M4.6 earthquake 143 km N of Toyooka, Japan
A magnitude 4.6 earthquake struck 143 km N of Toyooka, Japan on Wed, Aug 22, 1973, 10:54 AM JST (01:54 UTC), 383 km (238 mi) below the surface.
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
- 1973-08-22 01:54:19 UTC
- Depth
- 383.0 km (238.0 mi), deep
- Epicenter
- 36.820° N, 134.614° 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
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 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 usp000035d (also filed as iscgem757482). Read Wed, Sep 30, 2026, 5:47 PM UTC.