Batu Tara Vulkanexpedition Nov 2012 Fotos: strombolianische Ausbrüche
The photos were taken during 25-28 Nov 2012 when we visited the remote Komba island consisting of Batu Tara volcano during our recent volcano expedition to Indonesia. The volcano has been in continuous strombolian eruption, at fluctuating levels, since 2006. Very favorable weather and sea conditions allowed us to land several times on the narrow beach a few 100 m south of the eastern collapse scar of the volcano, the only place on shore from where the vent and its eruptions are visible. During our stay, activity varied from day to day, and consisted in frequent ash venting, mild to powerful strombolian eruptions accompanied by loud detonations and ejecting bombs to several hundred meters height above the vent, located at about 500 m elevation inside the deep collapse scar.
Approaching the conical island of Komba in the Flores Sea, located about 50 km north of Lembata Isla... [info]
(1211 Treffer)
(1211 Treffer)
Sailing around its southern side, we get a first view of the prominent collapse scarp on the eastern... [info]
(1034 Treffer)
(1034 Treffer)
View into the upper half of the collapse scarp with the active crater in the center of the image. A ... [info]
(747 Treffer)
(747 Treffer)
A strong strombolian explosion on 25 Nov evening throws glowing bombs over much of the upper eastern... [info]
(1724 Treffer)
(1724 Treffer)
A typical average-sized explosion with a small mushroom-shaped ash plume seen in a long exposure dur... [info]
(1024 Treffer)
(1024 Treffer)
About 20 seconds after a stronger explosion on the evening of 25 Nov, lava bombs have mostly landed ... [info]
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(1141 Treffer)
Xavier, Melissa and Richard in observation position, using a comfortable large tree trunk, rocks and... [info]
(1092 Treffer)
(1092 Treffer)
A powerful explosion on 26 Nov sends hundreds of glowing bombs to all sides. (Photo: Tom Pfeiffer) [info]
(1039 Treffer)
(1039 Treffer)
Another strong explosion produces a heavy bombardment of the northern cliff of the scarp next to the... [info]
(955 Treffer)
(955 Treffer)
A large, almost vulcanian-style explosion, the biggest we experienced during our stay, detonates wit... [info]
(1129 Treffer)
(1129 Treffer)
Moderately strong explosion on 26 Nov. (Photo: Tom Pfeiffer) [info]
(1010 Treffer)
(1010 Treffer)
Small but bright strombolian eruption on 26 Nov. (Photo: Tom Pfeiffer) [info]
(1171 Treffer)
(1171 Treffer)
A bright and relatively strong explosion reflected in the completely calm sea. (Photo: Tom Pfeiffer) [info]
(743 Treffer)
(743 Treffer)
Activity was moderate on 25 Nov, somewhat stronger on 26, very weak on 27, but compared to the other... [info]
(655 Treffer)
(655 Treffer)
Strombolian explosion during the evening twilight of 28 Nov. (to see the full sequence, click on "si... [info]
(711 Treffer)
(711 Treffer)
Ash-rich strombolian eruption on 26 Nov. (Photo: Tom Pfeiffer) [info]
(566 Treffer)
(566 Treffer)
Ash-rich eruption during the night of 26-27 Nov. (Photo: Tom Pfeiffer) [info]
(777 Treffer)
(777 Treffer)
View of the crater (center top of image) and the upper half of the scree slope beneath it. Note the ... [info]
(690 Treffer)
(690 Treffer)
A glowing spot was often visible at the rim of the crater. On closer inspection, it was an effusive ... [info]
(639 Treffer)
(639 Treffer)
During phases of increased activity, more lava was effused from the vent on the crater rim, and lava... [info]
(505 Treffer)
(505 Treffer)
The effusive activity was then interrupted by more or less powerful strombolian explosions such as t... [info]
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(773 Treffer)
Ash whirled up by blocks rolling and falling down the steep slope. (Photo: Tom Pfeiffer) [info]
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(549 Treffer)
Explosion rich in both glowing bombs and ash seen in the evening (see "similar images" for sequence)... [info]
(647 Treffer)
(647 Treffer)
Ash venting with almost no visible incandescent lava forms a small plume rising vertically. (Photo: ... [info]
(470 Treffer)
(470 Treffer)
A powerful explosion on the evening of 28 Nov, seen from only a few 100 m distance on the rocky beac... [info]
(655 Treffer)
(655 Treffer)
Bombs rolling down the sciara leave dust trails. (Photo: Tom Pfeiffer) [info]
(532 Treffer)
(532 Treffer)
A steaming splash of a larger block landing in the water after rolling and tumbling down the sciara.... [info]
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(509 Treffer)
The collapse scar seen from the SE, the triangular dark delta is probably the deposit of the recent ... [info]
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(607 Treffer)
Zooom onto the exposed feeder dike (the wall-like structure visible in the lower right of the image)... [info]
(543 Treffer)
(543 Treffer)
Ash venting - billowing ash clouds exit the crater in a continuous manner for a minute or so. (Photo... [info]
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(565 Treffer)
Beginning of an ash-rich explosion. (Photo: Tom Pfeiffer) [info]
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(471 Treffer)
Ash vening. (Photo: Tom Pfeiffer) [info]
(468 Treffer)
(468 Treffer)
An ash plume rising about 500 m after a moderately strong explosion. The cloud drifts towards the we... [info]
(518 Treffer)
(518 Treffer)
batutara_i56427.jpg (Photo: Tom Pfeiffer) [info]
(453 Treffer)
(453 Treffer)
Strombolian explosion at night in moonlight with glowing lava blocks rolling down to the sea. (Photo... [info]
(1002 Treffer)
(1002 Treffer)
The reflection of a stronger explosion on the exceptionally calm water during a full moon night. (Ph... [info]
(913 Treffer)
(913 Treffer)
