Japan earthquakes

M4.3 earthquake 72 km SW of Yonakuni, Japan

A magnitude 4.3 earthquake struck 72 km SW of Yonakuni, Japan on Tue, Jun 18, 1985, 1:53 PM GMT+8 (05:53 UTC), 32 km (20 mi) below the surface.

A larger quake followed: M5.5 42 km SSE of Yilan, Taiwan. 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
1985-06-18 05:53:23 UTC
Depth
32.3 km (20.1 mi), shallow
Epicenter
24.029° N, 122.463° 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: 10 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.263 km WNW of Yonakuni, Japan · 15077 days ago · 10 km deep · 65 km away
  2. 4.086 km S of Yonakuni, Japan · 15076 days ago · 33 km deep · 64 km away
  3. 3.742 km ESE of Yilan, Taiwan · 15066 days ago · 10 km deep · 70 km away
  4. 4.864 km WNW of Yonakuni, Japan · 15063 days ago · 10 km deep · 66 km away
  5. 4.828 km NNE of Hualien City, Taiwan · 15057 days ago · 35 km deep · 75 km away
  6. 4.078 km E of Hualien City, Taiwan · 15054 days ago · 33 km deep · 17 km away
  7. 5.542 km SSE of Yilan, Taiwan · 15031 days ago · 10 km deep · 71 km away
  8. 4.841 km S of Yilan, Taiwan · 15031 days ago · 10 km deep · 78 km away
  9. 4.444 km SSE of Yilan, Taiwan · 15031 days ago · 10 km deep · 64 km away
  10. 3.738 km SSE of Yilan, Taiwan · 15028 days ago · 10 km deep · 77 km away

Before

  1. 4.356 km WNW of Yonakuni, Japan · 15082 days ago · 10 km deep · 71 km away
  2. 4.661 km WNW of Yonakuni, Japan · 15082 days ago · 10 km deep · 65 km away
  3. 3.933 km SE of Yilan, Taiwan · 15082 days ago · 10 km deep · 76 km away
  4. 3.963 km WNW of Yonakuni, Japan · 15082 days ago · 10 km deep · 72 km away
  5. 4.158 km ESE of Yilan, Taiwan · 15084 days ago · 10 km deep · 57 km away
  6. 4.363 km ESE of Yilan, Taiwan · 15085 days ago · 10 km deep · 53 km away
  7. 5.938 km ESE of Yilan, Taiwan · 15085 days ago · 28 km deep · 73 km away
  8. 4.360 km ESE of Yilan, Taiwan · 15085 days ago · 30 km deep · 67 km away
  9. 4.268 km SW of Yonakuni, Japan · 15097 days ago · 33 km deep · 13 km away
  10. 3.732 km E of Yilan, Taiwan · 15097 days ago · 109 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002fyf. Read Wed, Sep 30, 2026, 11:27 AM UTC.