M4.6 earthquake 141 km ESE of Yamada, Japan
A magnitude 4.6 earthquake struck 141 km ESE of Yamada, Japan on Mon, Apr 10, 1978, 12:34 AM JST (15:34 UTC), 31 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1978-04-09 15:34:44 UTC
- Depth
- 31.0 km (19.3 mi), shallow
- Epicenter
- 39.046° N, 143.500° 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
- 45
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.471 km ESE of ?funato, Japan · 17657 days ago · 53 km deep · 92 km away
- 4.593 km ESE of Kamaishi, Japan · 17647 days ago · 33 km deep · 56 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000u02. Read Tue, Sep 22, 2026, 10:01 AM UTC.