M5.9 earthquake 142 km SE of ?hara, Japan
A magnitude 5.9 earthquake struck 142 km SE of ?hara, Japan on Sat, Aug 20, 1927, 8:16 AM JST (23:16 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M6.2 154 km ESE of ?hara, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.9 (mw), moderate
- Local time
- UTC
- 1927-08-19 23:16:55 UTC
- Depth
- 20.0 km (12.4 mi), shallow
- Epicenter
- 34.511° N, 141.672° 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 2.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.2154 km ESE of ?hara, Japan · 36193 days ago · 20 km deep · 25 km away
- 6.5171 km SE of Hasaki, Japan · 36190 days ago · 15 km deep · 42 km away
- 5.7212 km SE of ?hara, Japan · 36189 days ago · 20 km deep · 70 km away
- 5.6157 km SE of Katsuura, Japan · 36188 days ago · 35 km deep · 60 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem909458. Read Tue, Sep 22, 2026, 11:19 AM UTC.