Eruptions continue at Merapi volcano, Indonesia. People have been asked to remain in evacuation centres, and flights may be disrupted from Adisucipto International Airport Yogyakarta. Volcanic activity is still high with 38 lava avalanches occurring between midnight and 3 pm yesterday. An eruption column reached 3 km above the summit. Pyroclastic flows extended down the south, southwest , and western slopes of the volcano, with a maximum runout distance of 7 km. Ashfall was reported 20 km from the volcano. At 00:50 hr yesterday there was an explosion at the summit of Merapi which affected a radius of 2 km from the volcano. The explosion earthquake was felt by people at Srumbung village, 12 km from the volcano. At 0:35 hr yesterday there was a large pyroclastic flow recorded which lasted for 22 minutes, and flowed in the direction of K. Gendol, K. Kuning, K. Krasak, and K. Boyong. At 0:16 hours yesterday a pyroclastic flow lasted 7 minutes and flowed towards K. Lamat, K. Senowo, and K. Krasak. The Center of Volcanology and Geological Hazard Mitigation in Indonesia reports that a major eruption is possible.
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Sunday, October 31, 2010
Saturday, October 30, 2010
Merapi Volcano, Indonesia - John Seach
An eruption occurred at Merapi volcano, Indonesia at 1:00 am this morning. Two people were taken to hospital with injuries. Merapi volcano has killed 34 people since it began erupting on Tuesday. There is a 10 km exclusion zone around the volcano, and tens of thousands people have been evacuated.
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More on Merapi volcano...
Piton de la Fournaise Volcano, Reunion - John Seach
Renewed activity occurred at Piton de la Fournaise volcano, Reunion on Wednesday 27th October. Seismic activity increased sharply at 14:30 hours, which was four times the intensity of the preceding days. Volcano-tectonic earthquakes were recorded, which indicated new magma injection into the system. This was followed by new eruptions from a cone on the southeast flank of the volcano, and a lava flows at its base. A significant increase in tremor and new eruptive activity may suggest the beginning of a second eruptive phase at the volcano beginning on 27th October.
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Friday, October 29, 2010
Sheveluch Volcano, Kamchatka - John Seach
Explosive and effusive eruptions continue at Sheveluch volcano in Kamchatka. On 28th October ash emissions reached a height of 23,000 ft. Seismic activity began to increase on 26th October, and a strong paroxysmal explosive eruption at the volcano occurred from 14:00 until 20:40 UTC on 27th October. The ash column reached a height of 40,000 ft. Satellite images showed the ash plumes extending 2,500 km east from the volcano on 27-28 October. Ashfall occurred at Ust-Kamchatsk from 18:00 UTC on 27th October until 03:00 UTC on 28th October. The airport and road from Ust-Kamchatsk to Kluchi were closed. The volcano is at level RED alert.
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Klyuchevskoy Volcano, Kamchatka - John SEach
Explosive and effusive eruptions continue at Klyuchevskoy volcano in Kamchatka. Strombolian activity occurred all week. Ash plumes reached heights of 26,200-29,500 ft on 22-25, and 27 October. Two lava flows effused from the summit crater and extended down the western and south-western flanks of the volcano. Ash plumes extended over 2300 km east of the volcano all week. The volcano is at level RED alert.
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Thursday, October 28, 2010
Merapi Volcano, Indonesia - John Seach
A new eruption occurred at Merapi volcano, Indonesia at 4:30 pm on 28th October. Darwin Volcanic Ash Advisory Centre reported that a high level eruption was observed from the ground. The eruptions this week have been explosive which is different from that experienced in recent times. The eruption of Merapi volcano on Tuesday produced a vertical blast which reached a height of 1.5 km. This is the first time that this type of eruption has been observed at the volcano. Eruptions of Merapi volcano during the 7–19th centuries A.D. were more violent than the past hundred years, and produced explosion pyroclastic flows. In 2001 scientists predicted that the quiet of the 20th century would be broken by a larger explosive eruption in the coming decades. It is possible that the eruption of Merapi on Tuesday was precipitated by the magnitude 7.7 Sumatran earthquake a few hours earlier. The last eruption of Merapi volcano in 2006 occurred soon after a nearby tectonic earthquake.
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More on Merapi volcano...
Wednesday, October 27, 2010
Merapi Volcano, Indonesia - John Seach
Merapi volcano, Indonesia erupted yesterday afternoon, killing 13 people. The death toll is likely to rise. The volcano was placed on the highest level alert on Monday after an increase in pre eruption signals were detected. Merapi is one of the world's most active and hazardous volcanoes. It produces more pyroclastic flows than any other volcano, and a large population lives on its slopes.
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More on Merapi volcano...
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