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Aira Caldera is a gigantic volcanic caldera located on the southern end of Kyushu, Japan. It is believed to have been formed about 30,000 years ago with a succession of pyroclastic surges . [ 1 ] [ 2 ] It is currently the place of residence to over 900,000 people.
"Interactive map of the red zone and yellow zone of the Phlegrean Fields". Protezione Civile. "What to do in case of an eruption of the Phlegrean Fields". "Current alert level of the Phlegraean Fields caldera" (in Italian). Vesuvius Observatory
[2] [3] In the inner north of the bay the area of the Wakamiko Caldera within the Aira Caldera erupts volcanic gas which when it reaches the surface of the sea is called Tagiri (which means 'to boil' in Japanese). Hydrothermal vents including volcanic chimneys with rare mineral deposition exist on the bay's sea bottom. [4]
Mount Mazama's eruption timeline, an example of caldera formation. A caldera (/ k ɔː l ˈ d ɛr ə, k æ l-/ [1] kawl-DERR-ə, kal-) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant ...
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In classical antiquity, Europe was assumed to cover the quarter of the globe north of the Mediterranean, an arrangement that was adhered to in medieval T and O maps. Ptolemy's world map of the 2nd century already had a reasonably precise description of southern and western Europe, but was unaware of particulars of northern and eastern Europe.
The volcanic cone Pico do Fogo rises 100 m above the walls of the caldera. A somma volcano , also known as a sommian , is a volcanic caldera that has been partially filled by a new central cone . The type is named after Mount Somma ("Summit"), a stratovolcano in southern Italy [ 1 ] with a summit caldera in which the upper cone of Mount ...