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Volcan Erta Ale: Novembre 2009

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The rising full moon over the active lava lake. (Photo: Tom Pfeiffer)
The rising full moon over the active lava lake. (Photo: Tom Pfeiffer) [info]
(2549 Hits)
Watching the lava lake at night (Photo: Tom Pfeiffer)
Watching the lava lake at night (Photo: Tom Pfeiffer) [info]
(2040 Hits)
Erta Ale volcano's lava lake back in Nov 2009.  
The red glow of the lava illuminates the crater walls under the blue sky of dusk. A small group of observers is on the left crater rim. 
During the past 7 years, the lava lake has gradually risen. As of now (Dec 2016), the lava lake has completely filled the pit crater and constructed a new shield by ongoing overflows.  (Photo: Tom Pfeiffer)
Erta Ale volcano's lava lake back in Nov 2009.
The red glow of the lava illuminates the crat... [info]
(9771 Hits)
A larger group (one of those who only stay a few hours) has joined us for a little while...  (Photo: Tom Pfeiffer)
A larger group (one of those who only stay a few hours) has joined us for a little while... (Photo:... [info]
(3030 Hits)
The lava lake at night with rising Orion above it. (Photo: Tom Pfeiffer)
The lava lake at night with rising Orion above it. (Photo: Tom Pfeiffer) [info]
(2405 Hits)
The western part of the lava lake is being overturned. The solid crust is broken into large fragments that sink back into the fluid interior of the lake. (Photo: Tom Pfeiffer)
The western part of the lava lake is being overturned. The solid crust is broken into large fragment... [info]
(4971 Hits)
The crust is breaking apart at the southern margin of the lava lake and fragments are subducted and replaced by fresh hot lava. (Photo: Tom Pfeiffer)
The crust is breaking apart at the southern margin of the lava lake and fragments are subducted and ... [info]
(2670 Hits)
A second later, the gaps between plates have widened and new crust is forming on the cooling lava that has replaced the subducted slab. (Photo: Tom Pfeiffer)
A second later, the gaps between plates have widened and new crust is forming on the cooling lava th... [info]
(2706 Hits)
The north crater with active hornitos which from time to time produce small pahoehoe flows, indicating that the lava level is just beneath the surface. (Photo: Tom Pfeiffer)
The north crater with active hornitos which from time to time produce small pahoehoe flows, indicati... [info]
(1072 Hits)
Glow from the active hornitos in the north crater at night. (Photo: Tom Pfeiffer)
Glow from the active hornitos in the north crater at night. (Photo: Tom Pfeiffer) [info]
(2110 Hits)
Glowing hornitos in the north crater. (Photo: Tom Pfeiffer)
Glowing hornitos in the north crater. (Photo: Tom Pfeiffer) [info]
(3257 Hits)
Glow from the south (l) and the north (r) crater. (Photo: Tom Pfeiffer)
Glow from the south (l) and the north (r) crater. (Photo: Tom Pfeiffer) [info]
(1682 Hits)
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