Krakatoa volcano, Nov 2019: eruptions from Anak Krakatau and impressions

Participant and team member Andrej Nikiforov witnessed the ongoing activity in Anak Krakatau's crater lake during the Krakatau Volcano Special tour in Nov 2019. Here some impressions:
The crater lake seen from the summit of Anak Krakatau (Photo: AndreyNikiforov)
The crater lake seen from the summit of Anak Krakatau (Photo: AndreyNikiforov) [info]
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Phreatic explosions occurred constantly from the center of the lake, ejecting dense jets of mud, stones and steam. (Photo: AndreyNikiforov)
Phreatic explosions occurred constantly from the center of the lake, ejecting dense jets of mud, sto... [info]
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Explosions occurred from multiple vents in the center of the crater lake. (Photo: AndreyNikiforov)
Explosions occurred from multiple vents in the center of the crater lake. (Photo: AndreyNikiforov) [info]
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Jets of dark ash rose several meters. (Photo: AndreyNikiforov)
Jets of dark ash rose several meters. (Photo: AndreyNikiforov) [info]
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The crater lake seen from the shore of the lake. (Photo: AndreyNikiforov)
The crater lake seen from the shore of the lake. (Photo: AndreyNikiforov) [info]
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Some explosions were more powerful than others; this one reached a height of 20-30 meters. (Photo: AndreyNikiforov)
Some explosions were more powerful than others; this one reached a height of 20-30 meters. (Photo: A... [info]
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The island of Sertung seen behind the steam plume from the crater lake. (Photo: AndreyNikiforov)
The island of Sertung seen behind the steam plume from the crater lake. (Photo: AndreyNikiforov) [info]
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Rakata Island in the background with the erupting crater lake in the center of image. (Photo: AndreyNikiforov)
Rakata Island in the background with the erupting crater lake in the center of image. (Photo: Andrey... [info]
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Zoom onto a typical phreatic eruption. (Photo: AndreyNikiforov)
Zoom onto a typical phreatic eruption. (Photo: AndreyNikiforov) [info]
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Small and larger eruptions from two vents. (Photo: AndreyNikiforov)
Small and larger eruptions from two vents. (Photo: AndreyNikiforov) [info]
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The ejection of the dark mud is followed by the release of steam. (Photo: AndreyNikiforov)
The ejection of the dark mud is followed by the release of steam. (Photo: AndreyNikiforov) [info]
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During more energetic phases, small steam surges develop as ring-shaped clouds that expand laterally over the lake surface around the explosion. (Photo: AndreyNikiforov)
During more energetic phases, small steam surges develop as ring-shaped clouds that expand laterally... [info]
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Small explosion close-up (Photo: AndreyNikiforov)
Small explosion close-up (Photo: AndreyNikiforov) [info]
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Dense fingers of dark ash/mud are thrown several meters during a stronger explosion. (Photo: AndreyNikiforov)
Dense fingers of dark ash/mud are thrown several meters during a stronger explosion. (Photo: AndreyN... [info]
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Steam engulfs the material immediately after the eruption. (Photo: AndreyNikiforov)
Steam engulfs the material immediately after the eruption. (Photo: AndreyNikiforov) [info]
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The lake surface covered with gray mud, broken by a moderately strong explosion. (Photo: AndreyNikiforov)
The lake surface covered with gray mud, broken by a moderately strong explosion. (Photo: AndreyNikif... [info]
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Energetic explosion, steam plumes developing between the dark ash jets. (Photo: AndreyNikiforov)
Energetic explosion, steam plumes developing between the dark ash jets. (Photo: AndreyNikiforov) [info]
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Zoom onto a stronger eruption (Photo: AndreyNikiforov)
Zoom onto a stronger eruption (Photo: AndreyNikiforov) [info]
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Orange-colored sea water due to suspended particles in front of Anak Krakatau's western shore where the active crater lake is located. (Photo: AndreyNikiforov)
Orange-colored sea water due to suspended particles in front of Anak Krakatau's western shore where ... [info]
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Anak Krakatau and its crater seen from the sea (Photo: AndreyNikiforov)
Anak Krakatau and its crater seen from the sea (Photo: AndreyNikiforov) [info]
