AUTHOR=Keir Derek , De Siena Luca , Doubre Cécile , Johnson Jessica H. , Maccaferri Francesco , Passarelli Luigi TITLE=Editorial: Seismicity in Volcanic Areas JOURNAL=Frontiers in Earth Science VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2021.829460 DOI=10.3389/feart.2021.829460 ISSN=2296-6463