Iceland earthquakes

M4.3 earthquake 40 km ENE of Norðurþing, Iceland

A magnitude 4.3 earthquake struck 40 km ENE of Norðurþing, Iceland on Sun, Dec 28, 1975, 11:03 AM GMT (11:03 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.7 21 km E of Norðurþing, Iceland. 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
4.3 (mb), light
Local time
UTC
1975-12-28 11:03:51 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
66.229° N, 16.583° W
Region
Iceland
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.

Depth from
OPERATOR_ASSIGNED
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: 39 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.721 km E of Norðurþing, Iceland · 18530 days ago · 14 km deep · 27 km away
  2. 4.543 km ENE of Norðurþing, Iceland · 18529 days ago · 10 km deep · 4 km away
  3. 4.335 km ENE of Norðurþing, Iceland · 18529 days ago · 33 km deep · 6 km away
  4. 4.954 km ENE of Norðurþing, Iceland · 18528 days ago · 33 km deep · 14 km away
  5. 4.530 km ESE of Laugar, Iceland · 18527 days ago · 10 km deep · 63 km away
  6. 4.425 km E of Norðurþing, Iceland · 18527 days ago · 33 km deep · 24 km away
  7. 5.229 km E of Norðurþing, Iceland · 18525 days ago · 33 km deep · 21 km away
  8. 4.629 km ESE of Laugar, Iceland · 18523 days ago · 6 km deep · 65 km away
  9. 5.024 km E of Laugar, Iceland · 18523 days ago · 10 km deep · 61 km away
  10. 4.343 km NE of Norðurþing, Iceland · 18522 days ago · 33 km deep · 15 km away
  11. 4.627 km E of Norðurþing, Iceland · 18522 days ago · 33 km deep · 19 km away
  12. 4.118 km NNE of Norðurþing, Iceland · 18520 days ago · 10 km deep · 26 km away
  13. 4.8Iceland region · 18520 days ago · 33 km deep · 17 km away
  14. 4.336 km ENE of Norðurþing, Iceland · 18520 days ago · 10 km deep · 8 km away
  15. 4.733 km ESE of Norðurþing, Iceland · 18520 days ago · 33 km deep · 31 km away
  16. 5.032 km ENE of Norðurþing, Iceland · 18516 days ago · 33 km deep · 12 km away
  17. 6.436 km ENE of Norðurþing, Iceland · 18515 days ago · 33 km deep · 8 km away
  18. 4.536 km ENE of Norðurþing, Iceland · 18515 days ago · 33 km deep · 13 km away
  19. 4.538 km NE of Norðurþing, Iceland · 18515 days ago · 10 km deep · 11 km away
  20. 4.529 km ENE of Laugar, Iceland · 18515 days ago · 10 km deep · 50 km away
  21. 4.519 km ESE of Norðurþing, Iceland · 18514 days ago · 10 km deep · 35 km away
  22. 4.317 km NW of Norðurþing, Iceland · 18513 days ago · 10 km deep · 46 km away
  23. 4.412 km ESE of Laugar, Iceland · 18512 days ago · 10 km deep · 65 km away
  24. 4.532 km ENE of Norðurþing, Iceland · 18512 days ago · 10 km deep · 8 km away
  25. 4.638 km E of Laugar, Iceland · 18511 days ago · 33 km deep · 54 km away
  26. 4.434 km ENE of Laugar, Iceland · 18511 days ago · 33 km deep · 46 km away
  27. 4.625 km E of Laugar, Iceland · 18511 days ago · 33 km deep · 58 km away
  28. 5.018 km ESE of Laugar, Iceland · 18510 days ago · 10 km deep · 65 km away
  29. 4.936 km E of Laugar, Iceland · 18509 days ago · 33 km deep · 51 km away
  30. 4.629 km E of Laugar, Iceland · 18507 days ago · 33 km deep · 58 km away
  31. 4.531 km ENE of Laugar, Iceland · 18506 days ago · 33 km deep · 44 km away
  32. 4.558 km E of Norðurþing, Iceland · 18506 days ago · 33 km deep · 37 km away
  33. 4.227 km NNE of Norðurþing, Iceland · 18503 days ago · 10 km deep · 25 km away
  34. 4.431 km NNE of Norðurþing, Iceland · 18503 days ago · 10 km deep · 21 km away
  35. 4.37 km SE of Laugar, Iceland · 18503 days ago · 10 km deep · 70 km away
  36. 4.316 km E of Laugar, Iceland · 18502 days ago · 10 km deep · 58 km away
  37. 4.926 km ESE of Laugar, Iceland · 18497 days ago · 8 km deep · 66 km away
  38. 4.827 km ENE of Norðurþing, Iceland · 18495 days ago · 5 km deep · 15 km away
  39. 4.512 km SE of Norðurþing, Iceland · 18492 days ago · 5 km deep · 39 km away

Before

  1. 4.417 km NE of Norðurþing, Iceland · 18533 days ago · 33 km deep · 25 km away
  2. 4.6Iceland region · 18533 days ago · 10 km deep · 18 km away
  3. 4.642 km ENE of Norðurþing, Iceland · 18534 days ago · 33 km deep · 12 km away
  4. 4.924 km E of Norðurþing, Iceland · 18534 days ago · 33 km deep · 21 km away
  5. 5.141 km ENE of Norðurþing, Iceland · 18534 days ago · 10 km deep · 12 km away
  6. 4.620 km ENE of Norðurþing, Iceland · 18535 days ago · 10 km deep · 20 km away
  7. 4.727 km E of Norðurþing, Iceland · 18535 days ago · 10 km deep · 21 km away
  8. 4.829 km ENE of Norðurþing, Iceland · 18536 days ago · 33 km deep · 15 km away
  9. 4.567 km ENE of Norðurþing, Iceland · 18537 days ago · 33 km deep · 28 km away
  10. 4.243 km ENE of Norðurþing, Iceland · 18538 days ago · 33 km deep · 4 km away
  11. 4.533 km NW of Norðurþing, Iceland · 18543 days ago · 20 km deep · 55 km away
  12. 4.557 km NE of Siglufjörður, Iceland · 18544 days ago · 10 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000e4e. Read Tue, Sep 22, 2026, 9:31 PM UTC.