M4.2 earthquake 44 km ESE of Mutsu, Japan
A magnitude 4.2 earthquake struck 44 km ESE of Mutsu, Japan on Fri, Nov 30, 1973, 9:35 AM JST (00:35 UTC), 78 km (48 mi) below the surface.
A larger quake followed: M4.3 77 km ENE of Mutsu, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1973-11-30 00:35:00 UTC
- Depth
- 78.0 km (48.5 mi), intermediate-depth
- Epicenter
- 41.186° N, 141.735° 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
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.377 km ENE of Mutsu, Japan · 19290 days ago · 74 km deep · 51 km away
- 4.448 km SW of Shizunai-furukawach?, Japan · 19289 days ago · 65 km deep · 96 km away
- 4.863 km E of Mutsu, Japan · 19250 days ago · 69 km deep · 20 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00004c2. Read Tue, Sep 22, 2026, 7:45 PM UTC.