M7.1 earthquake 136 km ENE of Miyako, Japan
A magnitude 7.1 earthquake struck 136 km ENE of Miyako, Japan on Sun, Oct 13, 1935, 1:45 AM JST (16:45 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M7.2 192 km ENE of Miyako, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 7.1 (mw), major
- Local time
- UTC
- 1935-10-12 16:45:23 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 40.176° N, 143.378° 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
- 4.5% of gravity
- Peak ground velocity
- 1.6 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
- ±0.58
- 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: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.7130 km NE of Miyako, Japan · 33218 days ago · 20 km deep · 31 km away
- 5.8137 km ENE of Miyako, Japan · 33218 days ago · 20 km deep · 3 km away
- 5.9185 km ENE of Miyako, Japan · 33217 days ago · 20 km deep · 52 km away
- 7.2192 km ENE of Miyako, Japan · 33212 days ago · 15 km deep · 58 km away
- 6.5185 km ENE of Miyako, Japan · 33212 days ago · 15 km deep · 51 km away
- 5.7172 km ENE of Miyako, Japan · 33212 days ago · 15 km deep · 37 km away
- 5.4197 km ENE of Miyako, Japan · 33211 days ago · 15 km deep · 69 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem904577. Read Tue, Sep 22, 2026, 10:55 AM UTC.