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 Land Data Metop Sentinel Jason Tags Himawari GOES AHI GOME-2 MSG SEVIRI Third Party MTG Sentinel-3 Sentinel-6 Altimeters Copernicus Metop-C NOAA Metop-B Europe ABI Pacific Ocean Date 2022 2017 SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 13 January 2022 15:00-23:50 UTC and 14 January 04:51 UTC-17 January 04:30 UTC Hunga Tonga-Hunga Ha'apai major eruptions In January 2022 the underwater volcano Hunga Tonga-Hunga Ha'apai in the Pacific Ocean erupted a number of times. Case study 12 August 2017 17:45 UTC—20 August 04:45 UTC Immense smoke from Canadian fires seen over Europe High level smoke from Canadian wildfires, which started raging in early July 2017, could be seen as far as the Alps in August.