M4.2 earthquake 3 km WSW of Ushiku, Japan
A magnitude 4.2 earthquake struck 3 km WSW of Ushiku, Japan on Sun, Nov 16, 1980, 9:35 AM JST (00:35 UTC), 80 km (50 mi) below the surface.
A larger quake followed: M5.0 12 km NNW of Hasaki, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1980-11-16 00:35:50 UTC
- Depth
- 80.0 km (49.7 mi), intermediate-depth
- Epicenter
- 35.951° N, 140.100° 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.
- Stations used
- 14
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 3 in the 30 days before it.
After
- 3.86 km E of Narita, Japan · 16736 days ago · 83 km deep · 31 km away
- 5.012 km NNW of Hasaki, Japan · 16731 days ago · 60 km deep · 62 km away
- 4.09 km NNW of Hadano, Japan · 16718 days ago · 12 km deep · 100 km away
- 4.70 km SSE of Abiko, Japan · 16688 days ago · 79 km deep · 12 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001auc. Read Tue, Sep 22, 2026, 11:14 AM UTC.