M6.6 earthquake 154 km E of Miyako, Japan
A magnitude 6.6 earthquake struck 154 km E of Miyako, Japan on Sun, May 1, 1955, 6:55 PM JST (09:55 UTC), 10 km (6 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
- 1955-05-01 09:55:19 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 39.729° N, 143.741° 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
- ±0.28
- 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: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.2163 km E of Miyako, Japan · 26077 days ago · 10 km deep · 11 km away
- 6.1129 km E of Miyako, Japan · 26075 days ago · 25 km deep · 25 km away
- 6.0137 km ENE of Miyako, Japan · 26073 days ago · 20 km deep · 48 km away
- 6.2120 km ENE of Miyako, Japan · 26043 days ago · 37 km deep · 62 km away
- 6.189 km ENE of Miyako, Japan · 26043 days ago · 30 km deep · 82 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem889485. Read Tue, Sep 22, 2026, 8:52 PM UTC.