Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Sentinel Atmospheric Composition Data Meteosat Tags Meteosat Third Generation (MTG) Sentinel-3 SNPP VIIRS AHI OLCI Himawari Date 2017 SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 22 September 2017 17:00–25 September 06:30 UTC and 1 October 19:00–21:00 UTC EUMETSAT Science Blog Eruption of volcano Aoba (Ambae) in Vanuatu archipelago Vanuatu erupted in the days from 22 September 2017 onward.