Visit to Bromo volcano 23-25th July 2016

Activity of the Volcano

The latest eruptive phase of Bromo started in December 2015. The eruptive activity was in the beginning dominated by the ejection of ash and lapili. In late January and February the activity increased and larger explosions were seem, sometimes accompanied by the ejection of lava-bombs/blocks, loud eruption/rumbling sounds and shock-waves. In this period there were also days when strong crater-glow was seen above the crater at night.

The eruptive activity had a short period of rest between the end of February until the end of March. During this period the activity was dominated by degassing but no ash-venting/eruptions.

The Indonesian Volcanology Survey (PVMBG) noted a increase in seismic activity in the first week of April, that was followed by new eruptive activity. Ash-venting and crater-glow was observed. The ash-output was lower than February/March levels. Eruption/rumbling sounds was also present, but lower than January/February levels.

During the second week of April, the activity decreased again and only weak to moderate degassing plumes was observed during until first week of May.

The last week of May the activity increased again, and resumed eruptive activity similar to the activity observed in April.

During June and July the intermittent activity continued, days with only a degassing plume present and periods of low to medium strong ash-venting activity. In the second week of July, ash-fall caused the airport of Malang to close for a few days.

Note: The eruptive phase is still ongoing.

 

23-25th July

On the 23th July a medium strong degassing plume was present, however decreased in significance in the evening. The degassing was accompanied by a medium strong rumbling sound that was present throughout the day.  Weak crater glow was visible on photos during a few times during the evening. On the 24th activity decreased, and only a weak plume was seen emitted from the crater, but there was also periods of complete calm. A similar state was observed on the 25th, until I departed the area at midday.

No ash eruptions was seen during this visit.

 

23th July

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
Degassing plume reaching about 200m above the crater and drifting West.

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

Thunderstorm Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
Single celled thunderstorm behind one of the walls of the Ngadasari caldera.
Thunderstorm Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
Huge multicell thunderstorm having matured behind the Arjuna-Welirang volcano.

thunderstorm Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
Bromo emitting a steady steam-plume, under the strong-moon light.

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
The Argupura mountains, with the Raung and ijen volcano in the background.

 

24th July

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
The Argopura mountains rising from the low laying clouds.

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
A sparse emission cloud over Bromo,.

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen
Batok volcano casting its shade over Bromo in the afternoon.

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen

25th July

Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen Bromo Tengger Java Indonesia july 2016 Volcano Geology Oystein Andersen



Loading Facebook Comments ...

One Response to Visit to Bromo volcano 23-25th July 2016

  1. please leave a comment