Anak Krakatau (Indonesia) erupted on 22 December 2018. During the eruption the collapse of the volcano summit triggered a tsunami in Sunda Strait causing a death toll of 437. The first post-event clear-sky image was finally acquired by Sentinel-2 today on 13 Jan 2019 (after 10 cloudy acquisitions). Here is an image comparison of the Krakatau Island before and after the eruption.
Image-comparison of Anak-Krakatau before and after collapse, showing the major changes to the volcanic Island. First photo captured 5th August and second photo taken by @EarthUncutTV today. 1/3 #AnakKrakatau pic.twitter.com/uXcU3cGydt
— Øystein Lund Andersen (@OysteinLAnderse) January 11, 2019