M6.6 earthquake 69 km WSW of Fukaura, Japan
A magnitude 6.6 earthquake struck 69 km WSW of Fukaura, Japan on Fri, May 8, 1964, 5:12 AM JST (20:12 UTC), 18 km (11 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), strong
- Local time
- UTC
- 1964-05-07 20:12:50 UTC
- Depth
- 18.4 km (11.4 mi), shallow
- Epicenter
- 40.516° N, 139.125° E
- Region
- Japan
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 6.2% of gravity
- Peak ground velocity
- 2.0 cm/s
- Map
- Automatic
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
- ±0.30
- 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: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem867550. Read Tue, Sep 22, 2026, 8:06 AM UTC.