Hawaii earthquakes

M2.1 earthquake 20 km SSE of Volcano, Hawaii

A magnitude 2.1 earthquake struck 20 km SSE of Volcano, Hawaii on Mon, Apr 18, 1966, 12:18 AM GMT-10 (10:18 UTC), 41 km (25 mi) below the surface.

A larger quake followed: M3.4 20 km SSE of Fern Forest, Hawaii. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (ML, local (Richter)), micro
Magnitude from
Hawaiian Volcano Observatory
Local time
UTC
1966-04-18 10:18:30 UTC
Depth
40.7 km (25.3 mi), shallow
Epicenter
19.266° N, 155.163° W
Region
Hawaii
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.0 km horizontally, 1.2 km in depth
Depth from
From location
Station coverage gap
246°, poorly surrounded by stations
Stations used
9

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 2.01 km WSW of Volcano, Hawaii · 22082 days ago · 19 km deep · 21 km away
  2. 2.39 km SSW of Volcano, Hawaii · 22081 days ago · 27 km deep · 16 km away
  3. 3.216 km SSE of Fern Forest, Hawaii · 22079 days ago · 7 km deep · 14 km away
  4. 2.216 km S of Volcano, Hawaii · 22079 days ago · 0 km deep · 7 km away
  5. 2.520 km WSW of Volcano, Hawaii · 22077 days ago · 2 km deep · 31 km away
  6. 2.821 km NNE of P?hala, Hawaii · 22077 days ago · 0 km deep · 31 km away
  7. 3.053 km SE of Naalehu, Hawaii · 22077 days ago · 10 km deep · 58 km away
  8. 2.721 km E of H?lualoa, Hawaii · 22075 days ago · 8 km deep · 75 km away
  9. 2.6Island of Hawaii, Hawaii · 22074 days ago · 29 km deep · 14 km away
  10. 2.719 km N of P?hala, Hawaii · 22074 days ago · 4 km deep · 36 km away
  11. 2.615 km S of Volcano, Hawaii · 22071 days ago · 0 km deep · 7 km away
  12. 2.425 km N of P?hala, Hawaii · 22068 days ago · -1 km deep · 41 km away
  13. 2.612 km S of Honoka‘a, Hawaii · 22068 days ago · 8 km deep · 85 km away
  14. 2.817 km N of P?hala, Hawaii · 22067 days ago · 0 km deep · 37 km away
  15. 2.610 km SSW of Volcano, Hawaii · 22065 days ago · 32 km deep · 16 km away
  16. 2.94 km ESE of Honaunau-Napoopoo, Hawaii · 22065 days ago · -1 km deep · 73 km away
  17. 2.531 km S of Fern Forest, Hawaii · 22065 days ago · 4 km deep · 11 km away
  18. 3.121 km SSE of Fern Forest, Hawaii · 22064 days ago · 6 km deep · 8 km away
  19. 3.026 km SSE of Fern Forest, Hawaii · 22063 days ago · 44 km deep · 11 km away
  20. 2.516 km S of Fern Forest, Hawaii · 22060 days ago · 5 km deep · 6 km away
  21. 2.95 km S of P?hala, Hawaii · 22059 days ago · 6 km deep · 35 km away
  22. 3.19 km SW of Volcano, Hawaii · 22059 days ago · 26 km deep · 20 km away
  23. 2.317 km W of Volcano, Hawaii · 22058 days ago · 9 km deep · 31 km away
  24. 3.05 km E of Kalaoa, Hawaii · 22058 days ago · -1 km deep · 95 km away
  25. 2.823 km E of Honaunau-Napoopoo, Hawaii · 22058 days ago · 39 km deep · 54 km away
  26. 2.619 km NNE of P?hala, Hawaii · 22058 days ago · 13 km deep · 30 km away
  27. 2.214 km SSE of Volcano, Hawaii · 22058 days ago · 0 km deep · 7 km away
  28. 2.928 km SSE of Waimea, Hawaii · 22058 days ago · 24 km deep · 72 km away
  29. 2.820 km W of Volcano, Hawaii · 22052 days ago · 10 km deep · 32 km away
  30. 2.711 km SSE of Fern Forest, Hawaii · 22051 days ago · -1 km deep · 14 km away
  31. 3.116 km W of P?hala, Hawaii · 22051 days ago · 1 km deep · 49 km away
  32. 2.524 km W of Volcano, Hawaii · 22050 days ago · 0 km deep · 36 km away
  33. 2.45 km SW of Volcano, Hawaii · 22049 days ago · 17 km deep · 20 km away
  34. 2.79 km SW of Volcano, Hawaii · 22049 days ago · 30 km deep · 19 km away
  35. 3.07 km SW of Volcano, Hawaii · 22049 days ago · 30 km deep · 19 km away
  36. 3.18 km WSW of Volcano, Hawaii · 22049 days ago · 33 km deep · 21 km away
  37. 2.519 km SSE of Volcano, Hawaii · 22049 days ago · 9 km deep · 1 km away
  38. 2.419 km S of Volcano, Hawaii · 22046 days ago · 11 km deep · 6 km away
  39. 2.716 km S of Fern Forest, Hawaii · 22045 days ago · 2 km deep · 7 km away
  40. 2.46 km S of Volcano, Hawaii · 22045 days ago · 28 km deep · 15 km away
  41. 3.420 km SSE of Fern Forest, Hawaii · 22043 days ago · 46 km deep · 11 km away
  42. 2.512 km S of Fern Forest, Hawaii · 22041 days ago · 6 km deep · 11 km away
  43. 2.418 km N of P?hala, Hawaii · 22040 days ago · 50 km deep · 35 km away
  44. 3.16 km SW of Volcano, Hawaii · 22037 days ago · 1 km deep · 19 km away
  45. 2.721 km W of Volcano, Hawaii · 22036 days ago · 9 km deep · 35 km away
  46. 2.415 km SSW of Leilani Estates, Hawaii · 22034 days ago · 12 km deep · 21 km away
  47. 2.419 km NNE of P?hala, Hawaii · 22034 days ago · 2 km deep · 28 km away
  48. 3.023 km W of Wainaku, Hawaii · 22033 days ago · 34 km deep · 55 km away
  49. 2.810 km SSW of Volcano, Hawaii · 22033 days ago · 30 km deep · 16 km away
  50. 2.616 km SSE of Fern Forest, Hawaii · 22033 days ago · 7 km deep · 10 km away
  51. 2.88 km SE of Waikoloa, Hawaii · 22028 days ago · 8 km deep · 91 km away
  52. 2.526 km SSE of Fern Forest, Hawaii · 22027 days ago · 2 km deep · 14 km away
  53. 2.59 km SSW of Fern Forest, Hawaii · 22027 days ago · 4 km deep · 13 km away
  54. 2.310 km SSE of Volcano, Hawaii · 22026 days ago · 0 km deep · 11 km away
  55. 2.629 km S of Volcano, Hawaii · 22025 days ago · 30 km deep · 10 km away
  56. 2.625 km W of Volcano, Hawaii · 22023 days ago · 6 km deep · 38 km away

