M4.6 earthquake 77 km SW of Yonakuni, Japan
A magnitude 4.6 earthquake struck 77 km SW of Yonakuni, Japan on Tue, Dec 25, 1979, 5:38 AM GMT+8 (21:38 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 7 km ENE of Yonakuni, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1979-12-24 21:38:51 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 23.929° N, 122.507° 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
- OPERATOR_ASSIGNED
- Stations used
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 7 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.2111 km S of Yonakuni, Japan · 17080 days ago · 33 km deep · 71 km away
- 4.014 km NE of Hualien City, Taiwan · 17074 days ago · 65 km deep · 81 km away
- 3.932 km WNW of Yonakuni, Japan · 17059 days ago · 96 km deep · 81 km away
- 4.031 km ESE of Hualien City, Taiwan · 17053 days ago · 33 km deep · 66 km away
- 4.553 km E of Yilan, Taiwan · 17036 days ago · 72 km deep · 98 km away
- 4.87 km ENE of Yonakuni, Japan · 17035 days ago · 106 km deep · 85 km away
- 4.363 km SSW of Yonakuni, Japan · 17031 days ago · 33 km deep · 17 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00014pg. Read Thu, Oct 1, 2026, 12:58 AM UTC.