M4.8 earthquake 56 km E of ?arai, Japan
A magnitude 4.8 earthquake struck 56 km E of ?arai, Japan on Fri, May 2, 1986, 9:43 AM JST (00:43 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M5.2 85 km E of Iwaki, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1986-05-02 00:43:11 UTC
- Depth
- 41.8 km (26.0 mi), shallow
- Epicenter
- 36.337° N, 141.211° 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.852 km ESE of Iwaki, Japan · 14750 days ago · 77 km deep · 70 km away
- 4.27 km NNE of Naka, Japan · 14744 days ago · 87 km deep · 94 km away
- 5.285 km E of Iwaki, Japan · 14741 days ago · 33 km deep · 92 km away
- 4.987 km E of ?arai, Japan · 14740 days ago · 33 km deep · 31 km away
- 4.879 km ESE of Iwaki, Japan · 14701 days ago · 46 km deep · 77 km away
- 4.154 km E of Iwaki, Japan · 14698 days ago · 54 km deep · 88 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002tdw. Read Tue, Sep 22, 2026, 10:20 AM UTC.