Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Atmospheric Composition Data Meteosat Sentinel Tags Sentinel-3 SNPP VIIRS AHI OLCI Meteosat Third Generation (MTG) Himawari Date 2017 Date September 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.