Before

  1. 2.53 km SW of Volcano, Hawaii · 22088 days ago · 26 km deep · 19 km away
  2. 2.417 km S of Fern Forest, Hawaii · 22088 days ago · 5 km deep · 6 km away
  3. 2.317 km NNE of P?hala, Hawaii · 22088 days ago · 7 km deep · 30 km away
  4. 2.315 km SSW of Pa‘auilo, Hawaii · 22088 days ago · 12 km deep · 77 km away
  5. 2.329 km SSW of Laup?hoehoe, Hawaii · 22089 days ago · 16 km deep · 60 km away
  6. 2.618 km SW of Volcano, Hawaii · 22090 days ago · 27 km deep · 19 km away
  7. 3.411 km WSW of Volcano, Hawaii · 22090 days ago · 29 km deep · 22 km away
  8. 2.620 km WSW of Volcano, Hawaii · 22090 days ago · 8 km deep · 30 km away
  9. 2.415 km S of Volcano, Hawaii · 22091 days ago · 0 km deep · 7 km away
  10. 2.613 km SSE of Volcano, Hawaii · 22094 days ago · 0 km deep · 7 km away
  11. 3.321 km WSW of Volcano, Hawaii · 22095 days ago · 0 km deep · 32 km away
  12. 2.622 km NNW of P?hala, Hawaii · 22095 days ago · 3 km deep · 42 km away
  13. 2.430 km WNW of Volcano, Hawaii · 22095 days ago · 10 km deep · 47 km away
  14. 2.512 km W of Volcano, Hawaii · 22096 days ago · 0 km deep · 29 km away
  15. 3.58 km SSW of Volcano, Hawaii · 22098 days ago · 28 km deep · 16 km away
  16. 2.64 km WNW of P?hala, Hawaii · 22098 days ago · 31 km deep · 38 km away
  17. 2.912 km NNE of Hawaiian Ocean View, Hawaii · 22101 days ago · 5 km deep · 60 km away
  18. 3.219 km WSW of Volcano, Hawaii · 22101 days ago · 7 km deep · 28 km away
  19. 2.96 km NE of Honalo, Hawaii · 22103 days ago · 1 km deep · 84 km away
  20. 2.620 km NNE of P?hala, Hawaii · 22110 days ago · 3 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19660129. Read Fri, Oct 2, 2026, 7:17 PM UTC.