M4.7 earthquake 85 km NE of Hasaki, Japan
A magnitude 4.7 earthquake struck 85 km NE of Hasaki, Japan on Thu, Jul 27, 1978, 9:43 PM JST (12:43 UTC), 52 km (32 mi) below the surface.
A larger quake followed: M5.1 102 km ENE 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
- 4.7 (mb), light
- Local time
- UTC
- 1978-07-27 12:43:37 UTC
- Depth
- 52.0 km (32.3 mi), shallow
- Epicenter
- 36.210° N, 141.574° 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
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.1102 km ENE of Hasaki, Japan · 17589 days ago · 32 km deep · 22 km away
- 4.5112 km ENE of Hasaki, Japan · 17586 days ago · 35 km deep · 34 km away
- 4.821 km ENE of Hasaki, Japan · 17552 days ago · 33 km deep · 65 km away
- 4.251 km E of Iwaki, Japan · 17545 days ago · 80 km deep · 96 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000vtp. Read Tue, Sep 22, 2026, 8:02 AM UTC.