M5.6 earthquake 37 km WSW of Yonakuni, Japan
A magnitude 5.6 earthquake struck 37 km WSW of Yonakuni, Japan on Tue, Jun 7, 1966, 7:44 PM GMT+8 (11:44 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M6.4 66 km WNW 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
- 5.6 (mw), moderate
- Local time
- UTC
- 1966-06-07 11:44:52 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 24.328° N, 122.660° E
- Region
- Japan
- Strongest shaking
- IV, light 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
- IV, light shaking
- Peak ground acceleration
- 3.5% of gravity
- Peak ground velocity
- 0.7 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
- ±0.28
- 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.550 km SW of Yonakuni, Japan · 21999 days ago · 45 km deep · 16 km away
- 5.565 km ENE of Hualien City, Taiwan · 21999 days ago · 56 km deep · 51 km away
- 6.466 km WNW of Yonakuni, Japan · 21998 days ago · 113 km deep · 52 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem846229. Read Tue, Sep 22, 2026, 7:30 AM UTC.