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The craters are at the summit of a broad shield volcano. The eastern crater is about 3000 ft across and 350 ft deep. The western is 2500 ft across and 300 ft deep. The craters are probably former lava lakes similar to Halemaʻumaʻu of the Kīlauea volcano of Hawaii. The volcano is the youngest of the shield volcanoes near Mountain Home and is ...
Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006. A volcano is commonly defined as a vent or fissure 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. [1]
The Jeju Volcanic Island and Lava Tubes (Korean: 제주 화산섬과 용암 동굴) is a World Heritage Site in South Korea. [1] It was inscribed as one of the UNESCO World Heritage Sites in 2007 because of the Geomunoreum Lava Tube System and the exhibition of diverse and accessible volcanic features which are considered to demonstrate a distinctive and valuable contribution to the ...
Yellowstone National Park is home to many of the largest known volcanic eruptions on the planet, and scientists have new research that is helping determine when – and where in the park – the ...
Another volcano on the Big Island is Mauna Loa; a 2013 study estimates Mauna Loa's volume at 83,000 cubic kilometres (20,000 cu mi) which is believed to be an overestimate. [2] [e] Pūhāhonu is so heavy, researchers note, that it has caused Earth's crust nearby—and thus the volcano itself—to sink hundreds of meters over millions of years. [10]
A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile-charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption.
It is the only volcano in the world where visitors can take an elevator and safely descend into the magma chamber. The magma that would normally fill the chamber and become sealed is believed to have drained away, to the bewilderment of scientists, revealing the rift beneath the surface.
Hope's 23,366-square-foot home was designed in 1973 by Lautner to resemble a volcano. The modernist structure is built of concrete and glass, with an undulating copper roof that rises to an open ...