Hawaii earthquakes

M2.5 earthquake 20 km WSW of Volcano, Hawaii

A magnitude 2.5 earthquake struck 20 km WSW of Volcano, Hawaii on Sat, Apr 23, 1966, 3:15 PM GMT-10 (01:15 UTC), 2 km (2 mi) below the surface.

A larger quake followed: M2.8 21 km NNE of P?hala, Hawaii. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.5 (ml), micro
Local time
UTC
1966-04-24 01:15:43 UTC
Depth
2.5 km (1.5 mi), shallow
Epicenter
19.388° N, 155.425° 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 0.7 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
140°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 2.821 km NNE of P?hala, Hawaii · 22066 days ago · 0 km deep · 1 km away
  2. 3.053 km SE of Naalehu, Hawaii · 22066 days ago · 10 km deep · 75 km away
  3. 2.721 km E of H?lualoa, Hawaii · 22065 days ago · 8 km deep · 45 km away
  4. 2.6Island of Hawaii, Hawaii · 22064 days ago · 29 km deep · 18 km away
  5. 2.719 km N of P?hala, Hawaii · 22064 days ago · 4 km deep · 7 km away
  6. 2.615 km S of Volcano, Hawaii · 22061 days ago · 0 km deep · 24 km away
  7. 2.425 km N of P?hala, Hawaii · 22057 days ago · -1 km deep · 10 km away
  8. 2.612 km S of Honoka‘a, Hawaii · 22057 days ago · 8 km deep · 65 km away
  9. 2.817 km N of P?hala, Hawaii · 22057 days ago · 0 km deep · 8 km away
  10. 2.610 km SSW of Volcano, Hawaii · 22055 days ago · 32 km deep · 16 km away
  11. 2.94 km ESE of Honaunau-Napoopoo, Hawaii · 22054 days ago · -1 km deep · 43 km away
  12. 2.531 km S of Fern Forest, Hawaii · 22054 days ago · 4 km deep · 41 km away
  13. 3.121 km SSE of Fern Forest, Hawaii · 22053 days ago · 6 km deep · 37 km away
  14. 3.026 km SSE of Fern Forest, Hawaii · 22053 days ago · 44 km deep · 41 km away
  15. 2.516 km S of Fern Forest, Hawaii · 22049 days ago · 5 km deep · 30 km away
  16. 2.95 km S of P?hala, Hawaii · 22049 days ago · 6 km deep · 27 km away
  17. 3.19 km SW of Volcano, Hawaii · 22049 days ago · 26 km deep · 12 km away
  18. 2.317 km W of Volcano, Hawaii · 22048 days ago · 9 km deep · 6 km away
  19. 3.05 km E of Kalaoa, Hawaii · 22048 days ago · -1 km deep · 65 km away
  20. 2.823 km E of Honaunau-Napoopoo, Hawaii · 22048 days ago · 39 km deep · 24 km away
  21. 2.619 km NNE of P?hala, Hawaii · 22048 days ago · 13 km deep · 2 km away
  22. 2.214 km SSE of Volcano, Hawaii · 22047 days ago · 0 km deep · 25 km away
  23. 2.928 km SSE of Waimea, Hawaii · 22047 days ago · 24 km deep · 47 km away
  24. 2.820 km W of Volcano, Hawaii · 22042 days ago · 10 km deep · 2 km away
  25. 2.711 km SSE of Fern Forest, Hawaii · 22041 days ago · -1 km deep · 34 km away
  26. 3.116 km W of P?hala, Hawaii · 22041 days ago · 1 km deep · 28 km away
  27. 2.524 km W of Volcano, Hawaii · 22039 days ago · 0 km deep · 6 km away
  28. 2.45 km SW of Volcano, Hawaii · 22039 days ago · 17 km deep · 16 km away
  29. 2.79 km SW of Volcano, Hawaii · 22039 days ago · 30 km deep · 14 km away
  30. 3.07 km SW of Volcano, Hawaii · 22039 days ago · 30 km deep · 14 km away
  31. 3.18 km WSW of Volcano, Hawaii · 22039 days ago · 33 km deep · 13 km away
  32. 2.519 km SSE of Volcano, Hawaii · 22038 days ago · 9 km deep · 30 km away
  33. 2.419 km S of Volcano, Hawaii · 22036 days ago · 11 km deep · 25 km away
  34. 2.716 km S of Fern Forest, Hawaii · 22035 days ago · 2 km deep · 33 km away
  35. 2.46 km S of Volcano, Hawaii · 22035 days ago · 28 km deep · 20 km away
  36. 3.420 km SSE of Fern Forest, Hawaii · 22033 days ago · 46 km deep · 40 km away
  37. 2.88 km NW of Kalaoa, Hawaii · 22031 days ago · 4 km deep · 78 km away
  38. 2.512 km S of Fern Forest, Hawaii · 22031 days ago · 6 km deep · 32 km away
  39. 2.418 km N of P?hala, Hawaii · 22030 days ago · 50 km deep · 6 km away
  40. 3.16 km SW of Volcano, Hawaii · 22026 days ago · 1 km deep · 16 km away
  41. 2.721 km W of Volcano, Hawaii · 22025 days ago · 9 km deep · 6 km away
  42. 2.415 km SSW of Leilani Estates, Hawaii · 22024 days ago · 12 km deep · 47 km away
  43. 2.419 km NNE of P?hala, Hawaii · 22024 days ago · 2 km deep · 3 km away
  44. 3.023 km W of Wainaku, Hawaii · 22023 days ago · 34 km deep · 41 km away
  45. 2.810 km SSW of Volcano, Hawaii · 22023 days ago · 30 km deep · 16 km away
  46. 2.616 km SSE of Fern Forest, Hawaii · 22022 days ago · 7 km deep · 36 km away
  47. 2.88 km SE of Waikoloa, Hawaii · 22017 days ago · 8 km deep · 64 km away
  48. 2.526 km SSE of Fern Forest, Hawaii · 22017 days ago · 2 km deep · 44 km away
  49. 2.59 km SSW of Fern Forest, Hawaii · 22016 days ago · 4 km deep · 28 km away
  50. 2.310 km SSE of Volcano, Hawaii · 22016 days ago · 0 km deep · 23 km away
  51. 2.629 km S of Volcano, Hawaii · 22014 days ago · 30 km deep · 34 km away
  52. 2.625 km W of Volcano, Hawaii · 22013 days ago · 6 km deep · 8 km away
  53. 2.715 km SSW of Volcano, Hawaii · 22012 days ago · 30 km deep · 16 km away
  54. 3.0Island of Hawaii, Hawaii · 22011 days ago · 43 km deep · 50 km away
  55. 2.617 km NNE of P?hala, Hawaii · 22011 days ago · 3 km deep · 4 km away
  56. 2.716 km SW of Volcano, Hawaii · 22011 days ago · 4 km deep · 13 km away
  57. 3.415 km SE of Honaunau-Napoopoo, Hawaii · 22010 days ago · 2 km deep · 36 km away
  58. 2.913 km NNE of Puako, Hawaii · 22009 days ago · 17 km deep · 88 km away
  59. 2.515 km SSW of H?w?, Hawaii · 22009 days ago · 19 km deep · 94 km away
  60. 2.54 km ENE of P?hala, Hawaii · 22009 days ago · 7 km deep · 20 km away

