M4.6 earthquake 28 km NNW of Otofuke, Japan
A magnitude 4.6 earthquake struck 28 km NNW of Otofuke, Japan on Tue, Oct 1, 1974, 6:05 AM JST (21:05 UTC), 142 km (88 mi) below the surface.
A larger quake followed: M4.8 27 km NNE of Shizunai-furukawach?, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-09-30 21:05:33 UTC
- Depth
- 142.0 km (88.2 mi), intermediate-depth
- Epicenter
- 43.224° N, 143.057° 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
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 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 usp000087p. Read Sun, Oct 4, 2026, 11:41 PM UTC.