A strong, 6.0-magnitude earthquake struck in the Mediterranean Sea on Wednesday, according to the United States Geological Survey. Greece's Ministry for Climate Crisis and Civil Protection warned on social media of a tsunami risk for parts of the nation's coast.

An earthquake occurred in Crete, which has caused a tsunami warning to be issued. Here's what it means if you're in the Crete and Greece areas.

A powerful earthquake struck near the Greek island of Kasos early Wednesday, prompting tsunami warnings and widespread alerts across the southeastern Aegean.