Hawaii earthquakes

M2.1 earthquake 11 km SSE of Volcano, Hawaii

A magnitude 2.1 earthquake struck 11 km SSE of Volcano, Hawaii on Sun, Aug 20, 1978, 4:52 PM HST (02:52 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.5 14 km SE of Naalehu, 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
2.1 (ml), micro
Local time
UTC
1978-08-21 02:52:59 UTC
Depth
7.0 km (4.3 mi), shallow
Epicenter
19.355° N, 155.179° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
66°
Stations used
33

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 159 in the 30 days before it.

After

  1. 2.716 km S of Fern Forest, Hawaii · 17572 days ago · 9 km deep · 7 km away
  2. 2.615 km S of Fern Forest, Hawaii · 17571 days ago · 9 km deep · 8 km away
  3. 2.015 km S of Fern Forest, Hawaii · 17571 days ago · 5 km deep · 5 km away
  4. 3.0Island of Hawaii, Hawaii · 17571 days ago · 10 km deep · 25 km away
  5. 2.28 km SW of Volcano, Hawaii · 17571 days ago · 2 km deep · 11 km away
  6. 2.514 km SE of Fern Forest, Hawaii · 17570 days ago · 8 km deep · 15 km away
  7. 2.816 km S of Fern Forest, Hawaii · 17570 days ago · 9 km deep · 7 km away
  8. 2.312 km S of Fern Forest, Hawaii · 17570 days ago · 8 km deep · 5 km away
  9. 2.522 km W of Volcano, Hawaii · 17570 days ago · 6 km deep · 29 km away
  10. 2.117 km W of Volcano, Hawaii · 17569 days ago · 8 km deep · 24 km away
  11. 2.416 km NNE of P?hala, Hawaii · 17569 days ago · 8 km deep · 25 km away
  12. 3.515 km S of Fern Forest, Hawaii · 17569 days ago · 8 km deep · 6 km away
  13. 2.614 km SSE of Volcano, Hawaii · 17569 days ago · 9 km deep · 4 km away
  14. 2.320 km W of Volcano, Hawaii · 17569 days ago · 8 km deep · 27 km away
  15. 2.48 km SSW of Volcano, Hawaii · 17569 days ago · 3 km deep · 11 km away
  16. 2.213 km SSE of Volcano, Hawaii · 17569 days ago · 7 km deep · 3 km away
  17. 2.02 km WSW of Honalo, Hawaii · 17568 days ago · 4 km deep · 84 km away
  18. 2.421 km W of Volcano, Hawaii · 17568 days ago · 0 km deep · 29 km away
  19. 2.014 km SSE of Volcano, Hawaii · 17568 days ago · 7 km deep · 3 km away
  20. 2.214 km SSE of Volcano, Hawaii · 17568 days ago · 7 km deep · 3 km away
  21. 2.58 km SW of Volcano, Hawaii · 17568 days ago · 2 km deep · 11 km away
  22. 2.46 km SSW of Volcano, Hawaii · 17568 days ago · 2 km deep · 9 km away
  23. 2.215 km S of Fern Forest, Hawaii · 17568 days ago · 5 km deep · 5 km away
  24. 2.220 km WSW of Volcano, Hawaii · 17568 days ago · 8 km deep · 25 km away
  25. 2.73 km E of P?pa‘ikou, Hawaii · 17567 days ago · 40 km deep · 50 km away
  26. 2.114 km S of Fern Forest, Hawaii · 17567 days ago · 8 km deep · 7 km away
  27. 2.014 km SSE of Volcano, Hawaii · 17566 days ago · 8 km deep · 3 km away
  28. 2.515 km NE of P?hala, Hawaii · 17566 days ago · 5 km deep · 20 km away
  29. 2.37 km SW of Volcano, Hawaii · 17566 days ago · 1 km deep · 11 km away
  30. 2.17 km SW of Volcano, Hawaii · 17566 days ago · 2 km deep · 11 km away
  31. 2.59 km SSE of Volcano, Hawaii · 17565 days ago · 2 km deep · 3 km away
  32. 2.418 km W of Volcano, Hawaii · 17565 days ago · 6 km deep · 25 km away
  33. 2.38 km SW of Volcano, Hawaii · 17565 days ago · 2 km deep · 11 km away
  34. 2.111 km SSE of Volcano, Hawaii · 17565 days ago · 9 km deep · 3 km away
  35. 3.58 km SW of Volcano, Hawaii · 17565 days ago · 3 km deep · 11 km away
  36. 2.515 km S of Volcano, Hawaii · 17564 days ago · 9 km deep · 8 km away
  37. 2.2Island of Hawaii, Hawaii · 17564 days ago · 7 km deep · 3 km away
  38. 2.312 km SSE of Volcano, Hawaii · 17564 days ago · 8 km deep · 4 km away
  39. 2.015 km S of Volcano, Hawaii · 17564 days ago · 8 km deep · 10 km away
  40. 2.48 km SW of Volcano, Hawaii · 17563 days ago · 2 km deep · 11 km away
  41. 2.414 km SSE of Volcano, Hawaii · 17563 days ago · 6 km deep · 4 km away
  42. 2.98 km SW of Volcano, Hawaii · 17563 days ago · 2 km deep · 11 km away
  43. 3.4Island of Hawaii, Hawaii · 17563 days ago · 9 km deep · 5 km away
  44. 2.013 km SSE of Fern Forest, Hawaii · 17563 days ago · 3 km deep · 8 km away
  45. 2.017 km SSW of Volcano, Hawaii · 17563 days ago · 7 km deep · 12 km away
  46. 2.715 km S of Volcano, Hawaii · 17563 days ago · 10 km deep · 7 km away
  47. 2.013 km SSE of Volcano, Hawaii · 17563 days ago · 6 km deep · 3 km away
  48. 2.416 km S of Fern Forest, Hawaii · 17562 days ago · 6 km deep · 7 km away
  49. 3.418 km SE of Fern Forest, Hawaii · 17562 days ago · 7 km deep · 16 km away
  50. 2.614 km SSE of Volcano, Hawaii · 17562 days ago · 7 km deep · 5 km away
  51. 2.413 km SSE of Volcano, Hawaii · 17562 days ago · 7 km deep · 3 km away
  52. 2.715 km SE of Fern Forest, Hawaii · 17562 days ago · 7 km deep · 14 km away
  53. 2.817 km SW of Laup?hoehoe, Hawaii · 17562 days ago · 9 km deep · 60 km away
  54. 1.78 km NE of Honalo, Hawaii · 17562 days ago · 12 km deep · 77 km away
  55. 2.212 km S of Volcano, Hawaii · 17561 days ago · 7 km deep · 6 km away
  56. 4.514 km SE of Naalehu, Hawaii · 17561 days ago · 37 km deep · 53 km away
  57. 2.613 km SE of Naalehu, Hawaii · 17561 days ago · 35 km deep · 51 km away
  58. 2.614 km SSE of Volcano, Hawaii · 17561 days ago · 9 km deep · 5 km away
  59. 2.613 km SE of Naalehu, Hawaii · 17561 days ago · 35 km deep · 52 km away
  60. 3.214 km SE of Naalehu, Hawaii · 17561 days ago · 37 km deep · 52 km away

