M5.8 earthquake 235 km E of Yamada, Japan
A magnitude 5.8 earthquake struck 235 km E of Yamada, Japan on Sun, Apr 9, 1933, 7:30 PM JST (10:30 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M5.9 257 km E 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
- 5.8 (mw), moderate
- Local time
- UTC
- 1933-04-09 10:30:16 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 39.411° N, 144.679° 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
- ±0.29
- 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: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.9257 km E of Miyako, Japan · 34124 days ago · 15 km deep · 55 km away
- 5.4171 km E of Yamada, Japan · 34120 days ago · 15 km deep · 63 km away
- 5.5151 km E of Yamada, Japan · 34118 days ago · 15 km deep · 84 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem905509. Read Tue, Sep 22, 2026, 8:21 AM UTC.