Hawaii earthquakes

M1.7 earthquake 15 km SSE of Volcano, Hawaii

A magnitude 1.7 earthquake struck 15 km SSE of Volcano, Hawaii on Wed, Aug 21, 1985, 2:45 PM HST (00:45 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M4.2 26 km SW of Captain Cook, 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
1.7 (ML, local (Richter)), micro
Magnitude from
Hawaiian Volcano Observatory
Local time
UTC
1985-08-22 00:45:46 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
19.319° N, 155.169° 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 0.6 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
104°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 111 in the 30 days before it.

After

  1. 4.226 km SW of Captain Cook, Hawaii · 15015 days ago · 38 km deep · 94 km away
  2. 2.113 km SSE of Volcano, Hawaii · 15015 days ago · 7 km deep · 4 km away
  3. 2.114 km S of Volcano, Hawaii · 15014 days ago · 8 km deep · 5 km away
  4. 2.414 km S of Volcano, Hawaii · 15014 days ago · 8 km deep · 5 km away
  5. 1.911 km SSE of Volcano, Hawaii · 15014 days ago · 7 km deep · 4 km away
  6. 2.49 km WSW of Laup?hoehoe, Hawaii · 15014 days ago · 26 km deep · 71 km away
  7. 2.136 km ESE of Naalehu, Hawaii · 15014 days ago · 13 km deep · 47 km away
  8. 2.124 km WNW of Volcano, Hawaii · 15013 days ago · 4 km deep · 36 km away
  9. 1.938 km ESE of Naalehu, Hawaii · 15012 days ago · 11 km deep · 47 km away
  10. 2.219 km N of P?hala, Hawaii · 15012 days ago · 9 km deep · 30 km away
  11. 2.59 km N of Naalehu, Hawaii · 15012 days ago · 7 km deep · 47 km away
  12. 1.712 km SSE of Volcano, Hawaii · 15012 days ago · 7 km deep · 3 km away
  13. 2.912 km SSE of Volcano, Hawaii · 15012 days ago · 7 km deep · 4 km away
  14. 1.612 km SSE of Fern Forest, Hawaii · 15012 days ago · 6 km deep · 12 km away
  15. 2.013 km NE of P?hala, Hawaii · 15012 days ago · 4 km deep · 22 km away
  16. 2.612 km SSE of Volcano, Hawaii · 15012 days ago · 7 km deep · 2 km away
  17. 1.515 km S of Volcano, Hawaii · 15012 days ago · 7 km deep · 6 km away
  18. 1.937 km ESE of Naalehu, Hawaii · 15011 days ago · 11 km deep · 47 km away
  19. 1.834 km SE of P?hala, Hawaii · 15011 days ago · 12 km deep · 40 km away
  20. 1.815 km SSE of Volcano, Hawaii · 15011 days ago · 6 km deep · 1 km away
  21. 2.29 km WSW of Volcano, Hawaii · 15011 days ago · 4 km deep · 19 km away
  22. 2.314 km S of Fern Forest, Hawaii · 15011 days ago · 8 km deep · 5 km away
  23. 1.513 km SSE of Fern Forest, Hawaii · 15010 days ago · 7 km deep · 8 km away
  24. 2.20 km NW of Volcano, Hawaii · 15010 days ago · 31 km deep · 16 km away
  25. 2.310 km WSW of Volcano, Hawaii · 15010 days ago · 6 km deep · 20 km away
  26. 2.436 km ESE of Naalehu, Hawaii · 15010 days ago · 13 km deep · 47 km away
  27. 1.616 km SE of Fern Forest, Hawaii · 15010 days ago · 7 km deep · 14 km away
  28. 1.810 km N of Wai‘?hinu, Hawaii · 15010 days ago · 27 km deep · 50 km away
  29. 1.515 km S of Fern Forest, Hawaii · 15009 days ago · 5 km deep · 3 km away
  30. 1.512 km ENE of P?hala, Hawaii · 15009 days ago · 7 km deep · 22 km away
  31. 1.813 km S of Fern Forest, Hawaii · 15009 days ago · 6 km deep · 7 km away
  32. 2.725 km SSE of Fern Forest, Hawaii · 15008 days ago · 47 km deep · 13 km away
  33. 1.715 km S of Fern Forest, Hawaii · 15008 days ago · 7 km deep · 4 km away
  34. 2.111 km SSE of Volcano, Hawaii · 15007 days ago · 7 km deep · 5 km away
  35. 2.418 km N of P?hala, Hawaii · 15007 days ago · 5 km deep · 31 km away
  36. 2.117 km N of P?hala, Hawaii · 15007 days ago · 8 km deep · 35 km away
  37. 2.36 km SSW of Volcano, Hawaii · 15007 days ago · 2 km deep · 12 km away
  38. 2.15 km SSW of Volcano, Hawaii · 15007 days ago · 2 km deep · 13 km away
  39. 1.7Island of Hawaii, Hawaii · 15006 days ago · 6 km deep · 4 km away
  40. 2.2Hawaii region, Hawaii · 15006 days ago · 7 km deep · 23 km away
  41. 1.615 km S of Fern Forest, Hawaii · 15006 days ago · 7 km deep · 4 km away
  42. 1.517 km N of P?hala, Hawaii · 15006 days ago · 8 km deep · 33 km away
  43. 2.78 km WSW of Volcano, Hawaii · 15006 days ago · 5 km deep · 19 km away
  44. 2.09 km WSW of Volcano, Hawaii · 15006 days ago · 5 km deep · 19 km away
  45. 1.512 km SSE of Fern Forest, Hawaii · 15006 days ago · 7 km deep · 8 km away
  46. 1.61 km SSW of Honoka‘a, Hawaii · 15006 days ago · 46 km deep · 89 km away
  47. 1.721 km W of Volcano, Hawaii · 15006 days ago · 2 km deep · 31 km away
  48. 1.517 km S of Volcano, Hawaii · 15006 days ago · 5 km deep · 9 km away
  49. 1.614 km SE of Fern Forest, Hawaii · 15005 days ago · 6 km deep · 14 km away
  50. 1.618 km N of P?hala, Hawaii · 15005 days ago · 8 km deep · 35 km away
  51. 2.26 km WSW of P?hala, Hawaii · 15005 days ago · 11 km deep · 41 km away
  52. 1.937 km ESE of Naalehu, Hawaii · 15005 days ago · 13 km deep · 47 km away
  53. 1.727 km W of Volcano, Hawaii · 15004 days ago · 7 km deep · 37 km away
  54. 1.827 km W of Volcano, Hawaii · 15004 days ago · 6 km deep · 37 km away
  55. 2.137 km ESE of Naalehu, Hawaii · 15004 days ago · 11 km deep · 45 km away
  56. 1.925 km W of Volcano, Hawaii · 15004 days ago · 7 km deep · 35 km away
  57. 3.413 km S of Volcano, Hawaii · 15003 days ago · 9 km deep · 6 km away
  58. 2.521 km NW of Volcano, Hawaii · 15003 days ago · 6 km deep · 36 km away
  59. 1.65 km SW of Volcano, Hawaii · 15003 days ago · 2 km deep · 14 km away
  60. 3.140 km ESE of Naalehu, Hawaii · 15003 days ago · 13 km deep · 51 km away

