M6.1 earthquake 113 km ESE of Hasaki, Japan
A magnitude 6.1 earthquake struck 113 km ESE of Hasaki, Japan on Fri, Apr 22, 1966, 12:45 AM JST (15:45 UTC), 16 km (10 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.1 (mw), strong
- Local time
- UTC
- 1966-04-21 15:45:22 UTC
- Depth
- 16.0 km (9.9 mi), shallow
- Epicenter
- 35.539° N, 142.068° 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 1 in the 30 days before it.
After
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem848596. Read Tue, Sep 22, 2026, 8:41 AM UTC.