M4.5 earthquake 50 km NNE of Ishigaki, Japan
A magnitude 4.5 earthquake struck 50 km NNE of Ishigaki, Japan on Wed, Apr 9, 1986, 3:44 AM JST (18:44 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 62 km NE 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1986-04-08 18:44:25 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 24.751° N, 124.382° 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: 3 in the 60 days after this one and 7 in the 30 days before it.
After
- 5.162 km NE of Yonakuni, Japan · 14777 days ago · 33 km deep · 100 km away
- 4.173 km WNW of Hirara, Japan · 14767 days ago · 33 km deep · 31 km away
- 4.576 km NE of Yonakuni, Japan · 14760 days ago · 72 km deep · 88 km away
Before
- 4.788 km NE of Yonakuni, Japan · 14788 days ago · 11 km deep · 100 km away
- 4.786 km NE of Yonakuni, Japan · 14802 days ago · 33 km deep · 80 km away
- 4.571 km NE of Yonakuni, Japan · 14803 days ago · 33 km deep · 89 km away
- 4.477 km NW of Ishigaki, Japan · 14804 days ago · 33 km deep · 73 km away
- 4.571 km NE of Yonakuni, Japan · 14804 days ago · 33 km deep · 97 km away
- 4.4103 km NNW of Ishigaki, Japan · 14805 days ago · 33 km deep · 74 km away
- 4.237 km E of Ishigaki, Japan · 14814 days ago · 33 km deep · 48 km away
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ss2. Read Sat, Oct 3, 2026, 4:17 PM UTC.