@luismeteo3, @criz0r, @Felipe Freitas, na vossa opinião há possibilidade de uma erupção com VEI igual ou superior a 5??? É que, na teoria, a frequência de uma VEI5 está ultrapassada e passaram pouco mais de 25 anos após a última VEI6 Pinatubo (1991).
Uma VEI7 é totalmente de excluir??
1963 Eruption
A destructive eruption occurred in 1963. Victims were killed by pyroclastic flow (820 persons), ejected glowing rock fragments and volcanic ashfalls (163 persons), and 165 persons were killed by lahars. Injured people were affected by pyroclastic flows (59 persons), ejected glowing rock fragments and volcanic ashfalls (210 persons), and lahars (36 persons).
The first indication of renewed activity were frequent tremors felt by people living in Jehkori, a village on the southern slope of the volcano at an elevation of 928 m, about 6 km from the summit.
Five days after resumption of activity, thick and viscous lava flowed over the lowest northern crater rim and down the steep northern slope. It reached a length of 7 km from the summit towards the middle of March 1963.
On 24th February, nuees ardentes killed 12 people in the village of Boleng who were evacuees returning for their belongings.
The eruption reached its highest peak of intensity at 05:32 on 17th March 1963 with eruption clouds rising to a height of 10 km from the crater. Nuees ardentes flowed down the southern and southeastern slopes continuously and devastated numerous villages and temples in the region around Selat. The nuees ardentes
reached distances of 14 km from the summit and burned everything on their way.
Another series of large eruptions occurred on 16th May 1963 when ash was emitted to a height of 10 km and nuee ardentes killed 120 people.
The eruptions of Agung volcano in 1963 created a crimson sunset glow over America and Europe.
possibilidade de uma Erupção VEI5 é sempre algo em cima da mesa até pelo histórico mais recente deste Vulcão
Outra questão: creio ter ouvido ou lido que, no caso de uma erupção explosiva, chega a existir uma "dilatação" do vulcão, parecendo que o mesmo aumenta de tamanho.
2.40pm: Mount Agung eruption ‘will be disruptive’
Dr Teresa Ubide, a volcanologist from Queensland University says that Mount Agung “is a volcano that can erupt explosively” and warned that the next eruption could cause damages.
She told Australia’s ABC News: “According to past activity on this particular volcano the eruption can get to be quite explosive. For example in the last eruption in 1963 the explosivity was high, the ash column reached 20km, and the death toll was also high.
“So it is a volcano that can erupt explosively, and this time the pressure in the magma could build up and we may have an explosive eruption which may cause damages to air traffic and the surrounding area – this is why it’s been evacuated.
The number of people who have fled the area around Mount Agung has increased to 96,000, Indonesia's National Disaster Mitigation Agency has said.
It added that a monitoring centre has recorded more than 800 earthquakes today and that smoke has been observed rising 50m above the crater.