The first 60 of 197.

Before

  1. 1.712 km SSE of Volcano, Hawaii · 15016 days ago · 8 km deep · 3 km away
  2. 2.014 km S of Fern Forest, Hawaii · 15016 days ago · 7 km deep · 5 km away
  3. 2.4Island of Hawaii, Hawaii · 15016 days ago · 7 km deep · 3 km away
  4. 2.143 km SE of Naalehu, Hawaii · 15016 days ago · 11 km deep · 57 km away
  5. 1.711 km SSE of Volcano, Hawaii · 15017 days ago · 6 km deep · 5 km away
  6. 1.914 km SSE of Volcano, Hawaii · 15017 days ago · 7 km deep · 3 km away
  7. 2.613 km ENE of P?hala, Hawaii · 15017 days ago · 7 km deep · 21 km away
  8. 2.110 km NW of P?hala, Hawaii · 15018 days ago · 6 km deep · 42 km away
  9. 2.16 km NNW of P?hala, Hawaii · 15018 days ago · 8 km deep · 35 km away
  10. 2.113 km W of Volcano, Hawaii · 15018 days ago · 8 km deep · 24 km away
  11. 1.921 km NNE of P?hala, Hawaii · 15019 days ago · 9 km deep · 29 km away
  12. 1.812 km SSE of Fern Forest, Hawaii · 15019 days ago · 7 km deep · 9 km away
  13. 2.226 km W of Volcano, Hawaii · 15019 days ago · 8 km deep · 36 km away
  14. 2.042 km ESE of Naalehu, Hawaii · 15019 days ago · 12 km deep · 52 km away
  15. 2.118 km S of Volcano, Hawaii · 15019 days ago · 9 km deep · 10 km away
  16. 1.75 km S of Honoka‘a, Hawaii · 15020 days ago · 10 km deep · 85 km away
  17. 2.09 km N of Naalehu, Hawaii · 15020 days ago · 8 km deep · 47 km away
  18. 1.824 km W of Volcano, Hawaii · 15021 days ago · 7 km deep · 35 km away
  19. 1.513 km SSE of Fern Forest, Hawaii · 15021 days ago · 5 km deep · 7 km away
  20. 2.410 km N of Naalehu, Hawaii · 15021 days ago · 7 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19851301. Read Thu, Oct 1, 2026, 4:20 PM UTC.