M4.5 earthquake 177 km NE of Miyako, Japan
A magnitude 4.5 earthquake struck 177 km NE of Miyako, Japan on Mon, Apr 27, 1981, 3:42 PM JST (06:42 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1981-04-27 06:42:38 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 40.616° N, 143.599° 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: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ddm. Read Fri, Oct 2, 2026, 12:46 AM UTC.