M4.5 earthquake 46 km SE of Hasaki, Japan
A magnitude 4.5 earthquake struck 46 km SE of Hasaki, Japan on Mon, Jun 16, 1986, 10:58 PM JST (13:58 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.6 46 km SSE of Katsuura, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1986-06-16 13:58:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 35.416° N, 141.170° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (II JMA) at Choshi and (I JMA) at Mito.
From the USGS event page for usp0002v3s. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.646 km SSE of Katsuura, Japan · 14713 days ago · 63 km deep · 87 km away
- 5.447 km SE of Katsuura, Japan · 14712 days ago · 65 km deep · 83 km away
- 4.756 km SE of Katsuura, Japan · 14709 days ago · 62 km deep · 89 km away
- 4.028 km E of Hasaki, Japan · 14687 days ago · 33 km deep · 31 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002v3s. Read Mon, Oct 5, 2026, 3:45 AM UTC.