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Bromo volcan (Java Est, Indonésie), fév 2011: activité strombolienne

La plupart du matériel éjecté lors de son éruption en cours est de cendres et blocs dans les parois du cratère et conduites. Matériau à incandescence (c.-à-d. fraîche magma) a été observée pour la première fois à Bromo en décembre 2010. Activité strombolienne doux était visible la nuit lors de notre tournée de 15-19 fév, généralement accomanied par les bruits d'explosion sifflement et doux. Au moins deux évents différents ont été actifs à l'intérieur du cratère du Bromo. La plupart de l'activité strombolienne a eu lieu de la cheminée dans le w la moitié (à droite sur les photos) du cratère, tout en un évent dans l'est de la moitié (à gauche) était le principal site d'émissions de cendres et des explosions de puissantes occasionnelles, accompagnées de fortes détonations et les ondes de choc arrière-fond windows dans jusqu'à plusieurs kilomètres distance.

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A powerful vulcanian-type explosion shakes the ground. Many incandescent bombs are thrown many hundreds of meters into the night sky, and many of them land outside the crater. Note, that most blocks are actually NOT glowing, making a further approach to Bromo quite dangerous. (Photo: Tom Pfeiffer)
A powerful vulcanian-type explosion shakes the ground. Many incandescent bombs are thrown many hundr...
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Bromo and the Hindu temple at its feet in a moonlit night. Jorge has his camera set up for the next eruption. (Photo: Tom Pfeiffer)
Bromo and the Hindu temple at its feet in a moonlit night. Jorge has his camera set up for the next ...
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Another powerful explosion throws a barrage of bombs onto the outer flanks of the cone. Only few of the ejected blocks are actually glowing. (Photo: Tom Pfeiffer)
Another powerful explosion throws a barrage of bombs onto the outer flanks of the cone. Only few of ...
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Dense ash clouds are produced by vulcanian-type explosions. In this long exposure night time shot, the ash cloud is blurred against the moon-lit landscape. Bromo's Hindu temple in the foreground. (Photo: Tom Pfeiffer)
Dense ash clouds are produced by vulcanian-type explosions. In this long exposure night time shot, t...
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The moon has set and the night becomes dark again... Bromo erupting against a star-lit sky. (Photo: Tom Pfeiffer)
The moon has set and the night becomes dark again... Bromo erupting against a star-lit sky. (Photo: ...
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Mild strombolian activity at dawn (Photo: Tom Pfeiffer)
Mild strombolian activity at dawn (Photo: Tom Pfeiffer)
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View onto Bromo crater with a strong strombolian eruption in bright moonlight. The ash, blurred in the long exposure, hides many blocks. (Photo: Tom Pfeiffer)
View onto Bromo crater with a strong strombolian eruption in bright moonlight. The ash, blurred in t...
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The glowing vent(s) illuminate the diffuse steam and ash plume above Bromo's crater bright red at night. (Photo: Tom Pfeiffer)
The glowing vent(s) illuminate the diffuse steam and ash plume above Bromo's crater bright red at ni...
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Mild strombolian activity at Bromo's western vent. (Photo: Tom Pfeiffer)
Mild strombolian activity at Bromo's western vent. (Photo: Tom Pfeiffer)
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(Photo: Jorge Santos)
(Photo: Jorge Santos)
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Panoramic view over Bromo volcano in strombolian activity at night. The ash plume is drifting eastwards. (Photo: Tom Pfeiffer)
Panoramic view over Bromo volcano in strombolian activity at night. The ash plume is drifting eastwa...
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The Hindu temple at the foot of Bromo volcano, East Java, Indonesia (Photo: Jorge Santos)
The Hindu temple at the foot of Bromo volcano, East Java, Indonesia (Photo: Jorge Santos)
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Eruption of Bromo volcano behind the Hindu temple (Photo: Jorge Santos)
Eruption of Bromo volcano behind the Hindu temple (Photo: Jorge Santos)
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The glowing crater of Bromo seen from the hotel on the caldera rim, ca. 2 km distance, at night (18 Feb. 2011). (Photo: Tom Pfeiffer)
The glowing crater of Bromo seen from the hotel on the caldera rim, ca. 2 km distance, at night (18 ...
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Powerful strombolian eruption at night, throwing many bombs onto the outer flank, some hitting the stairway leading up to the crater. (Photo: Tom Pfeiffer)
Powerful strombolian eruption at night, throwing many bombs onto the outer flank, some hitting the s...
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Glow and an eruption from Bromo volcano at dawn (Photo: Jorge Santos)
Glow and an eruption from Bromo volcano at dawn (Photo: Jorge Santos)
(783 Hits)

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