Japan earthquakes

M4.4 earthquake 42 km E of Iwaki, Japan

A magnitude 4.4 earthquake struck 42 km E of Iwaki, Japan on Tue, Dec 20, 2016, 6:46 AM JST (21:46 UTC), 32 km (20 mi) below the surface.

A larger quake followed: M5.9 13 km NE of Daigo, Japan. This one was a foreshock.

Iwaki forecastMore in Japan

Map

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

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-12-19 21:46:59 UTC
Depth
32.3 km (20.1 mi), shallow
Epicenter
37.084° N, 141.364° E
Region
Japan
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 3.8 km horizontally, 6.8 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
155°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 29 in the 60 days after this one and 111 in the 30 days before it.

After

  1. 4.538 km E of Namie, Japan · 3572 days ago · 35 km deep · 42 km away · felt by 1
  2. 5.1106 km ESE of Iwaki, Japan · 3572 days ago · 23 km deep · 70 km away · felt by 7
  3. 4.6105 km ESE of Iwaki, Japan · 3571 days ago · 35 km deep · 67 km away · felt by 1
  4. 4.786 km ESE of Iwaki, Japan · 3571 days ago · 43 km deep · 48 km away · felt by 1
  5. 4.4106 km ESE of Iwaki, Japan · 3571 days ago · 44 km deep · 70 km away
  6. 4.4103 km ESE of Iwaki, Japan · 3570 days ago · 36 km deep · 64 km away
  7. 4.663 km ESE of Hitachi, Japan · 3568 days ago · 33 km deep · 75 km away
  8. 5.913 km NE of Daigo, Japan · 3567 days ago · 7 km deep · 86 km away · felt by 178
  9. 4.76 km WNW of Kitaibaraki, Japan · 3567 days ago · 10 km deep · 68 km away · felt by 1
  10. 4.414 km NW of Hitachi, Japan · 3566 days ago · 36 km deep · 88 km away
  11. 5.142 km ESE of Namie, Japan · 3564 days ago · 9 km deep · 33 km away · felt by 19
  12. 5.217 km SSE of Iwaki, Japan · 3560 days ago · 53 km deep · 43 km away · felt by 57
  13. 4.445 km ENE of Iwaki, Japan · 3560 days ago · 10 km deep · 12 km away
  14. 5.339 km ENE of Iwaki, Japan · 3560 days ago · 10 km deep · 9 km away · felt by 69
  15. 4.220 km SE of Iwaki, Japan · 3556 days ago · 47 km deep · 36 km away · felt by 2
  16. 4.051 km E of Namie, Japan · 3553 days ago · 15 km deep · 44 km away
  17. 4.417 km W of Namie, Japan · 3553 days ago · 91 km deep · 65 km away
  18. 4.546 km E of Namie, Japan · 3551 days ago · 10 km deep · 46 km away
  19. 4.251 km E of Namie, Japan · 3550 days ago · 10 km deep · 40 km away
  20. 4.57 km E of Funaishikawa, Japan · 3546 days ago · 59 km deep · 92 km away · felt by 35
  21. 4.3near the east coast of Honshu, Japan · 3530 days ago · 37 km deep · 94 km away · felt by 2
  22. 4.830 km ESE of Namie, Japan · 3530 days ago · 25 km deep · 32 km away · felt by 1
  23. 4.3107 km ESE of Takahagi, Japan · 3527 days ago · 39 km deep · 89 km away
  24. 4.461 km E of Namie, Japan · 3526 days ago · 47 km deep · 61 km away
  25. 4.613 km WNW of Takahagi, Japan · 3526 days ago · 36 km deep · 79 km away · felt by 6
  26. 4.543 km ESE of Namie, Japan · 3525 days ago · 23 km deep · 23 km away
  27. 4.251 km ESE of Hitachi, Japan · 3524 days ago · 41 km deep · 71 km away · felt by 7
  28. 5.266 km ESE of Namie, Japan · 3522 days ago · 7 km deep · 37 km away · felt by 23
  29. 4.143 km ENE of Iwaki, Japan · 3522 days ago · 10 km deep · 7 km away

Before

  1. 5.150 km E of Namie, Japan · 3576 days ago · 10 km deep · 39 km away · felt by 11
  2. 4.4near the east coast of Honshu, Japan · 3576 days ago · 58 km deep · 86 km away
  3. 4.160 km ESE of Namie, Japan · 3576 days ago · 35 km deep · 26 km away
  4. 4.458 km ESE of Namie, Japan · 3577 days ago · 33 km deep · 23 km away
  5. 4.647 km ESE of Namie, Japan · 3580 days ago · 40 km deep · 27 km away
  6. 4.648 km E of Namie, Japan · 3587 days ago · 9 km deep · 40 km away · felt by 4
  7. 3.847 km ENE of Iwaki, Japan · 3587 days ago · 4 km deep · 10 km away
  8. 4.428 km E of Namie, Japan · 3590 days ago · 32 km deep · 47 km away
  9. 4.558 km NE of Namie, Japan · 3590 days ago · 63 km deep · 82 km away
  10. 4.761 km ESE of Namie, Japan · 3591 days ago · 3 km deep · 24 km away · felt by 1
  11. 4.944 km SE of Namie, Japan · 3591 days ago · 15 km deep · 20 km away · felt by 3
  12. 4.737 km ESE of Namie, Japan · 3591 days ago · 32 km deep · 24 km away · felt by 1
  13. 4.852 km SE of Namie, Japan · 3591 days ago · 10 km deep · 18 km away
  14. 4.634 km E of Namie, Japan · 3593 days ago · 35 km deep · 48 km away
  15. 4.250 km ESE of Namie, Japan · 3595 days ago · 10 km deep · 21 km away
  16. 4.457 km ESE of Namie, Japan · 3595 days ago · 8 km deep · 26 km away
  17. 4.045 km SE of Namie, Japan · 3597 days ago · 35 km deep · 19 km away
  18. 4.629 km SE of Namie, Japan · 3597 days ago · 22 km deep · 27 km away
  19. 4.344 km SE of Namie, Japan · 3598 days ago · 10 km deep · 17 km away
  20. 4.344 km ESE of Namie, Japan · 3598 days ago · 13 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10007rdp. Read Sun, Oct 4, 2026, 5:43 AM UTC.