M4.4 earthquake 45 km E of ?hara, Japan
A magnitude 4.4 earthquake struck 45 km E of ?hara, Japan on Tue, Jun 21, 1977, 6:25 AM JST (21:25 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M5.1 10 km SE of T?gane, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1977-06-20 21:25:24 UTC
- Depth
- 26.0 km (16.2 mi), shallow
- Epicenter
- 35.308° N, 140.891° 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
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.513 km NE of ?hara, Japan · 18001 days ago · 35 km deep · 34 km away
- 5.110 km SE of T?gane, Japan · 18001 days ago · 35 km deep · 45 km away
- 4.7near the east coast of Honshu, Japan · 17999 days ago · 30 km deep · 53 km away
- 4.132 km ENE of ?hara, Japan · 17979 days ago · 28 km deep · 13 km away
- 4.13 km SE of Chiba, Japan · 17979 days ago · 76 km deep · 74 km away
- 4.493 km ESE of ?hara, Japan · 17975 days ago · 33 km deep · 58 km away
- 4.827 km S of Hasaki, Japan · 17955 days ago · 52 km deep · 21 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000pd3. Read Sat, Oct 3, 2026, 7:49 PM UTC.