M6.0 earthquake 86 km S of Yudomari, Japan
A magnitude 6.0 earthquake struck 86 km S of Yudomari, Japan on Tue, Apr 4, 1950, 12:42 PM JST (03:42 UTC), 55 km (34 mi) below the surface.
A larger quake followed: M6.2 42 km S of Koshima, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), strong
- Local time
- UTC
- 1950-04-04 03:42:51 UTC
- Depth
- 55.0 km (34.2 mi), shallow
- Epicenter
- 29.454° N, 130.445° 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.
- Magnitude uncertainty
- ±0.40
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 1 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 iscgem895347. Read Tue, Sep 22, 2026, 8:51 AM UTC.