M1.8 earthquake 16 km S of Volcano, Hawaii

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Mon, Jul 20, 1981, 2:41 AM HST

UTC

1981-07-20 12:41:30 UTC

Depth

3.0 km (1.8 mi), shallow

Epicenter

19.297° N, 155.248° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

110°

Stations used

25

• Volcano, HawaiiPopulation 2,575. Forecast16 kmS
• Hawaiian Paradise Park, HawaiiPopulation 11,404. Forecast44 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast352 kmSE

After

1. 2.412 km SSE of Volcano, HawaiiMon, Jul 20, 5:14 AM HST · 16509 days ago · 8 km deep · 8 km away
2. 3.913 km S of Volcano, HawaiiMon, Jul 20, 6:12 AM HST · 16509 days ago · 9 km deep · 5 km away
3. 2.411 km S of Volcano, HawaiiMon, Jul 20, 7:02 AM HST · 16509 days ago · 8 km deep · 6 km away
4. 2.911 km S of Volcano, HawaiiMon, Jul 20, 7:08 AM HST · 16509 days ago · 8 km deep · 6 km away
5. 2.19 km SSE of Volcano, HawaiiMon, Jul 20, 8:14 AM HST · 16509 days ago · 8 km deep · 8 km away
6. 2.47 km SW of Volcano, HawaiiMon, Jul 20, 8:43 AM HST · 16509 days ago · 2 km deep · 10 km away
7. 2.17 km SW of Volcano, HawaiiMon, Jul 20, 8:48 AM HST · 16509 days ago · 2 km deep · 11 km away
8. 2.710 km S of Volcano, HawaiiMon, Jul 20, 9:22 AM HST · 16509 days ago · 7 km deep · 6 km away
9. 2.18 km SW of Volcano, HawaiiMon, Jul 20, 1:05 PM HST · 16508 days ago · 2 km deep · 10 km away
10. 2.112 km SSE of Volcano, HawaiiMon, Jul 20, 3:54 PM HST · 16508 days ago · 7 km deep · 6 km away
11. 2.5Island of Hawaii, HawaiiMon, Jul 20, 7:56 PM HST · 16508 days ago · 2 km deep · 11 km away
12. 1.99 km SSW of Volcano, HawaiiMon, Jul 20, 8:50 PM HST · 16508 days ago · 2 km deep · 9 km away
13. 2.58 km SW of Volcano, HawaiiMon, Jul 20, 10:58 PM HST · 16508 days ago · 2 km deep · 10 km away
14. 1.97 km SW of Volcano, HawaiiMon, Jul 20, 11:18 PM HST · 16508 days ago · 2 km deep · 10 km away
15. 2.47 km SW of Volcano, HawaiiTue, Jul 21, 1:39 AM HST · 16508 days ago · 2 km deep · 11 km away
16. 2.77 km SW of Volcano, HawaiiTue, Jul 21, 3:18 AM HST · 16508 days ago · 1 km deep · 11 km away
17. 2.17 km SW of Volcano, HawaiiTue, Jul 21, 5:39 AM HST · 16508 days ago · 2 km deep · 12 km away
18. 2.47 km SW of Volcano, HawaiiTue, Jul 21, 6:51 AM HST · 16508 days ago · 2 km deep · 10 km away
19. 2.17 km SW of Volcano, HawaiiTue, Jul 21, 7:43 AM HST · 16508 days ago · 2 km deep · 10 km away
20. 2.77 km SW of Volcano, HawaiiTue, Jul 21, 7:52 AM HST · 16508 days ago · 2 km deep · 10 km away
21. 4.06 km NNE of P?hala, HawaiiTue, Jul 21, 7:59 AM HST · 16508 days ago · 10 km deep · 22 km away
22. 2.27 km SW of Volcano, HawaiiTue, Jul 21, 1:13 PM HST · 16507 days ago · 2 km deep · 11 km away
23. 2.914 km S of Fern Forest, HawaiiWed, Jul 22, 6:10 AM HST · 16507 days ago · 8 km deep · 13 km away
24. 2.5Island of Hawaii, HawaiiWed, Jul 22, 8:33 AM HST · 16507 days ago · 2 km deep · 12 km away
25. 1.913 km SSE of Volcano, HawaiiWed, Jul 22, 4:17 PM HST · 16506 days ago · 5 km deep · 5 km away
26. 2.47 km SW of Volcano, HawaiiWed, Jul 22, 7:06 PM HST · 16506 days ago · 2 km deep · 10 km away
27. 1.712 km SSE of Volcano, HawaiiWed, Jul 22, 10:42 PM HST · 16506 days ago · 8 km deep · 9 km away
28. 2.17 km SW of Volcano, HawaiiWed, Jul 22, 10:56 PM HST · 16506 days ago · 2 km deep · 11 km away
