Pompeii by

12:02pm - Sight of unusual cloud

29sum — 2025-09-10 01:13:30 UTC

"A cloud of unusual size and shape" was sighted overtop Mount Vesuvius by Pliny the Younger's mother around noon.

1:00pm - Occurrence of ash

29sum — 2025-09-10 01:19:40 UTC

Ash came out from the eastern part of Mount Vesuvius.

2:00pm - Ash reached Pompeii

29sum — 2025-09-10 01:22:41 UTC

Ash fall was accompanied by white pumice, which accumulated 10 to 15cm per hour. This resulted 280cm thick of pumice at the end.

5:00p - Collapse of roofs

29sum — 2025-09-10 01:32:20 UTC

Roofs started to collapse due to heavy weight of volcanic ash and pumice. The sky was covered by toxic gases, resulting no natural lights to show guidance. In the dark, citizens of Pompeii sought for shelter and ran towards the harbour.

12:00am - Height increased in eruption column

29sum — 2025-09-10 01:37:45 UTC

The eruption column above Mount Vesuvius reached 33km in the atmosphere from 14km and the first pyroclastic surge reached pompeii.

5:30am - Second surge

29sum — 2025-09-10 01:42:57 UTC

A second surge hit north of Pompeii.

6:45am - Pompeii was demolished

29sum — 2025-09-15 01:22:05 UTC