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Archive for the ‘Mount Merapi volcano’ Category

More Indonesian Volcanoes Could Erupt Simultaneously [Probability ≥ 0.55]

Posted by feww on November 11, 2010

Singapore Sling May Follow

Mt Merapi releases them all: Ash plumes, lahars, pyroclastic flows, sulfur dioxide …

Image shows concentrations of sulfur dioxide release by Mt Merapi volcano between November 4 and 8, 2010. The image was processed from data acquired by the Ozone Monitoring Instrument (OMI) on NASA’s Aura spacecraft. “Sulfur dioxide is measured here in Dobson Units: The greatest concentrations appear in dark red-brown; the lowest in light peach. Typically used to measure ozone, the Dobson Unit is the number of molecules of gas that would be required to create a layer 0.01 millimeters thick at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere (the air pressure at the surface of the Earth).” Source: NASA E-O.

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Mt Merapi Erupts Again, 70,000 Evacuated

Posted by feww on November 1, 2010

Java’s Mount Merapi volcano erupted again forcing up to 70,000 to evacuate

Mount Merapi volcano spews smoke as seen from Sidorejo village in Klaten, near Yogyakarta November 1, 2010. REUTERS/Beawiharta. Image may be subject to copyright.

Merapi’s latest eruption on Monday, the third in a week, ejecting  a dense plume of ash cloud up into the air to a height of about 1.5 km, local volcanologists reported.

Two other volcanoes, Mount Anak Krakatau (Sunda strait) and Mount Sinabung (North Sumatra), are also showing signs of increased activity, they said.

Major Volcanoes of Indonesia

Mt Sinabung, Krakatoa and Merapi Volcanoes Location Map
. Source of the original map: USGS. Map enhanced by Fire-Earth
. Click image to enlarge.

Videos and more images are available at: HVO

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Mount Merapi Erupts Repeatedly

Posted by feww on October 29, 2010

Mount Merapi erupted at least six times Friday, spewing ash and lava

Indonesia’s Mount Merapi volcano erupted repeatedly on Friday, spewing ash and lava, reports say.

The plume reportedly rose to a height of  about 1,500 meters (~ 5,000 feet).

Mount Merapi volcano spewed lava for the first time in its latest round of activity which began Tuesday.  Photo: AFP/ Getty Images. Image may be subject to copyright.

Mount Merapi, located north of the Yogyakarta, on the densely populated island of Java, is one of Indonesia’s most active volcanoes.

Mount Merapi volcano eruption in 2006. Photo: AP. Image may be subject to copyright.

Mount Merapi rumbled for many hours before spewing smoke on Tuesday. Photo shows volcano from Balerante, Central Java, Indonesia. Merapi last erupted in 2006. About 1,400 people have been killed as a result of 3 previous eruptions since 1930. Image Credit: AP. Caption: Fire-Earth.

Merapi, one of Indonesia’s most active volcanoes, lies in one of the world’s most densely populated areas and dominates the landscape immediately north of the major city of Yogyakarta. Merapi is the youngest and southernmost of a volcanic chain extending NNW to Ungaran volcano. Growth of Old Merapi volcano beginning during the Pleistocene ended with major edifice collapse perhaps about 2000 years ago, leaving a large arcuate scarp cutting the eroded older Batulawang volcano. Subsequently growth of the steep-sided Young Merapi edifice, its upper part unvegetated due to frequent eruptive activity, began SW of the earlier collapse scarp. Pyroclastic flows and lahars accompanying growth and collapse of the steep-sided active summit lava dome have devastated cultivated lands on the volcano’s western-to-southern flanks and caused many fatalities during historical time. The volcano is the object of extensive monitoring efforts by the Merapi Volcano Observatory. Photo by Yustinus Sulistiyo, 1994 (Volcanological Survey of Indonesia); caption: GVP

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