On 1st August 2014, I noticed a grey area to the west of Saunders Island on the EOSDIS Worldview website taken by Terra/MODIS. There's a possibilty that it could've been an ash plume from a short lived eruption which drifted away in the winds, or it could just simply be a colouration in contrast with the sea and ice which is hard to identify given the low quality satellite image.
Images from the 7th August 2014 on the Earth Explorer website showed a slight degassing from the summit crater of Mount Michael on Saunders Island. Upon checking the thermal image of Saunders Island from the same date, I discovered that the thermal anomalies which were visible inside the two craters of Mount Michael on 22nd July 2014 were no longer visible. In the thermal image of Candlemas Island from the 7th August 2014, a thermal anomaly is present on Lucifer Hill on the northside of the island. This is likely to be nothing more than fumarolic activity.
|Was that an ash plume drifting away from the west side of Saunders Island on the 1st August? SOURCE: NASA.|
|Just a little steam or gas emission from Mount Michael's summit crater. SOURCE: Landsat 8/USGS/NASA.|
|Thermal anomaly on Candlemas Island. SOURCE: Landsat 8/USGS/NASA.|