May 21, 2023. EN. Italy / Sicily : Etna , Mexico : Popocatepetl , Indonesia : Semeru , Colombia : Nevado del Ruiz , Democratic Republic of Congo : Nyamulagira .
May 21 , 2023. Italy / Sicily , Etna : Communique on the activity of Etna, May 21, 2023, 05:51 (03:51 UTC). The National Institute of Geophysics and Volcanology,…