M4.2 earthquake 163 km WNW of Naha, Japan
A magnitude 4.2 earthquake struck 163 km WNW of Naha, Japan on Sat, Jul 26, 1986, 12:26 PM JST (03:26 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 125 km WNW of Naha, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1986-07-26 03:26:09 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 26.667° N, 126.120° 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
- 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: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002whf. Read Tue, Sep 22, 2026, 9:34 PM UTC.