The first 60 of 197.

Before

  1. 2.915 km S of Volcano, Hawaii · 17572 days ago · 10 km deep · 7 km away
  2. 2.113 km SSE of Fern Forest, Hawaii · 17572 days ago · 6 km deep · 12 km away
  3. 2.42 km SSW of Leilani Estates, Hawaii · 17572 days ago · 6 km deep · 28 km away
  4. 2.115 km SSE of Volcano, Hawaii · 17573 days ago · 7 km deep · 4 km away
  5. 2.1Island of Hawaii, Hawaii · 17573 days ago · 8 km deep · 26 km away
  6. 2.314 km S of Volcano, Hawaii · 17573 days ago · 7 km deep · 7 km away
  7. 2.115 km SSE of Eden Roc, Hawaii · 17573 days ago · 7 km deep · 16 km away
  8. 2.627 km ENE of Honaunau-Napoopoo, Hawaii · 17573 days ago · 7 km deep · 51 km away
  9. 2.912 km S of Pa‘auilo, Hawaii · 17573 days ago · 9 km deep · 67 km away
  10. 2.115 km S of Volcano, Hawaii · 17574 days ago · 7 km deep · 7 km away
  11. 2.219 km W of Volcano, Hawaii · 17574 days ago · 9 km deep · 26 km away
  12. 3.54 km WNW of P?hala, Hawaii · 17574 days ago · 30 km deep · 38 km away
  13. 2.68 km SW of Volcano, Hawaii · 17575 days ago · 2 km deep · 11 km away
  14. 2.65 km SSW of Volcano, Hawaii · 17575 days ago · 2 km deep · 10 km away
  15. 2.214 km SSE of Fern Forest, Hawaii · 17575 days ago · 4 km deep · 8 km away
  16. 2.15 km SW of Volcano, Hawaii · 17575 days ago · 15 km deep · 11 km away
  17. 2.416 km SW of Leilani Estates, Hawaii · 17575 days ago · 8 km deep · 17 km away
  18. 2.653 km ESE of Naalehu, Hawaii · 17576 days ago · 13 km deep · 59 km away
  19. 2.38 km ESE of Leilani Estates, Hawaii · 17576 days ago · 10 km deep · 36 km away
  20. 2.115 km SW of Leilani Estates, Hawaii · 17576 days ago · 5 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19781369. Read Tue, Sep 29, 2026, 11:27 PM UTC.