M4.4 earthquake 12 km E of Mobara, Japan
A magnitude 4.4 earthquake struck 12 km E of Mobara, Japan on Sat, Jan 12, 1985, 10:30 AM JST (01:30 UTC), 38 km (24 mi) below the surface.
A larger quake followed: M4.5 37 km SSE of Hasaki, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1985-01-12 01:30:57 UTC
- Depth
- 38.2 km (23.7 mi), shallow
- Epicenter
- 35.415° N, 140.431° 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
- 4.537 km SSE of Hasaki, Japan · 15228 days ago · 33 km deep · 53 km away
- 4.2near the east coast of Honshu, Japan · 15226 days ago · 67 km deep · 52 km away
- 4.30 km N of Fujisawa, Japan · 15203 days ago · 113 km deep · 87 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ayv. Read Tue, Sep 22, 2026, 3:07 PM UTC.