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Our expedition leader Galih (Photo: AndreyNikiforov)
Our expedition leader Galih (Photo: AndreyNikiforov) [info]
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Looking towards Panjang Island, part of the eastern caldera rim of Krakatau volcano (Photo: AndreyNikiforov)
Looking towards Panjang Island, part of the eastern caldera rim of Krakatau volcano (Photo: AndreyNi... [info]
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What is left of Anak Krakatau seen from the south. (Photo: AndreyNikiforov)
What is left of Anak Krakatau seen from the south. (Photo: AndreyNikiforov) [info]
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View towards the crater area of Anak Krakatau from the sea (Photo: AndreyNikiforov)
View towards the crater area of Anak Krakatau from the sea (Photo: AndreyNikiforov) [info]
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Small eruption and the dense acid steam plume rising from the crater lake. (Photo: AndreyNikiforov)
Small eruption and the dense acid steam plume rising from the crater lake. (Photo: AndreyNikiforov) [info]
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Remnants of vegetation from the NW tip of Anak Krakatau, destroyed during the intense surtseyan activity following the collapse of the island in Dec 2018. (Photo: AndreyNikiforov)
Remnants of vegetation from the NW tip of Anak Krakatau, destroyed during the intense surtseyan acti... [info]
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Landing on Anak Krakatau (Photo: AndreyNikiforov)
Landing on Anak Krakatau (Photo: AndreyNikiforov) [info]
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Rain falls have cut deep canyon into the several meters-thick ash deposits that were deposited after the collapse in Dec 2018. (Photo: AndreyNikiforov)
Rain falls have cut deep canyon into the several meters-thick ash deposits that were deposited after... [info]
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Anak Krakatau beach in the evening (Photo: AndreyNikiforov)
Anak Krakatau beach in the evening (Photo: AndreyNikiforov) [info]
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Our campsite on Sertung island (Photo: AndreyNikiforov)
Our campsite on Sertung island (Photo: AndreyNikiforov) [info]
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Trees were ripped off their trunks by the sheer force of the tsunami wave on 22 Dec 2018. (Photo: AndreyNikiforov)
Trees were ripped off their trunks by the sheer force of the tsunami wave on 22 Dec 2018. (Photo: An... [info]
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A single surviving tree on the beach of Panjang island (Photo: AndreyNikiforov)
A single surviving tree on the beach of Panjang island (Photo: AndreyNikiforov) [info]
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Selfie of Andrej on the crater rim of Anak Krakatau (Photo: AndreyNikiforov)
Selfie of Andrej on the crater rim of Anak Krakatau (Photo: AndreyNikiforov) [info]
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Cliff of Panjang Island with tsunami damage still clearly visible. (Photo: AndreyNikiforov)
Cliff of Panjang Island with tsunami damage still clearly visible. (Photo: AndreyNikiforov) [info]
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Western coast of Panjang island with vegetation slowly recovering (Photo: AndreyNikiforov)
Western coast of Panjang island with vegetation slowly recovering (Photo: AndreyNikiforov) [info]
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Pumice cliff of Panjang Island (1883 eruption deposits form most part of the cliff). (Photo: AndreyNikiforov)
Pumice cliff of Panjang Island (1883 eruption deposits form most part of the cliff). (Photo: AndreyN... [info]
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The inner coast of Rakata, where previous camps had been located. All of the approx. 30 m wide beach terrace was washed away during the tsunami, and parts of the cliff collapsed in a large landslide seen here in the foreground. (Photo: AndreyNikiforov)
The inner coast of Rakata, where previous camps had been located. All of the approx. 30 m wide beach... [info]
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Inner coast of Rakata seen from the NW with the former campsite beach in the lower right. (Photo: AndreyNikiforov)
Inner coast of Rakata seen from the NW with the former campsite beach in the lower right. (Photo: An... [info]
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Ronny and Galih "at work" near the lake shore of Anak Krakatau (Photo: AndreyNikiforov)
Ronny and Galih "at work" near the lake shore of Anak Krakatau (Photo: AndreyNikiforov) [info]
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Sailing away again from a very dangerous place... (Photo: AndreyNikiforov)
Sailing away again from a very dangerous place... (Photo: AndreyNikiforov) [info]
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