Santorini has been hit by a powerful, shallow 5.3 magnitude earthquake, which is the strongest to strike the Greek island during recent seismic activity in the area. The tremors were felt in Athens on Monday evening and measured a focal depth of 17km (10.6 miles).

On Monday, a magnitude 5.3 earthquake struck in the sea area between Santorini and Amorgos in the Cyclades. This seismic event, noted as the strongest in recent weeks, resulted in no casualties or damage reported. The epicenter of the earthquake was located in the sea area 14 kilometers south-southwest of Amorgos.

How long will the state of emergency last? It’s very difficult to predict how long the earthquakes will last and, as a result, when the state of emergency will come to an end. But authorities have said activity could go on for weeks.

The Greek island has a long history of earthquakes, but what is causing the recent series of quakes has scientists perplexed.

Repeated earthquakes are rattling Greece’s volcanic island of Santorini. Scientists say the quakes aren't related to a slight increase in volcanic activity that has also been registered recently.

A state of emergency has been declred in Santorini, a volcanic island and popular tourist destination in Greece, as an 'earthquake swarm' that began earlier this month continues. Since 31 January, more than 800 tremors with a magnitude of three and above have been recorded.

Greece has declared a state of emergency on Santorini after hundreds of undersea earthquakes shook the resort island for nearly a week.