Santorini to close the schools when the tremor rattling the Greek island

Schools on the Greek island of Santorini were told to close Monday after an increase in seismic activity in recent days.

Authorities have also advised “Grand gatherings in closed spaces” through the island – a popular tourist destination, known for its white buildings and blue domed churches.

Tremor up to 4.6 with magnitude have been recorded in the last few days – with earthquakes with 4.3 and 3.9 magnitude, reported nearby on Sunday morning.

Santorini is what is known as the Hellenic volcanic arc, but the last major eruption was in 1950. The Greek authorities said the last movements were not related to volcanic activity and began to disappear.

Tremirs recorded by geologists are considered insignificant or light, but authorities recommend a number of preventative measures in addition to closing the school, including the avoidance of Amudi and Fira ports.

Large cruise ships often anchor near the old port of Fira, with passengers brought on the shore of smaller boats.

One of the largest volcanic eruptions in history, around 1600 BC, formed the island as it stands today.