M6.0 earthquake 63 km WSW of Yonakuni, Japan
A magnitude 6.0 earthquake struck 63 km WSW of Yonakuni, Japan on Sat, Oct 23, 1948, 12:47 PM GMT+8 (04:47 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M6.4 63 km SW of Yonakuni, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), strong
- Local time
- UTC
- 1948-10-23 04:47:07 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 24.339° N, 122.387° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.0 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem897606. Read Thu, Oct 1, 2026, 1:11 AM UTC.