Authorities have declared a state of emergency on a second Greek island as a series of earthquakes continued to rattle the south-eastern Aegean Sea region.

Seismologists have noted that the epicentre of the earthquakes is steadily drifting northward in the direction of Amorgos.

Anafi Island in Greece has become the third Greek island to enter a state of emergency as powerful earthquake tremors intensify in waters near the popular tourist destination of Santorini in recent days.

A state of emergency has been declared on Amorgos as a series of earthquakes has reignited fears, with the epicentre seemingly shifting north towards the island