M4.5 earthquake 4 km SSW of Ami, Japan
A magnitude 4.5 earthquake struck 4 km SSW of Ami, Japan on Fri, Apr 5, 1974, 4:33 AM JST (19:33 UTC), 76 km (47 mi) below the surface.
A larger quake followed: M4.8 near the east coast of Honshu, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1974-04-04 19:33:06 UTC
- Depth
- 76.0 km (47.2 mi), intermediate-depth
- Epicenter
- 36.001° N, 140.176° 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
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.8near the east coast of Honshu, Japan · 19114 days ago · 33 km deep · 72 km away
- 3.92 km N of Urayasu, Japan · 19105 days ago · 61 km deep · 43 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00005vb. Read Tue, Sep 22, 2026, 7:54 AM UTC.