Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Meteosat Sentinel Atmospheric Composition Data Tags OLCI Meteosat Third Generation (MTG) Sentinel-3 SNPP VIIRS AHI 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 Eruption of volcano Aoba (Ambae) in Vanuatu archipelago Vanuatu erupted in the days from 22 September 2017 onward.