M4.3 earthquake 13 km ESE of Nemuro, Japan

A magnitude 4.3 earthquake struck 13 km ESE of Nemuro, Japan on Mon, Jun 18, 1973, 3:22 AM JST (18:22 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.7 83 km ESE of Nemuro, Japan. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 114 in the 60 days after this one and 27 in the 30 days before it.

The first 60 of 114.

From the USGS Earthquake Hazards Program and its partner networks, event usp0000281. Read Tue, Sep 22, 2026, 10:31 PM UTC.