Search results
Results from the WOW.Com Content Network
Aira caldera is located at Kyushu, the southernmost island of Japan. The supervolcano peaks at 1117 m. [6]The eruption forming the Aira Caldera, occurred approximately 30,000 years ago, and resulted in tephra and ignimbrite from a vast amount of magma affecting the nearby land.
A volcano that once existed in the northern part of Kagoshima Bay caused an eruption called the Great Aira Eruption about 25,000 years ago, forming the Aira Caldera. Aira City is located on the northwest side of this caldera, on the somma, and there is a stratum called Shirasu, which originated from pyroclastic flows that flowed out during a ...
Aira Caldera: Kyūshū: 940 - 1,040 [2] 30 [3] Ito Ignimbrite 6 Nemo Peak: Onekotan, Kuril Islands: 10 30.8 Nemo III 6 Shiveluch: Kamchatka >30 32.2 caldera formation 6 Volcán Los Azufres: Trans-Mexican Volcanic Belt 11 32.8 Cieneguillas Ignimbrite 6 Morne Trois Pitons: Dominica, Lesser Antilles island arc 58 33.3 Roseau Tuff/Ignimbrite 7 Lake ...
Part of at least 20 large caldera-forming eruptions in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma [20] Mount Princeton—Wall Mountain tuff 35.3 Thirtynine Mile volcanic area, Colorado 1,000 Helped cause the exceptional preservation at Florissant Fossil Beds National Monument [42] Aira Caldera: 0.03 Kyushu ...
[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]
The resulting caldera is over 20 km (12 mi) across. Tephra fell as far as 1,000 km (620 mi) from the volcano. Sakurajima is a modern active vent of the same Aira caldera volcano. Sakurajima was formed by later activity within the caldera, beginning about 13,000 years ago. [9] It is about 8 km (5 mi) south of the centre of the caldera.
About 24,000 years ago, Aira Caldera, corresponding to Kagoshima Bay and larger areas, erupted a number of times, with the volcanic ash reaching as far as Hokkaido as well as forming Shirasu-Daichi through pyroclastic flows. As of 2005, about 40 archaeological sites of the Lower Paleolithic era had been found in Kagoshima Prefecture.
Bismarck volcanic arc, Pago volcano, New Britain, Papua New Guinea, is a young post-caldera cone within the Witori Caldera. The Buru Caldera cuts the SW flank of the Witori volcano. [2] Sakurajima, Kyūshū, Japan, is a volcano of the Aira Caldera.