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What type of shape is Mt Pinatubo?
stratovolcano
The modern Pinatubo is a dome complex and stratovolcano made of dacite and andesite. This complex is surrounded by pyroclastic flow and lahar deposits from large explosive eruptions. These explosive eruptions have been clustered into 6-12 eruptive periods.
How would you describe Mount Pinatubo?
Mount Pinatubo is located about 55 miles (90 km) northwest of Manila and rose to a height of about 4,800 feet (1,460 m) prior to its eruption. These explosions reached a peak on June 14–16, producing a column of ash and smoke more than 28 miles (40 km) high, with rock debris falling the same distance from the volcano.
How did Mount Pinatubo form?
It is a subduction-related volcano, formed by the Eurasian Plate sliding under the Philippine Mobile Belt along the Manila Trench to the west. …
Why Mt Pinatubo is composite volcano?
Mt. Pinatubo is a composite volcano because of its broad base and because the slopes of the volcano get steeper the closer you get to the summit. Composite volcanoes are made with a combination of pyroclastic material and lava.
Why is Mt Pinatubo famous?
Pinatubo is most notorious for its VEI-6 eruption on June 15, 1991, the second-largest terrestrial eruption of the 20th century after the 1912 eruption of Novarupta in Alaska. It injected more particulate into the stratosphere than any eruption since Krakatoa in 1883.
What kind of magma is in Mt Pinatubo?
The lava that flows from it tends to be viscous; it cools and hardens before spreading far. The magma forming this lava is often felsic, having high-to-intermediate levels of silica , with less amounts of less-viscous mafic magma. Several mountains near Pinatubo are old satellite vents of olden days Pinatubo,…
How tall is the peak of Mt Pinatubo?
Mt. Pinatubo is located at 15.13N, 120.35E. Its elevation is 5248 ft (1600 m) The birth of now-a-days Pinatubo occurred in the most explosive eruption in its history, which deposited pyroclastic flow material up to 100 meters thick on all sides of the mountain.
Where did the name of the volcano Pinatubo come from?
The word pinatubo could mean “fertile place where one can make crops grow”, or could mean “made to grow”, in Sambal and Tagalog, which may suggest a knowledge of its previous eruption in about 1500 AD. There is a local oral tradition suggestive of a folk memory of earlier large eruptions.
Where are Mount Negron and Mount Pinatubo located?
Pinatubo belongs to the Cabusilan sub-range of the Zambales Mountains, which consists of Mount Cuadrado, Mount Negron, Mount Mataba and Mount Pinatubo. They are subduction volcanoes, formed by the Eurasian Plate sliding under the Philippine Mobile Belt along the Manila Trench to the west.