This animated GIF shows a pair of radar amplitude images that were acquired by the Italian Space Agency’s Cosmo-SkyMed satellite system. The images illustrate changes to the caldera area of Kīlauea Volcano that occurred between May 23 at 6:00 p.m. HST and May 31 at 6:00 p.m. HST.
Source: https://www.khon2.com/news/local-news/drone-captures-dramatic-changes-in-halemaumau-crater/1213916576