29. 3.041 km SE of P?hala, HawaiiThu, Jul 23, 1:38 AM HST · 16506 days ago · 45 km deep · 39 km away
30. 2.18 km SW of Volcano, HawaiiThu, Jul 23, 2:26 AM HST · 16506 days ago · 2 km deep · 10 km away
31. 2.213 km SSW of Volcano, HawaiiThu, Jul 23, 3:44 AM HST · 16506 days ago · 7 km deep · 4 km away
32. 2.114 km SSE of Fern Forest, HawaiiThu, Jul 23, 5:47 AM HST · 16506 days ago · 5 km deep · 16 km away
33. 2.014 km S of Volcano, HawaiiThu, Jul 23, 6:50 AM HST · 16506 days ago · 6 km deep · 4 km away
34. 2.612 km SSE of Volcano, HawaiiThu, Jul 23, 1:22 PM HST · 16505 days ago · 6 km deep · 6 km away
35. 2.66 km WSW of Volcano, HawaiiThu, Jul 23, 6:27 PM HST · 16505 days ago · 0 km deep · 14 km away
36. 2.720 km WSW of Volcano, HawaiiThu, Jul 23, 8:22 PM HST · 16505 days ago · 8 km deep · 21 km away
37. 2.215 km S of Fern Forest, HawaiiThu, Jul 23, 11:44 PM HST · 16505 days ago · 8 km deep · 12 km away
38. 2.76 km WSW of Volcano, HawaiiFri, Jul 24, 8:24 AM HST · 16505 days ago · 0 km deep · 13 km away
39. 2.921 km N of P?hala, HawaiiFri, Jul 24, 11:37 AM HST · 16504 days ago · 8 km deep · 26 km away
40. 1.620 km N of P?hala, HawaiiFri, Jul 24, 11:42 AM HST · 16504 days ago · 7 km deep · 26 km away
41. 2.55 km SW of Volcano, HawaiiFri, Jul 24, 4:24 PM HST · 16504 days ago · 0 km deep · 12 km away
42. 2.113 km SSE of Fern Forest, HawaiiFri, Jul 24, 8:04 PM HST · 16504 days ago · 6 km deep · 17 km away
43. 2.65 km WSW of Volcano, HawaiiFri, Jul 24, 8:40 PM HST · 16504 days ago · 0 km deep · 14 km away
44. 2.45 km SW of Volcano, HawaiiFri, Jul 24, 11:04 PM HST · 16504 days ago · 0 km deep · 12 km away
45. 2.04 km SW of Volcano, HawaiiSat, Jul 25, 12:04 AM HST · 16504 days ago · 2 km deep · 13 km away
46. 2.55 km SW of Volcano, HawaiiSat, Jul 25, 12:57 AM HST · 16504 days ago · 0 km deep · 12 km away
47. 1.87 km SW of Volcano, HawaiiSat, Jul 25, 3:23 AM HST · 16504 days ago · 2 km deep · 11 km away
48. 1.57 km SW of Volcano, HawaiiSat, Jul 25, 3:24 AM HST · 16504 days ago · 2 km deep · 11 km away
49. 1.69 km SSW of Volcano, HawaiiSat, Jul 25, 4:33 AM HST · 16504 days ago · 2 km deep · 9 km away
50. 1.6Island of Hawaii, HawaiiSat, Jul 25, 8:07 AM HST · 16504 days ago · 7 km deep · 6 km away
51. 2.38 km SW of Volcano, HawaiiSat, Jul 25, 2:09 PM HST · 16503 days ago · 2 km deep · 10 km away
52. 2.48 km SW of Volcano, HawaiiSat, Jul 25, 2:15 PM HST · 16503 days ago · 2 km deep · 10 km away
53. 1.911 km S of Volcano, HawaiiSat, Jul 25, 2:32 PM HST · 16503 days ago · 7 km deep · 6 km away
54. 1.58 km SW of Volcano, HawaiiSat, Jul 25, 3:58 PM HST · 16503 days ago · 1 km deep · 10 km away
55. 2.08 km SW of Volcano, HawaiiSat, Jul 25, 4:48 PM HST · 16503 days ago · 2 km deep · 10 km away
56. 2.743 km SE of P?hala, HawaiiSat, Jul 25, 7:40 PM HST · 16503 days ago · 36 km deep · 41 km away
57. 2.45 km SW of Volcano, HawaiiSun, Jul 26, 12:47 AM HST · 16503 days ago · 0 km deep · 12 km away
58. 2.26 km WSW of Volcano, HawaiiSun, Jul 26, 3:11 AM HST · 16503 days ago · 0 km deep · 13 km away
59. 2.48 km SW of Volcano, HawaiiSun, Jul 26, 7:40 AM HST · 16503 days ago · 2 km deep · 10 km away
60. 1.615 km SSE of Volcano, HawaiiSun, Jul 26, 7:43 AM HST · 16503 days ago · 8 km deep · 10 km away

