Disasters · Earthquake

M4.6 · Japan

First tracked 1 September 2026 · Last updated 1 September 2026

M4.6

Magnitude

74 km

Depth

396,601

Population exposed

400 thousand in MMI III

Exposure detail

An M4.6 earthquake struck 78 km ENE of Mutsu, Japan, at a depth of 74 km. The estimated population exposure was 396,601. No tsunami was generated.

Sources

Source: USGS & GDACS · figures reported · Reviewed