September 22, 2023. EN. Kamchatka : Klyuchevskoy , Italy : Campi Flegrei , Alaska : Shishaldin , Japan : Nishinoshima , Colombia : Nevado del Ruiz .
September 22 , 2023. Kamchatka , Klyuchevskoy : VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) Issued: September 22 , 2023 Volcano: Klyuchevskoy (CAVW #300260) Current aviation colour code: ORANGE Previous…