M4.8 earthquake 25 km ESE of Watari, Japan
A magnitude 4.8 earthquake struck 25 km ESE of Watari, Japan on Sat, Feb 28, 1987, 4:32 PM JST (07:32 UTC), 92 km (57 mi) below the surface.
A larger quake followed: M6.7 71 km E of Namie, 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
- 1987-02-28 07:32:43 UTC
- Depth
- 91.7 km (57.0 mi), intermediate-depth
- Epicenter
- 37.936° N, 141.117° 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 1.8 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.836 km ESE of Namie, Japan · 14450 days ago · 62 km deep · 67 km away
- 4.851 km E of Iwaki, Japan · 14446 days ago · 56 km deep · 96 km away
- 6.771 km E of Namie, Japan · 14413 days ago · 29 km deep · 87 km away
- 4.112 km N of Namie, Japan · 14404 days ago · 118 km deep · 40 km away
- 5.042 km E of Namie, Japan · 14400 days ago · 61 km deep · 59 km away
- 6.762 km E of Iwaki, Japan · 14397 days ago · 30 km deep · 96 km away
- 4.361 km SE of Namie, Japan · 14397 days ago · 55 km deep · 94 km away
- 4.631 km SE of Namie, Japan · 14396 days ago · 57 km deep · 75 km away
- 4.256 km SE of Namie, Japan · 14394 days ago · 60 km deep · 90 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00032vd. Read Tue, Sep 22, 2026, 12:56 AM UTC.