M4.5 earthquake 62 km ENE of Mutsu, Japan
A magnitude 4.5 earthquake struck 62 km ENE of Mutsu, Japan on Mon, Aug 10, 1987, 8:17 PM JST (11:17 UTC), 70 km (43 mi) below the surface.
A larger quake followed: M4.9 68 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
- 4.5 (mb), light
- Local time
- UTC
- 1987-08-10 11:17:55 UTC
- Depth
- 69.5 km (43.2 mi), shallow
- Epicenter
- 41.513° N, 141.898° 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.
- Depth from
- FROM_LOCATION
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 4 in the 30 days before it.
After
- 4.445 km NE of Mutsu, Japan · 14262 days ago · 33 km deep · 21 km away
- 4.968 km ENE of Mutsu, Japan · 14248 days ago · 74 km deep · 12 km away
Before
- 4.867 km ESE of Mutsu, Japan · 14290 days ago · 75 km deep · 45 km away
- 4.741 km S of Shizunai-furukawach?, Japan · 14294 days ago · 72 km deep · 68 km away
- 5.022 km ENE of Mutsu, Japan · 14298 days ago · 116 km deep · 40 km away
- 4.237 km ENE of Hakodate, Japan · 14302 days ago · 138 km deep · 74 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00037dy. Read Tue, Sep 22, 2026, 9:36 PM UTC.