M5.1 earthquake 70 km S of Koshima, Japan
A magnitude 5.1 earthquake struck 70 km S of Koshima, Japan on Thu, Apr 12, 1973, 1:40 PM JST (04:40 UTC), 37 km (23 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1973-04-12 04:40:54 UTC
- Depth
- 37.0 km (23.0 mi), shallow
- Epicenter
- 29.595° N, 130.514° 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
- 57
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.8104 km SSW of Yudomari, Japan · 19511 days ago · 48 km deep · 63 km away
- 4.482 km S of Yudomari, Japan · 19490 days ago · 33 km deep · 12 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001c9 (also filed as iscgem761456). Read Tue, Sep 22, 2026, 8:10 AM UTC.