M4.8 earthquake 68 km ENE of Mutsu, Japan
A magnitude 4.8 earthquake struck 68 km ENE of Mutsu, Japan on Mon, Aug 12, 1974, 8:23 PM JST (11:23 UTC), 71 km (44 mi) below the surface.
A larger quake followed: M5.3 127 km ENE of Misawa, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1974-08-12 11:23:12 UTC
- Depth
- 71.0 km (44.1 mi), intermediate-depth
- Epicenter
- 41.471° N, 141.995° 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
- 58
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.3127 km ENE of Misawa, Japan · 19040 days ago · 41 km deep · 76 km away
- 3.684 km S of Shizunai-furukawach?, Japan · 19019 days ago · 53 km deep · 23 km away
- 4.770 km ENE of Mutsu, Japan · 19002 days ago · 37 km deep · 5 km away
Before
- 4.042 km SE of Shizunai-furukawach?, Japan · 19058 days ago · 37 km deep · 83 km away
- 4.533 km SE of Shizunai-furukawach?, Japan · 19059 days ago · 35 km deep · 96 km away
- 4.826 km SE of Shizunai-furukawach?, Japan · 19066 days ago · 38 km deep · 96 km away
- 4.122 km SE of Shizunai-furukawach?, Japan · 19066 days ago · 49 km deep · 92 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007k3. Read Wed, Sep 30, 2026, 12:07 PM UTC.