Image: SantaAnavolcano

Description: Lake Coatepeque is a lake of volcanic origin located in the Los Volcanes National Park in El Salvador. In the past few weeks, the colour of its water changed from dark blue to turquoise. The director of the Coatepeque Foundation, which works to protect the area, attributes the phenomenon to the interaction between the fresh water that reached the lake as a result of recent rains and the volcanic material deposited on the bottom of the lake. The unusual phenomenon was captured by one of the Copernicus Sentinel-2 satellites on 24 August.
Title: SantaAnavolcano
Credit: https://www.copernicus.eu/en/media/image-day-gallery/lake-coatepeque-turned-turquoise
Author: European Union, Copernicus Sentinel-2 imagery
License: Attribution