Eruption occurred on Saunders Island

A fresh ash fallout is present on the northwest flank of Mount Michael on Saunders Island in a Landsat 8 satellite image from 28th September 2018. This is a sign that an eruption had recently occurred on this volcano sometime between the days of 23rd September and 28th September.

EDIT: After studying satellite images on the EOSDIS Worldview website, it is most likely that the eruption occurred on the 27th September 2018 based on the wind direction going northwest.

Ash deposits on the northwest flank of Michael Volcano on 28th September. SOURCE: Landsat 8/Sentinel Hub.