The first 60 of 61.

Before

  1. 2.216 km S of Volcano, Hawaii · 22069 days ago · 0 km deep · 23 km away
  2. 3.216 km SSE of Fern Forest, Hawaii · 22069 days ago · 7 km deep · 39 km away
  3. 2.39 km SSW of Volcano, Hawaii · 22071 days ago · 27 km deep · 16 km away
  4. 2.01 km WSW of Volcano, Hawaii · 22071 days ago · 19 km deep · 19 km away
  5. 2.120 km SSE of Volcano, Hawaii · 22072 days ago · 41 km deep · 31 km away
  6. 2.53 km SW of Volcano, Hawaii · 22077 days ago · 26 km deep · 18 km away
  7. 2.417 km S of Fern Forest, Hawaii · 22078 days ago · 5 km deep · 32 km away
  8. 2.317 km NNE of P?hala, Hawaii · 22078 days ago · 7 km deep · 4 km away
  9. 2.315 km SSW of Pa‘auilo, Hawaii · 22078 days ago · 12 km deep · 59 km away
  10. 2.329 km SSW of Laup?hoehoe, Hawaii · 22078 days ago · 16 km deep · 42 km away
  11. 2.618 km SW of Volcano, Hawaii · 22079 days ago · 27 km deep · 13 km away
  12. 3.411 km WSW of Volcano, Hawaii · 22079 days ago · 29 km deep · 11 km away
  13. 2.620 km WSW of Volcano, Hawaii · 22080 days ago · 8 km deep · 1 km away
  14. 2.415 km S of Volcano, Hawaii · 22080 days ago · 0 km deep · 24 km away
  15. 2.613 km SSE of Volcano, Hawaii · 22084 days ago · 0 km deep · 25 km away
  16. 3.321 km WSW of Volcano, Hawaii · 22085 days ago · 0 km deep · 1 km away
  17. 2.622 km NNW of P?hala, Hawaii · 22085 days ago · 3 km deep · 12 km away
  18. 2.430 km WNW of Volcano, Hawaii · 22085 days ago · 10 km deep · 20 km away
  19. 2.512 km W of Volcano, Hawaii · 22085 days ago · 0 km deep · 11 km away
  20. 3.58 km SSW of Volcano, Hawaii · 22088 days ago · 28 km deep · 17 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19660134. Read Tue, Sep 22, 2026, 9:15 AM UTC.