Japan earthquakes

M4.3 earthquake 39 km WNW of Yonakuni, Japan

A magnitude 4.3 earthquake struck 39 km WNW of Yonakuni, Japan on Tue, Apr 22, 1986, 12:50 PM GMT+8 (04:50 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M4.5 76 km NE of Yonakuni, Japan. 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
1986-04-22 04:50:32 UTC
Depth
28.9 km (18.0 mi), shallow
Epicenter
24.613° N, 122.643° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 52 in the 30 days before it.

After

  1. 4.162 km ENE of Hualien City, Taiwan · 14756 days ago · 33 km deep · 66 km away
  2. 4.576 km NE of Yonakuni, Japan · 14749 days ago · 72 km deep · 98 km away
  3. 4.850 km N of Yonakuni, Japan · 14737 days ago · 33 km deep · 53 km away
  4. 4.242 km NE of Hualien City, Taiwan · 14713 days ago · 80 km deep · 85 km away
  5. 4.841 km N of Yonakuni, Japan · 14705 days ago · 33 km deep · 43 km away

Before

  1. 4.515 km N of Yonakuni, Japan · 14764 days ago · 33 km deep · 37 km away
  2. 4.011 km ESE of Yonakuni, Japan · 14764 days ago · 33 km deep · 51 km away
  3. 5.162 km NE of Yonakuni, Japan · 14765 days ago · 33 km deep · 83 km away
  4. 5.054 km NE of Yonakuni, Japan · 14765 days ago · 29 km deep · 78 km away
  5. 4.429 km SE of Yonakuni, Japan · 14776 days ago · 33 km deep · 68 km away
  6. 4.411 km SE of Yilan, Taiwan · 14777 days ago · 33 km deep · 82 km away
  7. 4.361 km N of Yonakuni, Japan · 14779 days ago · 33 km deep · 58 km away
  8. 4.744 km NNE of Yonakuni, Japan · 14780 days ago · 30 km deep · 64 km away
  9. 3.944 km NNE of Yonakuni, Japan · 14782 days ago · 33 km deep · 60 km away
  10. 4.327 km NNW of Yonakuni, Japan · 14783 days ago · 33 km deep · 30 km away
  11. 4.557 km SSE of Yonakuni, Japan · 14783 days ago · 33 km deep · 90 km away
  12. 4.638 km NNW of Yonakuni, Japan · 14785 days ago · 33 km deep · 24 km away
  13. 5.039 km NNW of Yonakuni, Japan · 14786 days ago · 33 km deep · 34 km away
  14. 4.462 km NNE of Yonakuni, Japan · 14787 days ago · 33 km deep · 74 km away
  15. 4.434 km NNW of Yonakuni, Japan · 14787 days ago · 33 km deep · 33 km away
  16. 3.8Taiwan region · 14787 days ago · 33 km deep · 29 km away
  17. 4.438 km NNE of Yonakuni, Japan · 14787 days ago · 33 km deep · 55 km away
  18. 4.659 km NE of Yonakuni, Japan · 14788 days ago · 33 km deep · 79 km away
  19. 4.439 km NW of Yonakuni, Japan · 14788 days ago · 33 km deep · 12 km away
  20. 4.948 km N of Yonakuni, Japan · 14788 days ago · 33 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002t3m. Read Tue, Sep 22, 2026, 11:20 AM UTC.