M6.3 earthquake 57 km SW of Yonakuni, Japan
A magnitude 6.3 earthquake struck 57 km SW of Yonakuni, Japan on Mon, Apr 17, 1972, 6:49 PM GMT+8 (10:49 UTC), 44 km (27 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.3 (mw), strong
- Local time
- UTC
- 1972-04-17 10:49:45 UTC
- Depth
- 44.2 km (27.5 mi), shallow
- Epicenter
- 24.152° N, 122.548° 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
- 5.4% 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 2.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.365 km SW of Yonakuni, Japan · 19878 days ago · 38 km deep · 8 km away
- 5.673 km SW of Yonakuni, Japan · 19872 days ago · 32 km deep · 16 km away
- 5.623 km SSE of Hualien City, Taiwan · 19868 days ago · 15 km deep · 100 km away
- 5.183 km E of Hualien City, Taiwan · 19844 days ago · 31 km deep · 28 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem774536. Read Wed, Sep 23, 2026, 2:07 PM UTC.