Mayon Volcano is the main landmark of Albay Province,
Philippines, rising 2,462 metres (8,077 ft) from the shores of the Gulf of
Albay about 10 kilometres (6.2 mi) away.The volcano is geographically shared by
the eight cities and municipalities of Legazpi, Daraga, Camalig, Guinobatan,
Ligao, Tabaco, Malilipot, and Santo Domingo (clockwise from Legazpi), which
divide the cone like slices of a pie when viewed from above.
Mayon is a classic stratovolcano(composite) type of volcano
capped by a small central summit crater. The cone is considered the world's
most perfectly formed volcano for its symmetry,which was formed through layers
of pyroclastic and lava flows from past eruptions and erosion. The upper slopes
of the basaltic-andesitic volcano are steep averaging 35–40 degrees.
Like other volcanoes located around the Pacific Ocean, Mayon
is part of the Pacific Ring of Fire. It is located on the eastern side of
Luzon, near the Philippine Trench which is the convergent boundary where the
Philippine Sea Plate is driven under the Philippine Mobile Belt. When a
continental plate or belt of continental fragments meets an oceanic plate, the
lighter continental material overrides the oceanic plate, forcing it down into
the Earth's mantle. Magma may be forced through weaknesses in the continental
crust caused by the collision of the tectonic plates. One such exit point is
Mayon.
Recorded eruptions
Mayon is the most active volcano in the Philippines having
erupted over 49 times in the past 400 years. The first record of a major
eruption was witnessed in February 1616 by Dutch explorer Joris van Spilbergen
who recorded it on his log in his circumnavigation trip around the world.The
first eruption of which there is an extended account was the six-day event of
July 20, 1766.
Sent: 25/2/2015
Arrived: 12/3/2015
Thanks LumosNox!
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