M6.6 earthquake 230 km NNW of Nago, Japan
A magnitude 6.6 earthquake struck 230 km NNW of Nago, Japan on Fri, Jan 16, 1931, 6:01 AM JST (21:01 UTC), 35 km (22 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (Mw, moment), strong
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1931-01-15 21:01:43 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 28.529° N, 127.069° 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
- ±0.69
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.6 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem906566. Read Fri, Oct 2, 2026, 2:01 AM UTC.