Bali: Uitbarsting van de vulkaan Agung

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AP twitterde op dinsdag 26-09-2017 om 10:42:31 BREAKING: Indonesia disaster agency says more than 75,000 people have left area around Mount Agung on Bali amid fears of eruption. reageer retweet

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Eruption could accur in 'matter of hours'
Mount Agung in Bali is experiencing unprecedented levels of seismic activity and could erupt in a “matter of hours” if tremors continue, Indonesia’s volcanology centre has said.

More than 75,000 people have been evacuated in the last few days as Agung, the highest point of the island, has experienced hundreds of internal volcanic earthquakes.

“Instrumentally we have never recorded such high energy or seismicity from Mount Agung,” Devy Kamil Syahbana, a seismologist from Indonesia’s centre for volcanology and geological hazard mitigation, told the Guardian.

Data showed that Mount Agung experienced 844 volcanic earthquakes on Monday, and 300 to 400 earthquakes by midday on Tuesday, he said. “We need to pay attention because these kinds of earthquakes indicate the movement of magma and increase the probability of an eruption.”

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Evacuated people have sought shelter in hundreds of village halls and sports centres and in the homes of relatives in more than nine districts. President Joko Widodo is scheduled to visit evacuees at several camps on Tuesday.

Authorities have urged people to stay out the danger zone, a designated five- to seven-mile radius of the volcano.

The increasing frequency of deep and shallow volcanic earthquakes, as well as local tectonic tremors, is an indication that magma continues to move toward the surface. The alert status of Agung was raised to the highest level on Friday evening following a significant spike in seismic activity.

Kasbani, the head of the volcanology centre, told local media that if tremors continued, an eruption – the first in more than half a century – could be a “matter of hours” away.

The volcanology agency is also drawing data from GPS and satellite imagery, including a thermal camera. Readings from these measurements are in line with the increase in volcanic tremors.

Syahbana said it was impossible to say that Agung would definitely erupt, only that the data showed there was an increasing probability that it would.

“There is no volcanologist in the world who could predict precisely when a volcano will erupt,” he said. “Volcanoes are a stochastic system, many complexities are unknown by the human brain and technology.”

Mount Agung last erupted in 1963, when more than 1,000 people were killed. That event was preceded by an increased frequency in earthquakes.

One of the difficulties in predicting the likelihood and timing of an eruption on Agung is that monitoring of the volcano began only after the 1963 eruption.

Other volcanoes in Indonesia that have erupted more recently offer a greater wealth of data for seismologists to compare and assess.

“But for Agung we have no instrumental documentation,” said Syahbana. “The only records that we have is of the phenomena that were observed and reported by people around the volcano prior to the 1963 eruption.”

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Toeristen schuld aan dreigende vulkaanuitbarsting
De dreigende vulkaanuitbarsting op het Indonesische eiland Bali is te wijten aan buitenlandse toeristen die seks hadden op de berg Agung. Dat zegt een priester in een nabijgelegen dorp.

De Agung is een populaire plek voor wandelaars en die hebben de berg boos gemaakt, zegt de priester uit het dorp Muntig. Volgens hem hebben witte mensen op de berg seks gehad en gemenstrueerd.

Meer evacués

De Agung is nog altijd erg onrustig en steeds meer omwonenden verlaten het gebied uit angst voor een uitbarsting. Bijna 135.000 mensen hebben nu hun huis verlaten. Ze worden opgevangen in tenten, overheidsgebouwen en gymzalen in de buurt.

In het bedreigde gebied rond de berg loopt nog veel vee rond. De autoriteiten proberen de 30.000 dieren in veiligheid te brengen, omdat het vee een belangrijke inkomstenbron is voor de bevolking.