November 21, 2020. EN. Alaska : Semisopochnoi , Indonesia : Merapi , Chile : Nevados of Chillan , Guatemala : Santiaguito .
November 21 , 2020. Alaska , Semisopochnoi : AVO/USGS Volcanic Activity Notice Current Volcano Alert Level: UNASSIGNED Previous Volcano Alert Level: ADVISORY Current Aviation Color Code: UNASSIGNED Previous…