8 km deep · 12 km away
35. 2.213 km SSW of Waikoloa, HawaiiFri, May 31, 8:56 AM HST · 15097 days ago · 34 km deep · 54 km away
36. 2.316 km W of Volcano, HawaiiFri, May 31, 7:17 PM HST · 15097 days ago · 10 km deep · 6 km away
37. 2.118 km N of P?hala, HawaiiFri, May 31, 8:38 PM HST · 15097 days ago · 7 km deep · 14 km away
38. 2.813 km W of Volcano, HawaiiSat, Jun 1, 3:53 PM HST · 15096 days ago · 9 km deep · 11 km away
39. 1.523 km N of P?hala, HawaiiSat, Jun 1, 8:05 PM HST · 15096 days ago · 6 km deep · 9 km away
40. 1.712 km S of Volcano, HawaiiSat, Jun 1, 10:15 PM HST · 15096 days ago · 5 km deep · 29 km away
41. 1.615 km SE of Fern Forest, HawaiiSun, Jun 2, 2:48 PM HST · 15095 days ago · 7 km deep · 44 km away
42. 1.812 km N of P?hala, HawaiiSun, Jun 2, 6:59 PM HST · 15095 days ago · 8 km deep · 19 km away
43. 2.616 km NNW of Wai‘?hinu, HawaiiSun, Jun 2, 11:17 PM HST · 15095 days ago · 4 km deep · 37 km away
44. 2.816 km SE of Fern Forest, HawaiiMon, Jun 3, 2:41 AM HST · 15094 days ago · 8 km deep · 46 km away
45. 1.616 km SE of Fern Forest, HawaiiMon, Jun 3, 2:43 AM HST · 15094 days ago · 6 km deep · 46 km away
46. 2.716 km SE of Fern Forest, HawaiiMon, Jun 3, 4:14 AM HST · 15094 days ago · 6 km deep · 45 km away
47. 2.05 km WNW of Kalaoa, HawaiiMon, Jun 3, 10:17 AM HST · 15094 days ago · 6 km deep · 69 km away
48. 1.511 km S of Fern Forest, HawaiiTue, Jun 4, 2:38 AM HST · 15093 days ago · 7 km deep · 37 km away
49. 2.17 km NW of P?hala, HawaiiTue, Jun 4, 3:11 AM HST · 15093 days ago · 7 km deep · 27 km away
50. 1.817 km N of P?hala, HawaiiTue, Jun 4, 5:44 AM HST · 15093 days ago · 3 km deep · 15 km away
51. 2.216 km N of P?hala, HawaiiTue, Jun 4, 7:43 AM HST · 15093 days ago · 3 km deep · 16 km away
52. 1.99 km WSW of Volcano, HawaiiWed, Jun 5, 2:51 AM HST · 15092 days ago · 5 km deep · 16 km away
53. 2.3Island of Hawaii, HawaiiWed, Jun 5, 3:10 AM HST · 15092 days ago · 45 km deep · 46 km away
54. 1.922 km N of P?hala, HawaiiWed, Jun 5, 4:18 AM HST · 15092 days ago · 8 km deep · 11 km away
55. 1.514 km S of Volcano, HawaiiWed, Jun 5, 11:55 PM HST · 15092 days ago · 6 km deep · 30 km away
56. 1.624 km N of P?hala, HawaiiWed, Jun 5, 11:59 PM HST · 15092 days ago · 7 km deep · 8 km away
57. 1.816 km S of Fern Forest, HawaiiThu, Jun 6, 2:55 PM HST · 15091 days ago · 7 km deep · 36 km away
58. 2.0Island of Hawaii, HawaiiThu, Jun 6, 4:29 PM HST · 15091 days ago · 7 km deep · 26 km away
59. 2.46 km SSE of Honaunau-Napoopoo, HawaiiThu, Jun 6, 9:13 PM HST · 15091 days ago · 10 km deep · 44 km away
60. 2.115 km SSW of Honoka‘a, HawaiiThu, Jun 6, 10:30 PM HST · 15091 days ago · 41 km deep · 54 km away

The first 60 of at least 200.

Before

1. 3.513 km N of Wai‘?hinu, HawaiiWed, May 22, 10:36 PM HST · 15106 days ago · 8 km deep · 38 km away
2. 2.217 km W of Volcano, HawaiiWed, May 22, 11:57 AM HST · 15106 days ago · 9 km deep · 6 km away
3. 3.14 km WNW of Kailua-Kona, HawaiiWed, May 22, 2:10 AM HST · 15106 days ago · 10 km deep · 65 km away
4. 2.118 km N of P?hala, HawaiiTue, May 21, 3:27 PM HST · 15107 days ago · 8 km deep · 14 km away
5. 1.8Island of Hawaii, HawaiiTue, May 21, 11:59 AM HST · 15107 days ago · 9 km deep · 31 km away
6. 1.87 km S of Leilani Estates, HawaiiTue, May 21, 4:17 AM HST · 15107 days ago · 4 km deep · 55 km away
7. 2.17 km SW of Volcano, HawaiiTue, May 21, 12:33 AM HST · 15107 days ago · 0 km deep · 19 km away
8. 2.19 km WSW of Volcano, HawaiiMon, May 20, 3:58 PM HST · 15108 days ago · 5 km deep · 15 km away
9. 2.115 km N of P?hala, HawaiiMon, May 20, 3:51 PM HST · 15108 days ago · 4 km deep · 16 km away
10. 2.514 km SSE of Fern Forest, HawaiiMon, May 20, 1:24 PM HST · 15108 days ago · 6 km deep · 40 km away
11. 2.19 km WSW of Volcano, HawaiiMon, May 20, 8:10 AM HST · 15108 days ago · 3 km deep · 15 km away
12. 1.99 km WSW of Volcano, HawaiiMon, May 20, 7:52 AM HST · 15108 days ago · 4 km deep · 15 km away
13. 2.89 km WSW of Volcano, HawaiiMon, May 20, 6:24 AM HST · 15108 days ago · 5 km deep · 15 km away
14. 2.09 km WSW of Volcano, HawaiiMon, May 20, 6:18 AM HST · 15108 days ago · 4 km deep · 15 km away
15. 1.79 km WSW of Volcano, HawaiiMon, May 20, 6:16 AM HST · 15108 days ago · 4 km deep · 15 km away
16. 1.518 km N of P?hala, HawaiiMon, May 20, 4:34 AM HST · 15108 days ago · 8 km deep · 13 km away
17. 2.415 km S of Fern Forest, HawaiiSun, May 19, 12:36 PM HST · 15109 days ago · 7 km deep · 36 km away
18. 1.716 km SW of Volcano, HawaiiSun, May 19, 6:21 AM HST · 15109 days ago · 9 km deep · 18 km away
19. 1.612 km SSE of Volcano, HawaiiSat, May 18, 2:40 AM HST · 15110 days ago · 6 km deep · 30 km away
20. 1.812 km WSW of Volcano, HawaiiFri, May 17, 11:03 PM HST · 15111 days ago · 8 km deep · 16 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19850806. Read Wed, Sep 30, 2026, 9:54 PM UTC.