The Turrialba volcano has been more active in recent days, spewing out greater emission of gases and with sound that appears similar to a jet engine.

"The gas column is more abundant, the noise is more noticeable in parts that were it is not usual", said Eliecer Duarte, volcanologist for the OVSICORI.

Turrialba Volcano
© InsideCostaRica
Duarte and other specialists visited the colossus on Thursday and found that the lake that formed in the western crater "blocked" the escape of gas which means they now soar over the entire crater.

"It is a process we have not seen before. The gases are distributed by sector but now gas is emanating 360-degrees around the crater", said Duarte.