Find even more volcano content with Twig Science Reporter — watch now! 👉 https://bit.ly/3we8ooE In 79 AD, Pompeii was a thriving Roman city. Little did the people know that nearby Mount Vesuvius was about to erupt, destroying the entire city and encasing it in ash for nearly 1500 years. Watch this video to find out more about what happened when Mount Vesuvius erupted, and learn terms like pyroclastic surge, pumice and asphyxiation.