M3.8 earthquake 9 km NNW of Ishige, Japan
A magnitude 3.8 earthquake struck 9 km NNW of Ishige, Japan on Sat, Feb 26, 1983, 3:48 PM JST (06:48 UTC), 146 km (90 mi) below the surface.
A larger quake followed: M5.9 1 km NE of Nagareyama, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.8 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1983-02-26 06:48:51 UTC
- Depth
- 145.5 km (90.4 mi), intermediate-depth
- Epicenter
- 36.187° N, 139.909° 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.
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 5 in the 30 days before it.
After
- 5.91 km NE of Nagareyama, Japan · 15926 days ago · 78 km deep · 35 km away
- 4.22 km WNW of Narita, Japan · 15912 days ago · 67 km deep · 55 km away
- 4.43 km NNE of Saitama, Japan · 15870 days ago · 88 km deep · 35 km away
- 4.71 km SSW of Iwai, Japan · 15870 days ago · 64 km deep · 17 km away
Before
- 5.14 km NE of Honch?, Japan · 15931 days ago · 79 km deep · 52 km away
- 3.55 km N of Sakura, Japan · 15932 days ago · 78 km deep · 56 km away
- 4.47 km E of Daigo, Japan · 15935 days ago · 121 km deep · 79 km away
- 4.95 km ENE of Tanashich?, Japan · 15957 days ago · 62 km deep · 57 km away
- 4.83 km NE of Musashino, Japan · 15957 days ago · 64 km deep · 58 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001tb7. Read Mon, Oct 5, 2026, 3:53 AM UTC.