St. Louis County, Missouri. St. Louis County is a county located in the far eastern portion of Missouri. It is bounded by the Mississippi River, the Missouri River, the Meramec River, and the state of Illinois. As of the 2015 Census Bureau population estimate, the population was 1,003,362, making it the most populous county in Missouri.
Mount Vesuvius is best known for its eruption in AD 79 that led to the burying and destruction of the Roman cities of Pompeii, Herculaneum and several other settlements.t was then built up by a series of lava flows, with some smaller explosive eruptions interspersed between them. However, the style of eruption changed around 19,000 years ago to a sequence of large explosive plinian eruptions, of which the 79 AD one was the most recent.
The eruption Pliny the Younger saw occur in 79 A.D. is the famous eruption that completely covered the cities of Pompeii and Herculaneum. Historians estimate that this eruption may have killed over 16,000 people. The main cause of death during this eruption was due to suffocation on the volcanic ash.late Tectonics. As mentioned above, Mount Vesuvius is one of the volcanoes found in the Campanian volcanic arc. Some of the others volcano also found in this arc are Stromboli, Vulcano, Campi Flegrei (Phlegraean Fields) and Mount Etna.