M4.8 earthquake 41 km N of Yonakuni, Japan
A magnitude 4.8 earthquake struck 41 km N of Yonakuni, Japan on Thu, Jun 19, 1986, 9:50 AM GMT+8 (01:50 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 44 km N of Yonakuni, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1986-06-19 01:50:12 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 24.840° N, 122.986° 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 1.8 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002v6d. Read Tue, Sep 22, 2026, 4:04 PM UTC.