The ground started shaking at around 10:00 AM. Which caused plates to rattle and fall, then shatter.
Black smoke started coming out of Mt. Vesuvius, which got everyone curious.
Buildings start to shake all around, and pumice rains down. People start to get worried.
The black smoke from Mt. Vesuvius has now covered all of Pompeii, causing Pompeii to be very dark.
Everyone is now running from the black smoke, in the pitch dark. Which causes a lot of Chaos and people are yelling and screaming.
After 3 or so hours many people have died, and many buildings have collapsed.
Pompeii is destroyed, and covered with rock and ash, after about 12 hours from the start of the eruption.