Stefanos Caldera on Nisyros

April 24, 2018

NisirosVolcano (1)

Photographer: Chris Kotsiopoulos
Summary Author: Chris Kotsiopoulos 

The panorama above shows the Stefanos Caldera on the Greek island of Nisyros, a volcanic island in the eastern Aegean Sea. The 1.9 mi to 2.5 mi wide (3-4 km) caldera resides near the center of Nisyros and is thought to have formed no more than 150,000 years ago. Because hydrogen sulfide smoke is constantly emitted from fumaroles in and around the crater, a strong odor is created over the entire alien-like landscape. The volcano is considered active but has not erupted in 130 years. Photo taken on June 9, 2013.