Japan earthquakes

M5.8 earthquake 122 km NW of Hirara, Japan

A magnitude 5.8 earthquake struck 122 km NW of Hirara, Japan on Wed, Sep 12, 1973, 8:18 AM JST (23:18 UTC), 141 km (88 mi) below the surface.

Hirara forecastMore in Japan

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.8 (mb), moderate
Local time
UTC
1973-09-11 23:18:50 UTC
Depth
141.0 km (87.6 mi), intermediate-depth
Epicenter
25.645° N, 124.509° 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
CONSTRAINED_BY_DEPTH_PHASES
Stations used
149

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

Earthquakes todayJapan earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00003dk (also filed as iscgem756285). Read Tue, Sep 22, 2026, 10:53 AM UTC.