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Transcript of CALBUCO ERUPTION
The ash fall from the eruption has also dealt a blow on local salmon fisheries, with companies moving millions of their fry and smolt stocks out of fear of getting smothered by volcanic debris.
This eruption wasn't predicted and was a surprise to the public and scientists.
The director of the National Mining and Geology service warned that rains could lead to devastating volcanic mud, known as lahars, which are capable of leveling anything in their path once in motion. “Lahars are possible if we get heavy rains, so it’s still a concern,” said Rodrigo Alvarez, the head of the service. “This eruption should begin to lessen in the coming hours and we’ll have new forecasts. For now we remain on high alert.”
EFFECTS OF THE ERUPTION
CAUSE OF THE ERUPTION
It is one of the most active volcanoes in Chile and is known to erupt explosively. The largest witnessed eruption of Calbuco occurred in 1893.
Volcanoes typically show signs of unrest for weeks, months and sometimes even years prior to an eruption. Unrest may include a slow inflation, or the swelling of magma in the volcano; increased earthquake activity beneath the volcano; and an increase in the amount and type of gas escaping from the volcano. The only sign of activity from Calbuco was increased gas venting in 1996; since then, it has been quiet.
Wednesday, April 22 2015
Vol XCIII, No. 311
ABOUT THE VOLCANO
The Calbuco volcano is a STRATOVOLCANO which is also known as a COMPOSITE VOLCANO.
CALBUCO ERUPTS AGAIN
The Calbuco volcano is located in the Los Lagos Region and close to Puerto Montt in SOUTHERN CHILE.