Satellite image from 15th October 2017 shows what appears to be a gas emission originating from Mount Michael on Saunders Island. Gas emissions originating from Saunders Island also showed up in satellite images from the 4th and 5th October. Possible aerosols drifting from Saunders Island showed in satellite images from 17th, 19th, and 20th October.
In my view, this is gas related which may interpret elevated activity on Michael Volcano.
Gas emission originating from Mount Michael on 15th October 2017. SOURCE: Aqua/MODIS/NASA.