110 likes | 419 Vues
Mt. Etna. LOCATION. Location : Sicily, Italy Location : 37.73 N, 15.00 E Elevation : 10,991 feet Diameter of the base : 36 by 24 miles. TYPE OF VOLCANO. Below an elevation of about 9,500 feet Etna is a shield volcano The upper1,200 feet is a stratovolcano and its made
E N D
LOCATION Location : Sicily, Italy Location : 37.73 N, 15.00 E Elevation : 10,991 feet Diameter of the base : 36 by 24 miles
TYPE OF VOLCANO • Below an elevation of about 9,500 feet • Etna is a shield volcano • The upper1,200 feet is a stratovolcano and its made of several coalesced vents.
ETNA'S DAMAGE • The most dramatic eruptions of Etna was in 1669. • Earthquakes began on February 25th and caused great damage in Nicolosi, about 6 miles south & east of Catania • The eruption began on March 11th as a 7 mile fissure opened • Several more vents formed • On April 12th flows arrived at the walls of Catania. • Lava rose to the top of the wall and went over
CONTINUE ... • Lava also knocked over a section of the wall 120 feet of it. • The city of Catania was completely destroyed • Lava reached the sea on April 23rd • The eruption stopped on July 15th
PLATE TECTONICs Mt. Etna involves the Eurasian plate and African plate. These are converging plates.
HISTORY Etna has a history of at least 190 times that it has erupted. The largest eruption was in 1991 it continued until March 30, 1993. It was the largest in 300 years. Etna started erupting in –1500 B.C.
ETNA'S ACTIVITY Mt. Etna is currently active. Its has been this way for over a million years. Dormant Periods on Mount Etna are very rare. Southern flank of Etna erupting.
TYPE OF ERUPTION Mt. Etna’s eruptions are mostly silent, but some have clicking sounds like glass rubbing glass.
BIBLIOGRAPHY http://volcano.und.edu/ www.volcanolive.com http://www.geo.mtu.edu/volcanoes/