Krakatau volcano (Indonesia) Nov 2018 eruption: a magic night on the island
The activity observed on 19 Nov continued in a more or less similar way during 20 Nov, although the frequency of explosions had decreased to typically 30 seconds to 1-2 minutes. As the size of explosions observed during the 36 hours we had been on the island group did not exceed a certain threshold (ejecting bombs to the sea), a part of our group decided to take the calculated risk and spend some time on a favorable viewing spot behind the forest and near the shore of Anak Krakatau.
When eruptions eventually started to increase significantly, we left.
Disclaimer: visiting such spots during eruptive phases of Krakatau is very risky and you should be aware that no place on the island of Anak Krakatau is safe from bombs - unexpected large explosions can occur with no warning at any time.
When eruptions eventually started to increase significantly, we left.
Disclaimer: visiting such spots during eruptive phases of Krakatau is very risky and you should be aware that no place on the island of Anak Krakatau is safe from bombs - unexpected large explosions can occur with no warning at any time.

Beginning of an average-sized ash-rich explosion at sunset. (Photo: Tom Pfeiffer) [info]
(149 visti)
(149 visti)

A similar, small vulcanian-type ash-rich explosion follows a few minutes later (sequence 1/3). (Phot... [info]
(150 visti)
(150 visti)

A very large lava bomb, probably about 3 meter in diameter is ejected out above the eastern rim (seq... [info]
(171 visti)
(171 visti)

The bombs have mostly landed and a dense ash plume rises (sequence 3/3). (Photo: Tom Pfeiffer) [info]
(154 visti)
(154 visti)

Lava-rich strombolian type explosion (2/4). (Photo: Tom Pfeiffer) [info]
(181 visti)
(181 visti)

Lava-rich strombolian type explosion (3/4). (Photo: Tom Pfeiffer) [info]
(210 visti)
(210 visti)

Lava-rich strombolian type explosion (4/4). (Photo: Tom Pfeiffer) [info]
(195 visti)
(195 visti)

Many eruptions are much smaller, however. (Photo: Tom Pfeiffer) [info]
(141 visti)
(141 visti)

The eruption now looks like a glowing wall of lava thrown into the air and falling back, (Photo: Tom... [info]
(176 visti)
(176 visti)

Red lava against the blue sky of the evening twilight. (Photo: Tom Pfeiffer) [info]
(146 visti)
(146 visti)

As the blue hour is over, the strong moonlight takes its place. (Photo: Tom Pfeiffer) [info]
(200 visti)
(200 visti)

Ash plume rising from an explosion that just ended. (Photo: Tom Pfeiffer) [info]
(122 visti)
(122 visti)

Rain of glowing bombs (Photo: Tom Pfeiffer) [info]
(125 visti)
(125 visti)

A very powerful (although comparably poor in incandescent material) explosion sends bombs to all ove... [info]
(126 visti)
(126 visti)

Mild strombolian eruption (Photo: Tom Pfeiffer) [info]
(117 visti)
(117 visti)

Moderate strombolian eruption (Photo: Tom Pfeiffer) [info]
(136 visti)
(136 visti)

Very strong strombolian eruption... (Photo: Tom Pfeiffer) [info]
(189 visti)
(189 visti)

Fortunately, the increasing trend is broken by an "only" moderately-sized explosion following the pr... [info]
(147 visti)
(147 visti)

Another moderately strong explosion, but with less incandescent lava (and better to photograph). (Ph... [info]
(135 visti)
(135 visti)

This eruption covered the eastern slope of the cone with incandescent material. (Photo: Tom Pfeiffer... [info]
(148 visti)
(148 visti)

An ash-rich explosion observed with a wider angle lens. (Photo: Tom Pfeiffer) [info]
(109 visti)
(109 visti)

Silhouettes of the forest on the southern and eastern part of the island are visible in the lower ri... [info]
(125 visti)
(125 visti)

A larger explosion covers the whole cone of Anak Krakatau with lava bombs. (Photo: Tom Pfeiffer) [info]
(464 visti)
(464 visti)

A few minutes later, a stronger explosion occurs. (Photo: Tom Pfeiffer) [info]
(146 visti)
(146 visti)

Shorter exposure with higher ISO setting (1600 ASA) the moment most of the material ejected by anoth... [info]
(185 visti)
(185 visti)

Almost all eruptions now are rather on the large side of the scale... (Photo: Tom Pfeiffer) [info]
(135 visti)
(135 visti)

Beautiful symmetric eruption. (Photo: Tom Pfeiffer) [info]
(137 visti)
(137 visti)

"Classic" strombolian eruption with lots of red hot lava. (Photo: Tom Pfeiffer) [info]
(146 visti)
(146 visti)

Lava watchers in position for the show. (Photo: Tom Pfeiffer) [info]
(172 visti)
(172 visti)

Wide-angle view of our observation spot with a large strombolian eruption occurring in the backgroun... [info]
(264 visti)
(264 visti)

For a while, activity returns to regular strombolian explosions at intervals of few minutes and mode... [info]
(131 visti)
(131 visti)

Strombolian eruption against a moonlit sky. (Photo: Tom Pfeiffer) [info]
(133 visti)
(133 visti)