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 Meteosat Sentinel Data Tags Meteosat Third Generation (MTG) Sentinel-3 Himawari VIIRS AHI OLCI SNPP 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.