M3.9 earthquake 165 km S of ?yama, Japan
A magnitude 3.9 earthquake struck 165 km S of ?yama, Japan on Thu, Jan 2, 1986, 3:04 PM JST (06:04 UTC), 333 km (207 mi) below the surface.
A larger quake followed: M4.8 98 km SE of Toba, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1986-01-02 06:04:39 UTC
- Depth
- 333.1 km (207.0 mi), deep
- Epicenter
- 33.114° N, 138.119° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.4176 km S of ?yama, Japan · 14874 days ago · 342 km deep · 17 km away
- 4.2231 km SE of Shing?, Japan · 14860 days ago · 375 km deep · 90 km away
- 4.898 km SE of Toba, Japan · 14856 days ago · 18 km deep · 94 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ppm. Read Thu, Oct 1, 2026, 3:13 PM UTC.