Nishinoshima volcano (Pacific Ocean, Japan): new eruption, strong fumarolic activity continues

The eruption at Nishinoshima volcano on 4 October (image: JCG)

The eruption at Nishinoshima volcano on 4 October (image: JCG)

The Japan Coast Guard (JCG) published a new series of aerial images of the volcano a couple of days ago.
An explosive eruption occurred from the volcano during an aerial survey on 4 October associated with ongoing abundant gas-steam-laden plumes (degassing). The ash plume rose to above 1,500 meters above the crater. This could mean a likelihood of either a new batch of magma or non-juvenile fragments of solid lava within the conduit.

Dark brown-reddish to green discolored water continues to occur around the entire edifice.
Source: Japan Coast Guard volcano activity update 6 October 2023

The recent aerial observation of Nishinoshima volcano shows new ash emissions from the crater (source: Japan Coast Guard)

The explosion and the ongoing fumarolic activity at the volcano during the aerial survey on 4 October (image: JCG)