The strongest earthquake recorded was magnitude 4.6 at 3:55 p.m. Sunday, at a depth of 14 kilometers (9 miles), the Athens Geodynamic Institute said.

Greek authorities have warned of an increase in seismic activity around the Aegean tourist island of Santorini, advising people to avoid four ports, empty their pools, refrain from gathering in indoor spaces and shut schools on Monday.

More than 200 tremors near the island of Santorini have prompted Greek authorities to close schools and tell residents to avoid some ports and drain swimming pools. Earthquake experts say the increase in seismic activity around the Aegean tourist island - known for its whitewashed buildings and black-sand beaches - is not related to volcanic activity.

An earthquake warning has been issued for Greek holiday island Santorini. The Greek holiday island has seen a series of small earthquakes in recent days. Tremors up to 4.6 in magnitude have been recorded, while nearby earthquakes have measured 4.3 and 3.9 magnitude this morning.

Greece's tourist island of Santorini on Sunday braced for the prospect of more tremors after more than 200 small earthquakes shook the site of one of the largest volcanic eruptions in recorded history,

A series of earthquakes near the Greek island of Santorini have led authorities to shut down schools, dispatch rescue teams with sniffer dogs and sent instructions to residents including a request to

Greek authorities have advised people on the Aegean island of Santorini to shut schools on Monday, avoid two small ports and refrain from gathering in indoor spaces after increased seismic activity in the area over recent days.

Dangerous weather conditions have forced schools to close and rendered tourism inadvisable, after inhabitants of the Greek island have seen seismic conditions take a turn for the worse