The first 60 of at least 201.

Before

1. 2.721 km N of P?hala, HawaiiMon, Jul 20, 2:13 AM HST · 16509 days ago · 6 km deep · 24 km away
2. 1.96 km S of Volcano, HawaiiSun, Jul 19, 8:25 PM HST · 16509 days ago · 0 km deep · 10 km away
3. 2.07 km SW of Volcano, HawaiiSun, Jul 19, 5:56 PM HST · 16509 days ago · 2 km deep · 11 km away
4. 2.17 km SW of Volcano, HawaiiSun, Jul 19, 5:43 PM HST · 16509 days ago · 2 km deep · 11 km away
5. 2.112 km SSE of Volcano, HawaiiSun, Jul 19, 4:38 AM HST · 16510 days ago · 7 km deep · 7 km away
6. 1.97 km SW of Volcano, HawaiiSat, Jul 18, 8:31 PM HST · 16510 days ago · 2 km deep · 11 km away
7. 1.913 km S of Volcano, HawaiiSat, Jul 18, 8:16 PM HST · 16510 days ago · 6 km deep · 4 km away
8. 2.68 km SSW of Volcano, HawaiiSat, Jul 18, 6:07 PM HST · 16510 days ago · 2 km deep · 9 km away
9. 2.015 km SSE of Volcano, HawaiiSat, Jul 18, 4:03 PM HST · 16510 days ago · 8 km deep · 9 km away
10. 2.97 km SW of Volcano, HawaiiSat, Jul 18, 2:41 PM HST · 16510 days ago · 2 km deep · 10 km away
11. 2.67 km SW of Volcano, HawaiiSat, Jul 18, 2:35 PM HST · 16510 days ago · 2 km deep · 11 km away
12. 2.87 km SW of Volcano, HawaiiSat, Jul 18, 9:31 AM HST · 16511 days ago · 2 km deep · 11 km away
13. 2.013 km SSE of Volcano, HawaiiSat, Jul 18, 3:38 AM HST · 16511 days ago · 7 km deep · 6 km away
14. 2.56 km SSW of Volcano, HawaiiSat, Jul 18, 2:28 AM HST · 16511 days ago · 2 km deep · 11 km away
15. 2.53 km E of Pāhala, HISat, Jul 18, 2:02 AM HST · 16511 days ago · 7 km deep · 24 km away
16. 2.37 km SW of Volcano, HawaiiSat, Jul 18, 1:14 AM HST · 16511 days ago · 2 km deep · 11 km away
17. 1.912 km SSE of Volcano, HawaiiSat, Jul 18, 12:08 AM HST · 16511 days ago · 6 km deep · 5 km away
18. 2.412 km SSE of Volcano, HawaiiFri, Jul 17, 11:30 PM HST · 16511 days ago · 7 km deep · 7 km away
19. 3.15 km WSW of Volcano, HawaiiFri, Jul 17, 10:52 PM HST · 16511 days ago · 0 km deep · 14 km away
20. 2.113 km SE of Fern Forest, HawaiiFri, Jul 17, 10:29 PM HST · 16511 days ago · 6 km deep · 23 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19812362. Read Thu, Oct 1, 2026, 7:48 AM UTC.