M6.3 earthquake 71 km S of Yonakuni, Japan
A magnitude 6.3 earthquake struck 71 km S of Yonakuni, Japan on Thu, Sep 7, 1922, 7:12 AM JST (22:12 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M7.0 39 km WSW of Yonakuni, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.3 (mw), strong
- Local time
- UTC
- 1922-09-06 22:12:05 UTC
- Depth
- 13.0 km (8.1 mi), shallow
- Epicenter
- 23.824° N, 122.960° 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
- ±0.27
- 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: 2 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 iscgem912005. Read Tue, Sep 22, 2026, 8:26 PM UTC.