Wednesday, Jul 23, 2014
Activity, weak during the past months, seems to have picked up. A new lava flow has started to slowly descend the southeastern slope. ...more [read all]
Progression of a presumed lava flow (thermal anomaly) on the SE slope (Images: ASTER/GSJ, compiled and annotated by Culture Volcan)
Friday, Oct 18, 2013
A pilot observed a small ash eruption this morning. The volcano had recently been very calm, but this could be a sign it is getting more active again.
Wednesday, Jul 25, 2012
The lava dome of Semeru volcano, East Java, is active and growing slowly our recent expedition group observed on 18-19 July during our trekking tour Volcanoes of Java. ...more
The active lava dome inside Semeru's summit crater as seen on 19 July (Photo: Andi / VolcanoDiscovery)
Tuesday, May 08, 2012
CVGHM reported that during 1-29 February multiple pyroclastic flows from Semeru traveled 500 and 2,500 m into the Besuk Kembar and Besuk Kobokan rivers (on the S flank), respectively. During 1 February-30 April dense gray-to-white plumes rose 100-500 m above Jongring Seloko crater and drifted W and N. Incandescence was visible up to 50 m above the crater during 1 February-31 March. Seismicity decreased from March to April. Observations indicated that the lava dome grew in April. On 2 May CVGHM lowered the Alert Level to 2 (on a scale of 1-4) and reminded the public not to approach the crater within a 4-km radius. ...more
Thursday, Mar 29, 2012
Our expedition leader Doni just returned from a visit to Semeru and reports that on 27 March, he and our group observed frequent explosions every few minutes, with many powerful enough to eject glowing bombs to produce small glowing avalanches down on the southern flank of the volcano.
Monday, Feb 06, 2012
A slight increase in activity of Semeru volcano's activity has been observed by the Indonesian Geological Survey in recent weeks and its alert level was raised to 3 (out of 4, "watch") on 3 February 2012, after it had been on level 2 since 16 July 2009. ...more [read all]
Thursday, Sep 15, 2011
Tuesday, May 17, 2011
Friday, Oct 31, 2008
The Darwin VAAC reported that a ash plume from Semeru that rose to an altitude of 4.3 km and drifted WSW on 22 October.
Monday, Oct 20, 2008
I was on a flight yesyerday from Jember to Surabaya with 2 friends and saw Mt Semeru explode at app. 09.37 on the 18 Oct 2008. We were about 20 km from the mountain when I noticed the the top had a small gray mushroom at the top with in a minute or so i was extremley greater in size. I would not be able to guess how high it rose but it was larger than the clouds around. I'm just sending this message as I did not read anything in the news. ...more [read all]