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 strong, 6.0-magnitude earthquake struck in the Mediterranean Sea on Wednesday, according to the United States Geological Survey. The temblor happened at 1:51 a.m. Eastern European time about 14 miles southeast of Fry, Greece, data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 6.1.

An earthquake with a magnitude of 5.9 struck off the eastern coast of Crete, Greece’s largest island, in the early hours of Wednesday morning, which was felt as far away as Egypt.The quake hit near the islands of Kasos and Karpathos,