M4.0 earthquake 56 km WNW of Yonakuni, Japan
A magnitude 4.0 earthquake struck 56 km WNW of Yonakuni, Japan on Fri, Jun 26, 1981, 1:04 AM GMT+8 (17:04 UTC), 113 km (70 mi) below the surface.
A larger quake followed: M4.1 72 km E of Hualien City, Taiwan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1981-06-25 17:04:15 UTC
- Depth
- 113.3 km (70.4 mi), intermediate-depth
- Epicenter
- 24.688° N, 122.501° 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: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.172 km E of Hualien City, Taiwan · 16522 days ago · 54 km deep · 92 km away
- 3.841 km E of Yilan, Taiwan · 16522 days ago · 88 km deep · 38 km away
- 4.553 km ESE of Jiufen, Taiwan · 16496 days ago · 123 km deep · 30 km away
- 5.367 km N of Yonakuni, Japan · 16487 days ago · 163 km deep · 74 km away
- 4.335 km ESE of Yilan, Taiwan · 16487 days ago · 73 km deep · 45 km away
- 4.227 km E of Yilan, Taiwan · 16469 days ago · 10 km deep · 50 km away
- 4.573 km SSW of Yonakuni, Japan · 16468 days ago · 33 km deep · 90 km away
- 4.035 km S of Yilan, Taiwan · 16466 days ago · 6 km deep · 83 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ebf. Read Tue, Sep 22, 2026, 9:25 PM UTC.