Mt. Semeru Volcano, Indonesia
Type of volcano: Stratovolcano.
Location: East Java, Indonesia
Semeru, or Mount Semeru (Indonesian: Gunung Semeru), is a volcano located in East Java, Indonesia. It is the highest mountain on the island of Java rising 3676m above sea-level. The stratovolcano is also known as Mahameru, meaning 'The Great Mountain in the Javanese language.
Read more in depth information about Semeru at: The Smithsonian's Global Volcanism Program
10-11th October 2014
Posted: 15th October 2014.
Photos: 15 available
Activity levels at Semeru have picked up pace the last months, as was observed visually and also seen trough continious hotspot activity by the MODIS thermal monitoring system. Activity level looked similar to my visit on in August and September. On this visit I made it to the summit, and observed the growing lava dome, moderate degassing and frequent mild strombolian eruptions that sent material up to heights of 50-100meter above the crater. Rumbling sounds was heard constantly, presumably from the pressure released during the degassing and strombolian events.
Unfortunatly I did not have the opportunity to document my nighttime-observations from the summit, as my porter carrying my camera gear wasnt able to reach the summit, so the only camera I had available on the summit was on a phone. :(
Click photo to open gallery
13th September 2014
Posted: 16th September 2014.
Photos: 5 available in format/size: RAW/JPG - 5472 x 3648 pixels. 200+ photos not presented on the webpage.
Video: available on request only.
Activity levels at Semeru have picked up pace the last months, as was observed last month visually and also seen trough continious hotspot activity by the MODIS thermal monitoring system. Rockfall from the growing lava-dome was observed on this visit as well, and the activity level looked similar to my visit on 27-28th August. I did not manage to view of photograph the volcano during the night, as the area was covered in fog all night until early morning after sunrise.
Click photo to open gallery. (5 photos)
27-28th August 2014.
Posted: 1th September 2014.
Photos: 15 available in format/size: RAW/JPG - 5472 x 3648 pixels. 200+ photos not presented on the webpage.
Video: available on request only.
Activity levels at Semeru have picked up pace the last month. During a visit on 27-28th June I observed a contant crater glow caused by incandescent material in the crater, small strombolian activity and rockfall from the crater-area/lava dome.
Click photo to open gallery. (15 photos)
13-15th June 2014.
Activity level the same as my visit in May 2014.
14th June 2014.
25th May 2014.
Semeru volcano have shown a increase since last visit. The eruptions are more frequent (every 30min to 1 hour) and it`s plumes are more ash-rich than the ones observed during 2013.
9th March 2014.
Only witnessed two small eruption plumes from Semeru on this visit, and those happened with approximately 1 hour between them. The eruption clouds seem to contain little or no ash, these days. Recent reports, however, states that a lava-dome is growing in the crater of Semeru.
Semeru under (right bottom) under the milky way. (9th March - 03.50 local time)
Semeru in the background of the Tengger-caldera. (07:58)
Semeru erupts in the morning. The eruption cloud seem to contain little or no ash, these days. (08:42)
Eruption cloud up close. (08:42)
27 December 2013.
Photos taken from the Bromo Tengger national park.
29-30 October, 2011.
Photos taken from villages in the district of Lumajang, south of Semeru. With the month of october marking the start of this year`s rainy season, unfortunately the weather wasn`t optimal, had no possibilitiy to catch any eruptions during night time.
Type of activity: Mt. Semuru sent up ash cloudes every 30+/- minute.
Trucks collecting fine volcanic sand/dust of at the base of Semeru. The sand is used locally to produce cement for house building, however mostly transported to large cirtes in the vicinity, like Malang or Surabaya, to be sold for the same purpose. The riverbed seen on the photo contains not only sand/ash brought by lahars from Semeru but also bigger volcanic blocks.
20 August 2011.
Type of activity: Mt. Semuru sent up ash cloudes every 1 hour or so.
Semeru seen from the Tengger caldera.
5 December, 2010.
Type of activity: Strombolian eruptions every 30min to 1 hour.
Mt. Semeru seen behind the erupting Bromo Volcano.
Řystein Lund Andersen © 2014