Hawaii earthquakes

M1.7 earthquake 18 km SSW of Volcano, Hawaii

A magnitude 1.7 earthquake struck 18 km SSW of Volcano, Hawaii on Fri, Sep 18, 1987, 7:46 PM HST (05:46 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.8 18 km SSE of Honaunau-Napoopoo, 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
1987-09-19 05:46:05 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
19.283° N, 155.268° 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, 0.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
158°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 85 in the 30 days before it.

After

  1. 3.818 km SSE of Honaunau-Napoopoo, Hawaii · 14257 days ago · 9 km deep · 56 km away
  2. 2.412 km SSE of Volcano, Hawaii · 14257 days ago · 9 km deep · 9 km away
  3. 2.15 km NNW of P?hala, Hawaii · 14257 days ago · 11 km deep · 24 km away
  4. 3.0Island of Hawaii, Hawaii · 14257 days ago · 9 km deep · 9 km away
  5. 3.08 km ESE of Waikoloa, Hawaii · 14257 days ago · 15 km deep · 85 km away
  6. 3.213 km S of Fern Forest, Hawaii · 14257 days ago · 8 km deep · 16 km away
  7. 2.78 km NNE of P?hala, Hawaii · 14256 days ago · 8 km deep · 19 km away
  8. 1.715 km SSE of Fern Forest, Hawaii · 14256 days ago · 7 km deep · 18 km away
  9. 2.37 km WNW of Kalaoa, Hawaii · 14256 days ago · 12 km deep · 97 km away
  10. 1.516 km S of Fern Forest, Hawaii · 14255 days ago · 7 km deep · 17 km away
  11. 1.918 km SSE of Honaunau-Napoopoo, Hawaii · 14255 days ago · 10 km deep · 56 km away
  12. 2.424 km W of Volcano, Hawaii · 14255 days ago · 8 km deep · 27 km away
  13. 2.025 km N of P?hala, Hawaii · 14254 days ago · 7 km deep · 28 km away
  14. 2.025 km N of P?hala, Hawaii · 14254 days ago · 6 km deep · 28 km away
  15. 3.17 km E of H?lualoa, Hawaii · 14254 days ago · 29 km deep · 74 km away
  16. 2.025 km N of P?hala, Hawaii · 14254 days ago · 6 km deep · 30 km away
  17. 3.2Island of Hawaii, Hawaii · 14253 days ago · 6 km deep · 16 km away
  18. 2.012 km SSE of Fern Forest, Hawaii · 14253 days ago · 7 km deep · 21 km away
  19. 1.815 km N of P?hala, Hawaii · 14253 days ago · 8 km deep · 25 km away
  20. 1.927 km E of Honaunau-Napoopoo, Hawaii · 14253 days ago · 9 km deep · 41 km away
  21. 2.125 km W of Volcano, Hawaii · 14253 days ago · 7 km deep · 28 km away
  22. 2.28 km WSW of Volcano, Hawaii · 14252 days ago · 5 km deep · 16 km away
  23. 2.013 km SSE of Volcano, Hawaii · 14252 days ago · 9 km deep · 10 km away
  24. 2.011 km SE of P?hala, Hawaii · 14251 days ago · 45 km deep · 23 km away
  25. 2.715 km N of P?hala, Hawaii · 14251 days ago · 4 km deep · 24 km away
  26. 1.6Island of Hawaii, Hawaii · 14251 days ago · 8 km deep · 96 km away
  27. 2.419 km WSW of Volcano, Hawaii · 14251 days ago · 12 km deep · 18 km away
  28. 2.67 km NE of Hawaiian Ocean View, Hawaii · 14251 days ago · 2 km deep · 50 km away
  29. 1.7Island of Hawaii, Hawaii · 14251 days ago · 1 km deep · 29 km away
  30. 1.714 km SSE of Volcano, Hawaii · 14250 days ago · 6 km deep · 8 km away
  31. 1.613 km S of Volcano, Hawaii · 14250 days ago · 7 km deep · 6 km away
  32. 2.414 km SSE of Fern Forest, Hawaii · 14250 days ago · 9 km deep · 22 km away
  33. 2.55 km SSW of Volcano, Hawaii · 14250 days ago · 2 km deep · 13 km away
  34. 2.623 km WNW of Volcano, Hawaii · 14249 days ago · 4 km deep · 30 km away
  35. 2.012 km N of Wai‘?hinu, Hawaii · 14249 days ago · 5 km deep · 36 km away
  36. 1.65 km SSW of Volcano, Hawaii · 14249 days ago · 2 km deep · 13 km away
  37. 1.717 km N of P?hala, Hawaii · 14249 days ago · 8 km deep · 24 km away
  38. 2.012 km NNW of Wai‘?hinu, Hawaii · 14248 days ago · 8 km deep · 41 km away
  39. 1.816 km SSE of Volcano, Hawaii · 14248 days ago · 5 km deep · 11 km away
  40. 1.916 km SSE of Fern Forest, Hawaii · 14248 days ago · 5 km deep · 21 km away
  41. 2.117 km NNE of P?hala, Hawaii · 14248 days ago · 10 km deep · 14 km away
  42. 1.815 km S of Fern Forest, Hawaii · 14248 days ago · 6 km deep · 16 km away
  43. 2.219 km SSE of Honaunau-Napoopoo, Hawaii · 14247 days ago · 9 km deep · 56 km away
  44. 2.119 km N of P?hala, Hawaii · 14247 days ago · 8 km deep · 21 km away
  45. 1.718 km SW of Volcano, Hawaii · 14247 days ago · 8 km deep · 13 km away
  46. 1.714 km S of Volcano, Hawaii · 14247 days ago · 6 km deep · 6 km away
  47. 1.90 km ESE of Honaunau-Napoopoo, Hawaii · 14246 days ago · 5 km deep · 65 km away
  48. 2.17 km SW of Volcano, Hawaii · 14246 days ago · 2 km deep · 12 km away
  49. 2.09 km WSW of Volcano, Hawaii · 14245 days ago · 6 km deep · 14 km away
  50. 2.443 km SE of P?hala, Hawaii · 14245 days ago · 47 km deep · 41 km away
  51. 1.816 km S of Fern Forest, Hawaii · 14245 days ago · 6 km deep · 15 km away
  52. 1.66 km NNE of P?hala, Hawaii · 14244 days ago · 9 km deep · 20 km away
  53. 2.713 km S of Volcano, Hawaii · 14244 days ago · 8 km deep · 6 km away
  54. 2.59 km WSW of Volcano, Hawaii · 14244 days ago · 6 km deep · 15 km away
  55. 2.020 km SSW of Honoka‘a, Hawaii · 14244 days ago · 20 km deep · 74 km away
  56. 2.018 km N of P?hala, Hawaii · 14243 days ago · 9 km deep · 25 km away
  57. 2.712 km W of Volcano, Hawaii · 14243 days ago · 9 km deep · 19 km away
  58. 2.54 km W of Honoka‘a, Hawaii · 14243 days ago · 6 km deep · 92 km away
  59. 1.814 km S of Fern Forest, Hawaii · 14243 days ago · 7 km deep · 16 km away
  60. 2.121 km N of P?hala, Hawaii · 14243 days ago · 6 km deep · 27 km away

