AUTHOR=Martinelli Giovanni , Peresan Antonella , Li Ying TITLE=Editorial: Achievements and New Frontiers in Research Oriented to Earthquake Forecasting JOURNAL=Frontiers in Earth Science VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2021.793911 DOI=10.3389/feart.2021.793911 ISSN=2296-6463