Update: 5.5 magnitude earthquake hits close to Volcano Islands, Japan region on Oct. 4

Published Oct 4, 2026

CHIISAGATA DISTRICT, Nagano — A 5.5 magnitude quake struck close to Volcano Islands on Sunday night, according to the U.S. Geological Survey.

The tremor, which shook the area at 11:12 UTC (21:12 local time), was centered of Volcano Islands. It occurred at a depth of 10 km.

Did you feel it?

You can let the USGS know if you experienced the earthquake by filling out their Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage.

Structure information summary

There are likely to be no affected structures in this region.

Source: The U.S. Geological Survey