Sinabung volcano photos July 2015: lava dome and pyroclastic flows

A meteor passes above Sinabung volcano with its two active lava lobes. (Photo: Tom Pfeiffer) [info]
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The eastern lobe (r) frequently generates glowing rockfalls. (Photo: Tom Pfeiffer) [info]
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Rockfall at dawn. (Photo: Tom Pfeiffer) [info]
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The large lava flow in the front was emplaced in early 2014. (Photo: Tom Pfeiffer) [info]
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A larger rockfall from the eastern lobe generates a lot of dust. (Photo: Tom Pfeiffer) [info]
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Glow from the two active lava lobes early on 27 July. (Photo: Tom Pfeiffer) [info]
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A small explosion occurs from the lava dome in the morning of 27 July. (Photo: Tom Pfeiffer) [info]
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Zoom onto the active lava dome. (Photo: Tom Pfeiffer) [info]
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Around noon on 27 July, rockfalls from the eastern lobe increase. (Photo: Tom Pfeiffer) [info]
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Depending on how much of the steep front of the eastern lobe collapses at once, the next pyroclastic... [info]
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After 3 days with no pyroclastic flows, a first one occurs at noon on 27 July. (Photo: Tom Pfeiffer) [info]
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Within less than a minute, the flow has reached the base of the volcano's main cone. (Photo: Tom Pfe... [info]
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The pyroclastic flow continues at high velocity, widens in the flatter area and forms several advanc... [info]
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The flow has reached the area of the (already mostly destroyed) village of Bekerah. (Photo: Tom Pfei... [info]
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As the flow starts to slow down, the fine ash lifts to form a so-called co-ignimbrite ash plume. (Ph... [info]
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Ash plume from the pyroclastic flow rising and penetrating a cumulus cloud. (Photo: Tom Pfeiffer) [info]
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Small fingers of hot fluidized material continue to advance at the flow front. (Photo: Tom Pfeiffer) [info]
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The co-ignimbrite ash plume from a pyroclastic flow at Sinabung volcano rises more than 2 kilometers... [info]
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The dissipating ash plume spreads over the whole eastern and southern sectors, where ash fall sets i... [info]
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Several other flows occur the next day, but were smaller in size. (Photo: Tom Pfeiffer) [info]
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Hot pyroclastic deposits create strong convection currents that generate small "tornados", or rather... [info]
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View of the volcano with a small pyroclastic flow reaching 2 km length. (Photo: Tom Pfeiffer) [info]
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Ash plume rising from the pyroclastic flow. (Photo: Tom Pfeiffer) [info]
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Another flow on 28 July morning races down the steep flank, hits and surpasses the walls of a small ... [info]
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The advancing front of "boiling" ash. (Photo: Tom Pfeiffer) [info]
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As the flow front stagnates, the fine ash starts to separate and rise as ash plume. (Photo: Tom Pfei... [info]
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Zoom onto the margins of the pyroclastic flow front. (Photo: Tom Pfeiffer) [info]
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Ash plume rising from the pyroclastic flow. (Photo: Tom Pfeiffer) [info]
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Wide-angle view of the pyroclastic flow on the volcano's eastern side. (Photo: Tom Pfeiffer) [info]
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Zoom onto the lava dome with the eastern lava lobe, which has significantly lost mass, especially fr... [info]
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Hot dust devils rise like tornados from the fresh and still hot pyroclastic deposits. (Photo: Tom Pf... [info]
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Comparison (same view) of the lava dome from 25 and 28 July. The eastern lobe (to the right) has los... [info]
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