M6.2 earthquake 46 km WSW of Yonakuni, Japan
A magnitude 6.2 earthquake struck 46 km WSW of Yonakuni, Japan on Thu, May 5, 1966, 10:21 PM GMT+8 (14:21 UTC), 50 km (31 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
- 6.2 (mw), strong
- Local time
- UTC
- 1966-05-05 14:21:23 UTC
- Depth
- 50.2 km (31.2 mi), shallow
- Epicenter
- 24.255° N, 122.608° 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
- 1.5 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
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.2 and up: 6 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.574 km SSW of Yonakuni, Japan · 22062 days ago · 21 km deep · 52 km away
- 5.839 km WSW of Yonakuni, Japan · 22040 days ago · 39 km deep · 9 km away
- 5.637 km WSW of Yonakuni, Japan · 22030 days ago · 35 km deep · 10 km away
- 5.550 km SW of Yonakuni, Japan · 22007 days ago · 45 km deep · 6 km away
- 5.565 km ENE of Hualien City, Taiwan · 22006 days ago · 56 km deep · 46 km away
- 6.466 km WNW of Yonakuni, Japan · 22006 days ago · 113 km deep · 57 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem847191. Read Wed, Sep 30, 2026, 12:38 AM UTC.