Volcano Eruption

volcano eruption
Eruption of Mount a mountain in the area of AT. Yogyakarta and Central Java have erupts. On 26 October last has occurred which caused the eruption of Mount Merapi is big enough and occur approximately four times Merapi erupts, eruption again occurred at 17:03 pm and was followed out hot clouds continuously. Based on these events, Centre for Volcanology and Geological Hazard Mitigation (PVMBG), Geological Agency, and Ministry of Energy and Mineral Resources declared Mount Merapi has erupted. In fact, Head PVMBG Surono ensure that the eruption at 17:02 pm greater than the three eruptions that occurred previously. "This is an explosive eruption times and larger than the three previous eruptions," said Surono in Yogyakarta kemarin.Karena amount of energy released, at 18.00 pm there was an eruption three times the sound of the whole observatories and PGM Pos Pos PGM in Selo, Boyolali District , followed by smoke billowing as high as 1.5 kilometers heading south.

Head of Geological Agency, R. Sukhyar, say the that, the energy stored in the eruption of Mount Merapi after non-stop on November 3 to 8 begin to decrease and is now almost equal to the quiet period at the end of October 2010. "Currently, the energy possessed almost the same Merapi quiet period on 26 October to 3 November," said Sukhyar in Media Center National Disaster Management Agency (BNPB) in Yogyakarta, on Sunday.

According to him, the decline in the energy stored in the Mount Merapi has become one of the factors underlying the reduction in radius of the eruption of Mount Merapi disaster-prone in four kabupaten.Selain decreased energy, from satellite observations also showed that the content of sulfur dioxide (SO2) in the vicinity of Merapi began to decline which means that the magmatic activity of Merapi was decreased. He said that, while large-scale eruption occurred on November 5, the content of sulfur dioxide reached 120 kilotons, but then declined to 40 kilotons on 8 November and is now undetectable.

Geological Agency initially increase the radius of risk of the eruption of Mount Merapi on November 5 to 20 km for all districts in the vicinity of the volcano. But since Sunday at 06.00 pm, the radius of hazardous eruption of Mount Merapi changed to three districts, namely Klaten and Boyolali to 10 km to 15 km and Magelang, Sleman was still maintained at a distance of 20km.

In Klaten district and Boyolali, he added, there are obstacles in the form of the river that makes the hot clouds sliding distance to the two districts are shorter than the Sleman and Magelang.

Geology DBadan together BNPB also install detectors lava flow in all rivers that disgorge at Mount Merapi as lava floods still remains a threat. Rivers that disgorge at Mount Merapi is, Woro Kali, Kali Gendol, Kali Kuning, Boyong Kali, Kali Bedog, Krasak, Bebeng Kali, Kali Sat, Lamat Kali, Kali Senowo, Tringsing Kali, and Kali Apu. Based on the volcanic activity monitoring report by the Center for Volcanology and Geological Hazard Mitigation (PVMBG), all the rivers that disgorge at Merapi volcano filled with lava deposits.