The first 60 of 196.

Before

  1. 2.18 km W of Volcano, Hawaii · 14258 days ago · 4 km deep · 17 km away
  2. 1.618 km N of P?hala, Hawaii · 14258 days ago · 8 km deep · 26 km away
  3. 2.314 km SSE of Fern Forest, Hawaii · 14259 days ago · 8 km deep · 18 km away
  4. 1.76 km SW of Volcano, Hawaii · 14260 days ago · 14 km deep · 13 km away
  5. 2.113 km SSE of Volcano, Hawaii · 14260 days ago · 8 km deep · 10 km away
  6. 2.87 km SSW of Volcano, Hawaii · 14262 days ago · 29 km deep · 11 km away
  7. 2.321 km S of Fern Forest, Hawaii · 14263 days ago · 43 km deep · 14 km away
  8. 2.025 km N of P?hala, Hawaii · 14264 days ago · 6 km deep · 28 km away
  9. 2.08 km SSW of Volcano, Hawaii · 14264 days ago · 27 km deep · 11 km away
  10. 2.09 km WSW of Volcano, Hawaii · 14264 days ago · 5 km deep · 15 km away
  11. 2.216 km SSW of Volcano, Hawaii · 14264 days ago · 8 km deep · 1 km away
  12. 2.32 km ESE of Kukuihaele, Hawaii · 14264 days ago · 37 km deep · 96 km away
  13. 1.918 km N of P?hala, Hawaii · 14264 days ago · 9 km deep · 21 km away
  14. 2.09 km WSW of Volcano, Hawaii · 14265 days ago · 5 km deep · 17 km away
  15. 1.917 km ESE of Naalehu, Hawaii · 14265 days ago · 39 km deep · 34 km away
  16. 2.313 km SSE of Volcano, Hawaii · 14266 days ago · 7 km deep · 9 km away
  17. 2.615 km SSE of Fern Forest, Hawaii · 14267 days ago · 9 km deep · 18 km away
  18. 2.232 km SE of P?hala, Hawaii · 14268 days ago · 40 km deep · 30 km away
  19. 2.423 km WNW of Volcano, Hawaii · 14268 days ago · 1 km deep · 30 km away
  20. 1.513 km S of Fern Forest, Hawaii · 14268 days ago · 7 km deep · 17 km away

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From the USGS Earthquake Hazards Program and its partner networks, event hv250512. Read Thu, Oct 1, 2026, 5:27 PM UTC.