quarta-feira, março 17, 2021

Uma forte erupção do Monte Agung matou milhares de pessoas há 58 anos

  
O Monte Agung (em indonésio: Gunung Adung) é um estratovulcão localizado no leste da ilha de Bali, na Indonésia. É o ponto mais alto da ilha, e possui 3142 metros de altitude. A sua última grande erupção foi no ano de 1963, quando os fluxos piroclásticos (nuvens ardentes) mataram milhares de pessoas. Durante essa erupção, o Agung expeliu cinza a uma altura de vinte quilómetros, permanecendo activo por um ano. A lava expelida deslocou-se 7,5 quilómetros, e as cinzas chegaram a Jacarta, a cerca de mil quilómetros de distância.
  
  

The eruption of 1963 was one of the largest and most devastating eruptions in Indonesia's history.
On February 18, 1963, local residents heard loud explosions and saw clouds rising from the crater of Mount Agung. On February 24, lava began flowing down the northern slope of the mountain, eventually traveling 7 km in the next 20 days. On March 17, the volcano erupted (VEI 5), sending debris 8 to 10 km into the air and generating massive pyroclastic flows. These flows devastated numerous villages, killing an estimated 1,100–1,500 people. Cold lahars caused by heavy rainfall after the eruption killed an additional 200. A second eruption on May 16 led to pyroclastic flows that killed another 200 inhabitants. Minor eruptions and flows followed and lasted almost a year.
The lava flows missed, sometimes by mere yards, the Mother Temple of Besakih. The saving of the temple is regarded by Balinese as miraculous and a signal from the gods that they wished to demonstrate their power but not destroy the monument that the Balinese had erected.
Andesite was the dominant lava type with some samples mafic enough to be classified as basaltic andesite.
  

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