M5.2 earthquake 5 km WSW of Koga, Japan
A magnitude 5.2 earthquake struck 5 km WSW of Koga, Japan on Wed, Jan 28, 1981, 12:47 PM JST (03:47 UTC), 69 km (43 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (mb), moderate
- Local time
- UTC
- 1981-01-28 03:47:43 UTC
- Depth
- 69.0 km (42.9 mi), shallow
- Epicenter
- 36.170° N, 139.658° 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.
- Stations used
- 113
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.01 km W of Hitachi-Naka, Japan · 16648 days ago · 73 km deep · 81 km away
- 4.71 km SE of Ry?gasaki, Japan · 16631 days ago · 64 km deep · 58 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001bxb. Read Tue, Sep 22, 2026, 8:07 AM UTC.