eruption of mount vesuvius in 79 ad, stratovolcano in italy, history map

vesuvius mount eruption volcano pompeii map herculaneum stratovolcano roman italy italian pompei bay volcanic vesuvian vesuvio town ad history gulf naples capri ischia buried destroyed ash cloud pyroclastic ashfall pumice hot molten rock lava pyroclastic flow neapolis salernum surrentum oplontis misenum tyrrhenian sea island distribution napoli bay europe phlegraean fields geography infographic vector