Volcanism and plate tectonics (from Greek τεκτων, tekton, "the building")
Those with more clear the frequency and strength of volcanism in Patagonia are their peoples. The stories of disasters with strong earthquakes and eruptions have been passed from generation to generation through mythical ancient stories and oral tradition, but we have many records of earthquakes and eruptive events that have led to dramatic changes in the lives of men and the Patagonian landscape.
In their journey through Chile embarked on the Beagle and, perhaps as near the Gulf of Ancud, the naturalist Charles Darwin observed the eruption of Volcano Osorno and presented a hypothesis about the possible connection between it and the eruption of two volcanoes in the north (which incidentally was not the Aconcagua as Darwin thought at the time), hypotheses served to begin exploring the theory of plate tectonics, "" I was very surprised to learn later that Aconcagua, in Argentina, 480 miles north, was erupting during the night, and I wondered still more to come to my notice that the great eruption of Coseguina, 2700 miles north of Aconcagua, rash accompanied by an earthquake that was felt in radius of 1000 miles, took place six hours later. It is difficult to venture even to conjecture whether this coincidence is accidental or if there is to see it as proof of some underground communication. "
The head of the high volcanic activity is the so-called Pacific Ring of Fire. At this latitude is the union between the most active tectonic plates, earthquakes and cataclysms epicenter mega volcanic events. So much so that in this geographical area has the highest seismic energy on the planet.
Consider that in Chile there are 3 types of volcanoes. The so-called "cinder cones" -1 - (usually with a cone crack is formed by a basaltic magma to escape), the "strata volcanoes" -2 - (these are compounds, usually taller and explosives), the "volcanoesBoiler "-3 - (formed after a violent explosion.) See graphic
The most recent events:
1906 -> New Volcano Eruption, Nevados de Chillán
1907 -> Riñinahue Volcano Eruption
1908 -> Llaima Volcano Eruption
1908 -> Villarrica Volcano Eruption
1911 -> Eruption of Volcano The Slab
1917 -> Calbuco Volcano Eruption
1921 - 1922 -> Puyehue Volcano Eruption
1929 -> Calbuco Volcano Eruption
1930 -> Tacora Volcano Eruption
1930 -> Pointed Volcano Eruption
1932 -> Quizapu Volcano Eruption
1932 -> Big Headed Volcano Eruption
1933 -> Llaima Volcano Eruption
1933 -> Lonquimay Volcano Eruption
1937-1938 -> Llaima Volcano Eruption
1941 -> Llaima Volcano Eruption
1945 -1946 -> Llaima Volcano Eruption
1948-1949 -> Villarrica Volcano Eruption
1955 -> Carrán Volcano Eruption
1956 - 1957 -> Llaima Volcano Eruption
1960 -> Puyehue Volcano Eruption
1961 -> Calbuco Volcano Eruption
1963 -> Villarrica Volcano Eruption
1964 -> Villarrica Volcano Eruption
1967 -> Eruption at Deception Island
1971 -> Hudson Volcano Eruption
1971 -> Villarrica Volcano Eruption
1984 -> Villarrica Volcano Eruption
1989 -> Lonquimay Volcano Eruption
1991 -> Hudson Volcano Eruption
1971 -> Villarrica volcano erupted and destroyed Coñaripe.
2008 -> Chaitén volcano erupts and destroys the city of the same name.
* 1960 -> Valdivia Earthquake (9.5 degrees, the highest recorded on the Richter seismic scale)
