M5.8 earthquake 143 km ENE of Hasaki, Japan
A magnitude 5.8 earthquake struck 143 km ENE of Hasaki, Japan on Sat, Jul 31, 1965, 4:36 PM JST (07:36 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M5.9 84 km NE of Hasaki, 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
- 1965-07-31 07:36:30 UTC
- Depth
- 19.2 km (11.9 mi), shallow
- Epicenter
- 36.124° N, 142.346° 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
- ±0.37
- 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: 6 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.782 km NE of Hasaki, Japan · 22285 days ago · 39 km deep · 77 km away
- 5.890 km E of Ōarai, Japan · 22285 days ago · 39 km deep · 71 km away
- 5.879 km E of Ōarai, Japan · 22285 days ago · 43 km deep · 81 km away
- 5.984 km NE of Hasaki, Japan · 22285 days ago · 35 km deep · 74 km away
- 7.073 km E of Ōarai, Japan · 22285 days ago · 41 km deep · 88 km away
- 6.569 km ESE of Takahagi, Japan · 22280 days ago · 40 km deep · 91 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem855738. Read Tue, Sep 22, 2026, 10:57 AM UTC.