M5.5 earthquake 38 km WNW of Kushiro, Japan
A magnitude 5.5 earthquake struck 38 km WNW of Kushiro, Japan on Sat, Oct 9, 1971, 8:05 PM JST (11:05 UTC), 115 km (72 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1971-10-09 11:05:08 UTC
- Depth
- 115.3 km (71.6 mi), intermediate-depth
- Epicenter
- 43.045° N, 143.912° E
- Region
- Japan
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 2.0% of gravity
- Peak ground velocity
- -0.2 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.33
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 iscgem779167. Read Tue, Sep 22, 2026, 6:12 AM UTC.