M4.6 earthquake 59 km SE of ?funato, Japan
A magnitude 4.6 earthquake struck 59 km SE of ?funato, Japan on Mon, Aug 28, 1978, 8:30 AM JST (23:30 UTC), 47 km (29 mi) below the surface.
A larger quake followed: M4.9 133 km ESE of ?funato, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1978-08-27 23:30:02 UTC
- Depth
- 47.0 km (29.2 mi), shallow
- Epicenter
- 38.762° N, 142.277° 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
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.080 km ESE of Ishinomaki, Japan · 17552 days ago · 59 km deep · 72 km away
- 4.9133 km ESE of ?funato, Japan · 17533 days ago · 33 km deep · 74 km away
- 5.4142 km ESE of ?funato, Japan · 17531 days ago · 31 km deep · 83 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000w8f. Read Tue, Sep 22, 2026, 4:10 PM UTC.