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Archived Volcano News - John Seach
August 2012
Reports are posted in Eastern Australian Time (UT +10 hr).
Archived Volcano News
Wednesday 29th August 2012
Soputan Volcano, Indonesia
An increase in activity occurred at Soputan volcano, Indonesia, during August 2012. Between 16-25 August 938 avalanches were detected seismically. On 26th August an explosive eruption ejected incandescent material into the air. The alert status at the volcano was raised from level 2 (waspada) to level 3 (siaga) on 26th August.
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Wednesday 29th August 2012
Tangkubanparahu Volcano, Indonesia
Seismic activity increased at Tangkubanparahu volcano, Indonesia, on 13th August 2012. Between 1 July and 22 August 264 volcanic earthquakes were recorded. On the 23rd August 2012 the alert level at the volcano was increased from Normal (Level I) to Waspada (Level II). Based on past eruptions since the 19th century, Tangkubanparahu has never shown a large magmatic eruption, but small ash emissions without lava flows or glowing rockfalls have occurred. Phreatic eruptions are dominant and generally followed by the increasing of fumaroles and solfatara temperature at several active craters called Kawah Ratu, Kawah Baru and Kawah Domas.
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Wednesday 22nd August 2012
Tungurahua Volcano, Ecuador
An increase in activity has occurred at Tungurahua volcano, Ecuador. Between 1500-1600 hr (local time, 20th August 2012) there were 16 large explosions. The explosions were heard in nearby villages. During the evening of 20th August there were constant avalanches of incandescent material rolling 1.5 km down the flank. At 1411 hr (local time) on the 21st August an explosive eruption produced an ash column 4 km high and a pyroclastic flow which travelled 2.5 km down Achupashal creek. Thermal images identified continuous emission of incandescent material on the upper flanks of the volcano. The eruptions have caused the evacuation of 110 families.
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Volcanoes of Ecuador...
Wednesday 15th August 2012
Havre Seamount, Kermadec Islands
The pumice raft from an eruption of Havre seamount covered an area of 450 km by 258 km on 13th August 2012. The eruption produced enough heat to be detected on the ocean surface by the MODIS satellite. A cluster of earthquakes in the Kermadec Islands on 17-18 July was correlated with the the eruption location.
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Sunday 12th August 2012
Havre Seamount, Kermadec Islands
A large amount of pumice has been observed floating in the South Pacific ocean 85 nautical miles west-south-west of Raoul Island. The pumice raft was first observed by an aircraft pilot on 1st August 2012. The pumice covered 25,000 square km. Crew on board the ship HMNZS Canterbury observed the pumice on 9th August. The source of the pumice was determined to be Havre Seamount.
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Thursday 9th August 2012
White Island Volcano, New Zealand
A tuff cone has started to build over the eruption site at White Island volcano. The eruption on 6th August 2012 was the first in 11 years. Small amounts of ash are being emitted from the active vent. Visitors to the island are at risk from further eruptions. The alert status remains at level 2 (on a scale of 0-5).
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Wednesday 8th August 2012
White Island Volcano, New Zealand
A small eruption occurred at White Island volcano at 04:55 am on 6th August 2012. The eruption occurred at the crater lake and was preceded by strong volcanic tremor on 4-5 August. The crater lake had gradually emptied during 2011 and 2012, and the water level rose rapidly 3-5 m on 27-28 July 2012. The alert status at the volcano has been raised to level 2.
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Tuesday 7th August 2012
Tongariro Volcano, New Zealand
Tongariro volcano erupted at 11:30 pm on 6th August 2012. The eruption occurred at Te Mari crater and lasted a few minutes and was followed by earthquakes over the next half hour. Activity subsided the following morning. Ketetahi Hut was destroyed by volcanic boulders 1 metre in diameter. The hut is located 1.5 km from the eruption. There were no hikers in the hut at the time of the eruption. All four national park huts around Mt Tongariro have been closed for safety reasons. No one was injured in the eruption. The alert status at Tongariro volcano has been raised to level 2.
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Volcanoes of New Zealand...