M4.3 earthquake 56 km WNW of Yonakuni, Japan
A magnitude 4.3 earthquake struck 56 km WNW of Yonakuni, Japan on Sun, Jun 16, 1985, 5:01 AM GMT+8 (21:01 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.5 42 km SSE of Yilan, Taiwan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1985-06-15 21:01:15 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 24.670° N, 122.489° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.372 km SW of Yonakuni, Japan · 15076 days ago · 32 km deep · 71 km away
- 4.263 km WNW of Yonakuni, Japan · 15074 days ago · 10 km deep · 12 km away
- 3.742 km ESE of Yilan, Taiwan · 15062 days ago · 10 km deep · 37 km away
- 4.864 km WNW of Yonakuni, Japan · 15060 days ago · 10 km deep · 12 km away
- 4.828 km NNE of Hualien City, Taiwan · 15053 days ago · 35 km deep · 92 km away
- 4.078 km E of Hualien City, Taiwan · 15050 days ago · 33 km deep · 86 km away
- 3.850 km ESE of Jiufen, Taiwan · 15042 days ago · 105 km deep · 36 km away
- 5.542 km SSE of Yilan, Taiwan · 15028 days ago · 10 km deep · 68 km away
- 4.841 km S of Yilan, Taiwan · 15028 days ago · 10 km deep · 77 km away
- 4.444 km SSE of Yilan, Taiwan · 15028 days ago · 10 km deep · 57 km away
- 3.738 km SSE of Yilan, Taiwan · 15025 days ago · 10 km deep · 72 km away
- 4.48 km N of Yilan, Taiwan · 15021 days ago · 32 km deep · 76 km away
Before
- 4.661 km WNW of Yonakuni, Japan · 15079 days ago · 10 km deep · 10 km away
- 3.933 km SE of Yilan, Taiwan · 15079 days ago · 10 km deep · 48 km away
- 3.963 km WNW of Yonakuni, Japan · 15079 days ago · 10 km deep · 7 km away
- 4.158 km ESE of Yilan, Taiwan · 15081 days ago · 10 km deep · 29 km away
- 4.363 km ESE of Yilan, Taiwan · 15081 days ago · 10 km deep · 28 km away
- 5.938 km ESE of Yilan, Taiwan · 15081 days ago · 28 km deep · 43 km away
- 4.360 km ESE of Yilan, Taiwan · 15082 days ago · 30 km deep · 16 km away
- 4.268 km SW of Yonakuni, Japan · 15093 days ago · 33 km deep · 77 km away
- 3.732 km E of Yilan, Taiwan · 15094 days ago · 109 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002fvu. Read Sun, Sep 27, 2026, 2:21 AM UTC.