ΚΑΤΑΤΑΞΗ ΗΦΑΙΣΤΕΙΟΥ ΣΑΝΤΟΡΙΝΗΣ ΑΝΑΜΕΣΑ ΣΕ ΑΛΛΑ ΥΠΕΡ-ΗΦΑΙΣΤΕΙΑ

ΤΟ ΗΦΑΙΣΤΕΙΟ ΤΗΣ ΣΑΝΤΟΡΙΝΗΣ ΤΟ ΚΑΤΑΤΑΣΣΟΥΝ ΣΕ ΠΑΓΚΟΣΜΙΟ ΚΑΤΑΛΟΓΟ ΣΟΥΠΕΡ ΗΦΑΙΣΤΕΙΩΝ

Name of Volcano	VEI	Continent	Country	Location	Last eruption	Last activity	Status	Details
High Island	8	Asia	China	Hong Kong	~140 million years ago	No data
Island Park Caldera	8	North-America	USA	State of Idaho	2.1 million years ago	26.12.2012
La Garita Caldera	8	North-America	USA	State of Colorado	~27.8 million years ago	No data
Lake Taupo	8	Australia - New-Zealand	New Zealand	North Island	~26,500 years ago	20.12.2012
Lake Toba	8	Indonesian Archipelago	Indonesia	Northern Sumatra	~74,000 years ago	..
Whakamaru	8	Australia - New-Zealand	New Zealand	North Island	~254,000 years ago	20.12.2012
Yellowstone Caldera	8	North-America	USA	State of Wyoming	640,000 years ago	26.12.2012
Aira Caldera	7	Asia	Japan	Island of Kyushu	~22,000 years ago	..
Baekdu Mountain	7	Asia	China	The border North Korea and China	~969 CE	No data
Campi Flegrei	7	Europe	Italy	Naples	~39,280 years ago	17.12.2012
Kikai Caldera	7	Asia	Japan	Osumi Islands, Kagoshima Prefecture	~6,300 years ago	..
Laacher See	7	Europe	Germany	Rhineland-Palatinate	~12,900 years ago	16.12.2012
Long Valley Caldera	7	North-America	USA	State of California	~760,000 years ago	25.12.2012
Mount Aso	7	Asia	Japan	Island of Kyushu, Kumamoto Prefecture	~80,000 years ago	22.12.2012
Mount Tambora	7	Indonesian Archipelago	Indonesia	Sumbawa Island	1815	23.12.2012
Reporoa Caldera	7	Australia - New-Zealand	New Zealand	Taupo Volcanic Zone	230,000 years ago	20.12.2012
Santorini Volcano	7	Europe	Greece	Island of Thera	1927	27.12.2012
Valles Caldera	7	North-America	USA	Jemez Mountains, State of New Mexico	~1.12 million years ago	..
VEI : Volcanic Explosivity Index (1-8) NOTICE! This is just an information system! Classification The VEI associated with an eruption is dependent on how much volcanic material is thrown out, to what height, and how long the eruption lasts; with the indices running from 0 to 8. The scale is logarithmic from VEI 2 and up; an increase of 1 index indicates an eruption that is 10 times as powerful. As such there is a discontinuity in the definition of the VEI between indices 1 and 2. The lower border of the volume of ejecta jumps by a factor of 100 from 10,000 to 1,000,000 m3 (350,000 to 35,000,000 cu ft) while the factor is 10 between all higher indices. VEI Ejecta volume Classification Description Plume Frequency Tropospheric injection Stratospheric injection[2] Examples 0 < 10,000 m³ Hawaiian effusive < 100 m constant negligible none Kīlauea, Piton de la Fournaise, Erebus 1 > 10,000 m³ Hawaiian / Strombolian gentle 100–1000 m daily minor none Stromboli, Nyiragongo (2002) 2 > 1,000,000 m³ Strombolian / Vulcanian explosive 1–5 km weekly moderate none Galeras (1993), Mount Sinabung (2010) 3 > 10,000,000 m³ Vulcanian / Peléan severe 3–15 km few months substantial possible Nevado del Ruiz (1985), Soufrière Hills (1995) 4 > 0.1 km³ Peléan / Plinian cataclysmic 10–25 km ≥ 1 yr substantial definite Mount Pelée (1902), Eyjafjallajökull (2010) 5 > 1 km³ Plinian paroxysmal 20–35 km ≥ 10 yrs substantial significant Mount Vesuvius (79 CE), Mount St. Helens (1980) 6 > 10 km³ Plinian / Ultra-Plinian colossal > 30 km ≥ 100 yrs substantial substantial Krakatoa (1883), Mount Pinatubo (1991) 7 > 100 km³ Ultra-Plinian super-colossal > 40 km ≥ 1,000 yrs substantial substantial Mazama (c. 5600 BCE), Thera (c. 1620 BCE), Tambora (1815) 8 > 1,000 km³ Supervolcanic mega-colossal > 50 km ≥ 10,000 yrs substantial substantial Yellowstone (640,000 BP), Toba (74,000 BP) A total of 47 eruptions of VEI 8 magnitude or above, ranging in age from Ordovician to Pleistocene, have been identified, of which 42 occurred in the past 36 million years. The most recent is Lake Taupo's Oruanui eruption, 26,500 years ago, which means that there have not been any Holocene (within the last 10,000 years) eruptions with a VEI of 8.[3] There have been at least 5 identified Holocene eruptions with a VEI of 7. There are also 58 plinian eruptions, and 13 caldera-forming eruptions, of large, but unknown magnitudes. There are likely many other eruptions that are not identified. http://hisz.rsoe.hu http://en.wikipedia.org/wiki/Volcanic_Explosivity_Index