AUTHOR=Pfiffner O. Adrian , Hermanns Reginald L. , Davies Tim R. , Clague John J. TITLE=Editorial: Rock Avalanches JOURNAL=Frontiers in Earth Science VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2021.651642 DOI=10.3389/feart.2021.651642 ISSN=2296-6463