The lava flow and debris avalanches deepened and partially filled the chute in Sciara del Fuoco that, in turn, created the new lava delta beyond the shoreline by accumulating and extending new lava material (image: Sentinel-1)
In the attached Synthetic Aperture Radar (SAR) animation provided by Sentinel-1, considerable morphological changes on Sciara del Fuoco are detectable following the recent elevated explosive-effusive eruptive period in early-to-mid July.
Significant portions of the northern crater terrace facing the Sciara del Fuoco have disappeared due to recent collapse events, which also formed a deep canyon in the center of the Sciara where the lava flow had been. This flow expanded the shoreline, creating a large new triangular delta.