M6.6 earthquake 12 km ESE of Toyooka, Japan
A magnitude 6.6 earthquake struck 12 km ESE of Toyooka, Japan on Sat, May 23, 1925, 11:09 AM JST (02:09 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1925-05-23 02:09:46 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 35.518° N, 134.953° E
- Region
- Japan
- Strongest shaking
- VI, strong 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
- VI, strong shaking
- Peak ground acceleration
- 23.5% of gravity
- Peak ground velocity
- 3.3 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
- ±0.32
- 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: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem910508. Read Wed, Sep 23, 2026, 5:19 AM UTC.