Sousaki ( el, Σουσάκι; ) is a dormant

volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ...

and modern solfatara field in northeastern

Corinthia Corinthia ( el, Κορινθία ''Korinthía'') is one of the regional units of Greece. It is part of the region of Peloponnese. It is situated around the city of Corinth, in the north-eastern part of the Peloponnese peninsula. Geography Cori ...

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...

, at the northwest end of the

South Aegean Volcanic Arc The South Aegean Volcanic Arc is a volcanic arc (chain of volcanoes) in the South Aegean Sea formed by plate tectonics. The prior cause was the subduction of the African plate beneath the Eurasian plate, raising the Aegean arc across what is now ...

. The volcano was active during the

Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...

period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

s of the Earth's geological history. There is still significant solfataric activity at this location. The volcano erupted

dacite Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite. ...

lava.D’Alessandro, W. (2006
''Gas hazard: an often neglected natural risk in volcanic areas''
a chapter in ''Geo-Environment & Landscape Evolution II'' edited by Martin-Duque J.F., Brebbia C.A., Emmanouloudis D.E and Mander U., Southampton, WIT Press, pages 369-378. The geothermal system releases about 1

megagram The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton (United States c ...

per day of

gas Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or ...

es at 42 °C, 90% CO₂ and < 1% each of CH₄ and H₂S. The earthquakes of 1997 of 3-4 R had as a result the uprising magma in higher areas of the earth crust. So future activities are possible. The last eruption of this volcano was a side eruption which created new land in the

Gulf of Megara

The Megara Gulf ({{Lang-el, Κόλπος Μέγαρων, Kolpos ...

, where there are major port and refinery facilities.

References

* W. D'Alessandro ''et al.'', "Natural degassing activity of the geothermal system of Sousaki (Greece): Environmental impact and gas hazard issues", ''8th International Conference on Gas Geochemistry'', 2005. * W. D'Alessandro, "Gas hazard: an often neglected natural risk in volcanic areas"

External links

Volcano Location
{{coord, 37.9368, 23.0872, display=title Volcanoes of Greece Neogene volcanoes Dormant volcanoes Landforms of Corinthia Landforms of Peloponnese (region)