Α light tremor measuring 4.4 on the Richter scale was recorded at 08:09 on Tuesday in the sea 16 km south of Nisyros island and 351 km east-southeast of Athens, according to the Geodynamics Institute of the Athens National Observatory.
The small round island of Nisyros is one of the more active but less known volcanoes in Greece. It is located south of the popular beach holiday island of Kos.
The volcano is part of the Hellenic Arc, a curved line of volcanic centers which are caused by a subduction zone, and stretches from the Saronic Gulf opposite Athens via the island groups of Milos, Santorini.
The last eruption of Nisyros were phreatic explosions in 1881-87