M5.4 earthquake 115 km NW of Yoichi, Japan
A magnitude 5.4 earthquake struck 115 km NW of Yoichi, Japan on Thu, Jun 21, 1979, 11:05 PM JST (14:05 UTC), 233 km (145 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb), moderate
- Local time
- UTC
- 1979-06-21 14:05:47 UTC
- Depth
- 233.0 km (144.8 mi), intermediate-depth
- Epicenter
- 43.890° N, 139.696° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 242
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00011fc (also filed as gcmtb062179a, gcmt19790621140547, iscgem663872). Read Wed, Sep 30, 2026, 10:44 AM UTC.