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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 ...
The Paleontological Museum of Caldera (abbreviated MPC) is a natural history museum located in the commune of Caldera, Atacama Region, Chile.Since its establishment in 2006, it is dedicated to the protection and preservation of the fossil record of Caldera and related areas, including the nearby coasts, and has been instrumental in the conservation of remains from emblematic fossiliferous ...
This brisk and robust seismic activity is common in volcanic areas, such as Long Valley Caldera near Mammoth Lakes, and Yellowstone Caldera at Yellowstone. The Coso Volcanic Field shows examples of volcanic activity, probably last active 30,000 to 40,000 years ago, but ash emission and small cone building episodes may be Holocene (>10,000 years ...
Approximately 12,000 years ago the last major eruption occurred, forming a smaller caldera inside the main caldera, with its centre where the town of Pozzuoli lies today. Third Phlegraean Period, between 8,000 and 500 years ago. [9] This is characterized by white pozzolana, the material that forms the majority of volcanos in the Fields.
The Alban Hills (Italian: Colli Albani) are the caldera remains of a quiescent volcanic complex in Italy, located 20 km (12 mi) southeast of Rome and about 24 km (15 mi) north of Anzio. The 950 m (3,120 ft) high Monte Cavo forms a highly visible peak in the centre of the caldera, but the highest point is Maschio delle Faete approximately 2 km ...
Nemrut has a distinct caldera with an area of 46.7 km 2 and a volume of 32.9 km 3; the maximum height of the edge of the caldera is 2,935 m (9,629 ft) above sea level (Sivritepe, on the northern edge of the caldera). [15] The average height of the walls of the caldera, measuring from its bottom, is 600 m (2,000 ft).
The Tierra Blanca Joven eruption of Lake Ilopango was the largest volcanic eruption in El Salvador during historic times, and one of the largest volcanic events on Earth in the past 7,000 years, registering at 6 on the Volcanic explosivity index (VEI), and dating back to the mid 5th century A.D.
It was the last in a series of at least four caldera-forming eruptions there, the earlier known caldera having formed about 1.2 million years ago. [3] This, the last eruption, had an estimated volcanic explosivity index of 8, making it the largest known explosive volcanic eruption in the Quaternary , and one of the largest known explosive ...