A powerful earthquake measuring 5.1 on the Richter scale shook the island of Hydra on Monday morning. The earthquake occurred in the sea area 53 km South-South-East from the island at 7:27 a.m. local time. The focal depth was 89.9 km. No material damage or injuries have been recorded. The earthquake off Hydra was felt … The post Earthquake 5.1R rattles the island of Hydra, felt in Athens appeared first on Keep Talking Greece.