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Ibu volcano (Halmahera, Indonesia), Nov 2014: eruptions

During the volcano tour to Dukono and Ibu volcanoes in November 2014, we climbed and camped at Ibu during 12-13 Nov 2014. The volcano's activity, typical for the recent years, at moderate levels, consisted in intermittent strombolian explosions and ash emissions, accompanying very weak lava extrusion.
Wide-angle view over the lava dome while an ash-rich eruption takes place from the cinder cone in the center. (Photo: Tom Pfeiffer)
Wide-angle view over the lava dome while an ash-rich eruption takes place from the cinder cone in th... [info]
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A large cinder cone has grown in the center of the lava dome of Ibu. At its eastern base, steam rises from the effusive vent. (Photo: Tom Pfeiffer)
A large cinder cone has grown in the center of the lava dome of Ibu. At its eastern base, steam rise... [info]
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Strombolian eruption from the cinder cone. (Photo: Tom Pfeiffer)
Strombolian eruption from the cinder cone. (Photo: Tom Pfeiffer) [info]
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Ash plume rising from a moderately strong explosion. (Photo: Tom Pfeiffer)
Ash plume rising from a moderately strong explosion. (Photo: Tom Pfeiffer) [info]
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Small jets of brown and black ash, along with many small bombs are ejected during an eruption from multiple vents at the eastern base of the cone. The dark (relatively cool) finger-shaped ash jets to the right along with the white steam plumes suggest phreatomagmatic activity (i.e. interaction of water with magma). (Photo: Tom Pfeiffer)
Small jets of brown and black ash, along with many small bombs are ejected during an eruption from m... [info]
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Beautiful eruption from the lower vent of Ibu volcano. (Photo: Tom Pfeiffer)
Beautiful eruption from the lower vent of Ibu volcano. (Photo: Tom Pfeiffer) [info]
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As the eruption continues for about a minute, a moderately large ash plume rises several hundred meters. (Photo: Tom Pfeiffer)
As the eruption continues for about a minute, a moderately large ash plume rises several hundred met... [info]
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Eruption from the central cone while mist starts to cover the crater area. (Photo: Tom Pfeiffer)
Eruption from the central cone while mist starts to cover the crater area. (Photo: Tom Pfeiffer) [info]
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Weak strombolian activity from the central cone at dusk. (Photo: Tom Pfeiffer)
Weak strombolian activity from the central cone at dusk. (Photo: Tom Pfeiffer) [info]
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A stronger strombolian-type explosion occurs from the eastern vent at the end of dusk. (Photo: Tom Pfeiffer)
A stronger strombolian-type explosion occurs from the eastern vent at the end of dusk. (Photo: Tom P... [info]
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Strong strombolian eruption from multiple vents, probably aligned along a fissure occurs during the night. (Photo: Tom Pfeiffer)
Strong strombolian eruption from multiple vents, probably aligned along a fissure occurs during the ... [info]
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An ash-rich eruption produces a small pyroclastic flow as dense ash starts to flow down the western flank of the cinder cone. (Photo: Tom Pfeiffer)
An ash-rich eruption produces a small pyroclastic flow as dense ash starts to flow down the western ... [info]
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Typical ash eruption. (Photo: Tom Pfeiffer)
Typical ash eruption. (Photo: Tom Pfeiffer) [info]
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Eruption from multiple vents with black, finger-shaped jets of ash and small bombs. (Photo: Tom Pfeiffer)
Eruption from multiple vents with black, finger-shaped jets of ash and small bombs. (Photo: Tom Pfei... [info]
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Ash plumes rising from the same eruption. (Photo: Tom Pfeiffer)
Ash plumes rising from the same eruption. (Photo: Tom Pfeiffer) [info]
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Again, some dense ash is erupted that flows down as miniature pyroclastic flows. (Photo: Tom Pfeiffer)
Again, some dense ash is erupted that flows down as miniature pyroclastic flows. (Photo: Tom Pfeiffe... [info]
(270 Просмотров)

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