M4.4 earthquake 58 km SSE of Yonakuni, Japan
A magnitude 4.4 earthquake struck 58 km SSE of Yonakuni, Japan on Mon, Oct 27, 1986, 5:07 PM JST (08:07 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 74 km SW 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
- 4.4 (mb), light
- Local time
- UTC
- 1986-10-27 08:07:04 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 23.983° N, 123.229° 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: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.630 km E of Yonakuni, Japan · 14582 days ago · 33 km deep · 60 km away
- 4.777 km WSW of Yonakuni, Japan · 14565 days ago · 33 km deep · 89 km away
- 4.368 km SSW of Yonakuni, Japan · 14556 days ago · 33 km deep · 50 km away
- 4.751 km E of Yonakuni, Japan · 14556 days ago · 26 km deep · 65 km away
- 5.074 km SW of Yonakuni, Japan · 14552 days ago · 29 km deep · 71 km away
- 4.941 km NW of Yonakuni, Japan · 14550 days ago · 28 km deep · 99 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002zde. Read Wed, Sep 30, 2026, 9:14 PM UTC.