M4.5 earthquake 73 km SSW of Yonakuni, Japan
A magnitude 4.5 earthquake struck 73 km SSW of Yonakuni, Japan on Sat, Aug 22, 1981, 10:43 AM GMT+8 (02:43 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1981-08-22 02:43:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 23.888° N, 122.637° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.512 km NW of Yonakuni, Japan · 16442 days ago · 33 km deep · 77 km away
- 4.025 km WNW of Yonakuni, Japan · 16433 days ago · 110 km deep · 74 km away
- 4.110 km E of Hualien City, Taiwan · 16432 days ago · 17 km deep · 95 km away
- 4.550 km WNW of Yonakuni, Japan · 16411 days ago · 107 km deep · 87 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001fdr. Read Tue, Sep 22, 2026, 10:51 AM UTC.