M4.5 earthquake 39 km WSW of Hirara, Japan
A magnitude 4.5 earthquake struck 39 km WSW of Hirara, Japan on Fri, Nov 22, 1985, 9:18 PM JST (12:18 UTC), 38 km (24 mi) below the surface.
A larger quake followed: M5.7 74 km S of Hirara, 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), light
- Local time
- UTC
- 1985-11-22 12:18:06 UTC
- Depth
- 38.1 km (23.7 mi), shallow
- Epicenter
- 24.650° N, 124.953° 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.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.277 km S of Hirara, Japan · 14917 days ago · 30 km deep · 64 km away
- 4.578 km S of Hirara, Japan · 14917 days ago · 33 km deep · 72 km away
- 5.774 km S of Hirara, Japan · 14917 days ago · 21 km deep · 61 km away
- 5.0southwestern Ryukyu Islands, Japan · 14917 days ago · 35 km deep · 60 km away
- 5.066 km S of Hirara, Japan · 14917 days ago · 43 km deep · 57 km away
- 4.476 km S of Hirara, Japan · 14916 days ago · 49 km deep · 64 km away
- 5.350 km ESE of Hirara, Japan · 14892 days ago · 57 km deep · 80 km away
- 4.851 km SSE of Hirara, Japan · 14866 days ago · 84 km deep · 64 km away
- 4.543 km NW of Hirara, Japan · 14866 days ago · 34 km deep · 46 km away
- 4.857 km NW of Hirara, Japan · 14866 days ago · 33 km deep · 64 km away
- 4.753 km NW of Hirara, Japan · 14866 days ago · 27 km deep · 57 km away
- 4.749 km NW of Hirara, Japan · 14866 days ago · 33 km deep · 57 km away
- 4.659 km NW of Hirara, Japan · 14865 days ago · 33 km deep · 58 km away
- 4.937 km NW of Hirara, Japan · 14864 days ago · 33 km deep · 46 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002n2e. Read Tue, Sep 29, 2026, 6:10 PM UTC.