2016 April

16-18th April  2016

Updated: 17th April 07:15 local time.

 

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Activity of the Volcano

The ongoing eruptive activity that started in December 2015, 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, similar to the activity during December-February.

The Indonesian Volcanology Survey  (PVMBG) have officially stated that people are not allowed to venture to the crater area of the volcano after the volcano started showing signs of increased activity, however this restriction zone is not implemented, as there are no officials guarding the access to the crater area, and tens of people were observed standing on the crater rim on the 16th April (see photo below). This is concerning, taking into the account that most people who visit the area are arriving as tourists, and are not aware of the potential dangers of a erupting volcano.

16 April

Arrived early morning, and observed the volcano during the early hours. Bromo was releasing a constant and strong plume. The activity was highlighted by moderately strong rumbling sounds and crater glow during the night. Some ash venting was observed but no eruptions of volcanic rocks.

During midday a ash-eruption occurred, and luckily I had my drone above during the event (see video below).

Bromo Tengger Indonesia Eruption Volcano April 2016
Strong plume from Bromo accompanied by some ash-venting and a loud rumbling sound
Bromo Tengger Indonesia Eruption Volcano April 2016
Plume from Bromo drifting West towards the city of Malang. The airport in Malang was closed earlier this week (11th April) because of ash-fall in the vicinity.
Bromo Tengger Indonesia Eruption Volcano April 2016
Red crater glow was almost constant.

Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016

Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016

Bromo Tengger Indonesia Eruption Volcano April 2016
ash-eruption
Bromo Tengger Indonesia Eruption Volcano April 2016
People at the rim of the crater. Most of the visitors are not aware of the dangerous of an erupting volcano.

Bromo Tengger Indonesia Eruption Volcano April 2016

aerial drone uav Bromo Tengger Indonesia Eruption Volcano April 2016
Ash-eruption

aerial drone uav Bromo Tengger Indonesia Eruption Volcano April 2016

aerial drone uav Bromo Tengger Indonesia Eruption Volcano April 2016
The ash-eruption last for around 10min.
Bromo Tengger Indonesia Eruption Volcano April 2016
Lightning strike in the background of Bromo.
Bromo Tengger Indonesia Eruption Volcano April 2016
The red glow appear at dawn.

Bromo Tengger Indonesia Eruption Volcano April 2016

17 April

The volcanic-activity was at the same level today. A spike in ash-venting and ash-fall was osberved during the afternoon, but poor weather prevented photography.

 

Bromo Tengger Indonesia Eruption Volcano April 2016
Bromo steaming. The volcano was heard rumbling throughout the night.
Bromo Tengger Indonesia Eruption Volcano April 2016
The red crater glow was intense at times, indicating that the erupting state of Bromo is not yet come to an end.

Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016 Bromo Tengger Indonesia Eruption Volcano April 2016  Bromo Tengger Indonesia Eruption Volcano April 2016

 Bromo Tengger Indonesia Eruption Volcano April 2016
Aerial view from a hobby UAV.

Bromo-Volcano-Aerial-17th-April-2016-(DJI_0659)  Bromo Tengger Indonesia Eruption Volcano April 2016

Batok Bromo Tengger Indonesia Eruption Volcano April 2016
One of the other volcanic cones in the Tengger Caldera, Batok. Bromo is situated behind Batok.
 Bromo Tengger Indonesia Eruption Volcano April 2016
The western wall of the Tengger Caldera. The mountains in the back is the Arjuna Welirang volcano.
 Bromo Tengger Indonesia Eruption Volcano April 2016
Sunrise
Semeru Bromo Tengger Indonesia Eruption Volcano April 2016
Semeru sending of a puff a small eruption plume.
Arjuna-Welirang-Volcano-17th-April-2016-(IMG_1545)
The Arjuna-Welirang-Volcano.

 

Videos

Summary of visit:

The Indonesian Volcanology Survey  (PVMBG) noted a increase in seismic activity in the first week of April, that was followed by new eruptive activity, similar to the activity during December-February. The current activity level, characterized by intermittent periods of degassing and ash eruptions/venting,  seems to be slightly decreased compared to february levels. However the activity levels could increase again.