Novarupta - Wikipedia
Novarupta [a] is a volcano that was formed in 1912, located on the Alaska Peninsula on a slope of Trident Volcano in Katmai National Park and Preserve, about 290 miles (470 km) southwest of Anchorage. Formed during the largest volcanic eruption of the 20th century, Novarupta released 30 times the volume of magma of the 1980 eruption of Mount St ...
Novarupta - The Most Powerful Volcanic Eruption of the 20th ...
Novarupta Volcano Erupts! On June 6th, 1912, a tremendous blast sent a large cloud of volcanic ash skyward, and the eruption of the century was underway. People in Juneau, Alaska, about 750 miles from the volcano, heard the sound of the blast – over one hour after it occurred.
Novarupta | Alaska, Map, Volcano, & Facts | Britannica
Novarupta, volcanic vent and lava dome, southern Alaska, U.S., located at an elevation of 841 metres (2,759 feet) within Katmai National Park and Preserve. Its violent eruption, which began on June 6, 1912, and lasted 60 hours, is considered the largest volcanic eruption of the 20th century.
Novarupta - Global Volcanism Program
Novarupta, the least topographically prominent volcano in the Katmai area, was formed during a major eruption in 1912. This eruption was the world's largest during the 20th century and produced a voluminous rhyolitic airfall tephra and the renowned Valley of Ten Thousand Smokes (VTTS) ash flow.
Valley of Ten Thousand Smokes and the 1912 Novarupta …
The Plinian style eruption at Novarupta on June 6-8, 1912 was the world’s largest volcanic eruption of the 20th century and one of the five largest in recorded history. No volcanic eruption since Tambora in 1815 has surpassed it.
The Great Eruption of 1912 - U.S. National Park Service
Many aspects of the three-day explosive eruption at Novarupta in June 1912 focused attention on this remote volcano, and it has become one of the most intensively studied in the world. Its eruptive volume of 3.1-3.4 mi3 (13-14 km3) of magma places it …
Alaska Volcano Observatory | Novarupta
2022年3月18日 · Prominent scarps along the flanks of Baked, Falling, and Broken Mountains surrounding the Novarupta depression indicate considerable subsidence occurred following the 1912 eruption. Nearby stratovolcanoes (including Trident and Katmai) form a volcanic front trending N65E; Novarupta lies about 4 km behind the front.