Lost Roman city found underwater

In 2017, archaeologists confirmed the discovery of the lost Roman city of Neapolis off the coast of Nabeul, in northeast Tunisia

A lost Roman city was found in the waters of northeast Tunisia in 2017 confirmed an old theory that the settlement was swallowed up by a colossal tsunami 1,600 years ago. Divers discovered the remains of streets, monuments, and around 100 tanks used to store garum, a fermented fish sauce sometimes called 'Rome’s ketchup'.

On the morning of July 21, 365 CE, the Mediterranean was rocked by an earthquake with a magnitude of 8.5. The epicenter was in Crete, where most towns were destroyed. Large portions of Greece, Cyprus, Sicily, Spain, and North Africa suffered.

The earthquake caused an uplift of nine metres of the island of Crete.

Neapolis was once the largest centre in the Roman world for the production of garum.