Mt Etna Volcano - John Seach

john

Sicily, Italy

37.73 N, 15.00 E,
summit elevation 3350 m
Shield volcano 

Mt Etna is the largest active volcano in Europe. It has an elliptical base (38 x 47 km) and a maximum elevation of about 3350 m. The volcano dominates the landscape of NE Sicily, Italy. The first eruptions at Etna occurred 500,000 years ago.

Mt Etna has the longest period of documented eruptions in the world. Etna is noted for the wide variety of eruption styles. The volcano is at its most spectacular when when both summit and flank eruptions occur simultaneously.

Mt Etna volcano photos by John Seach

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John Seach at summit of Mt Etna. 800 m high lava fountain

mt etna eruption
John Seach at Mt Etna volcano, fimed for Discovery Channel documentary 2000

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Mt Etna gas rings 2000

Mt Etna Mt Etna volcano

Paroxysm, SE crater 2000

Mt Etna volcano, italy
Bocca Nuova eruptions 1999

mt etna volcano
Sapienza, Etna

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Mt Etna

The structure of Mt Etna consists of a series of nested stratovolcanoes, characterised by summit calderas, the most important one being the Ellittico Caldera, which formed about 14,000-15,000 years ago.

Historically Mt Etna has produced effusive activity; however several pyroclastic deposits related to Plinian eruptions have been identified in the Holocene sequence. Under open vent conditions, ash emission only occurs during flank eruptions of Mt Etna volcano.

Structural and seismic data indicate that the regional deformation in the Etnean
area is generally dominated by N-S compression as the result of subduction of the African tectonic plate under the Eurasian plate.