Volcanic activity worldwide 16 Jun 2015: Semeru volcano, Bulusan, Sinabung, Asama
Tuesday Jun 16, 2015 21:00 PM |
Eruption from Semeru on 11 June 2015 (photo: Aris Yanto)Asama (Honshu): (16 Jun) A small eruption occurred at the volcano this morning around 9am local time.
The Japanese Meteorological Agency (JMA) confirmed light ash fall occurred in 4 km north of the volcano. A short phase of increased seismic activity preceded and accompanied the explosion. According to a news article, JMA scientists think that today's explosion will likely be followed by similar ones in the near future, but not lead to a larger scale eruption.
There are no clear signs (such as deformation) of a major body of fresh magma is rising under the volcano. In that case, a possible scenario is that the eruption this morning is mostly phreatic in origin, i.e. driven by overheated ground water with no or little involvement of new magma.
Bulusan (Luzon Island, Philippines): (16 Jun) Two small steam-driven (i.e. phreatic) explosions occurred at the volcano this morning at 11:02 and 11:20 local time, PHILVOLCS reported.
The first lasted 2 minutes and generated a steam and ash plume that rose 1 km and drifted WSW. Rumbling sounds were heard in the villages of Cogon and Irosin on the WSW slopes.
... [read more]
Sinabung (Sumatra, Indonesia): (16 Jun) Pyroclastic flows continue to threaten the southeastern and east-northeastern slopes of the volcano.
According to a news article, approx. 1,200 people were evacuated yesterday, bringing the total number of current refugees to almost 4,000. Another 2,500 residents should be evacuated over the next few days.
Semeru (East Java, Indonesia): (15 Jun) Japa's highest volcano has resumed its typical, intermittent ash-righ explosions.
Our friend Aris Yanto climbed the volcano on 11 June and shared the attached picture on his facebook page.
Sunday, Jun 14, 2015
Sinabung (Sumatra, Indonesia): (14 Jun) Pyroclastic flows caused by collapse of parts of the viscous dome on the volcano's summit have started to be more frequent and larger again. Yesterday, about ten flows were generated that descended both through the SE and the ENE channel, reaching up to 3 km distance. ... [meer...]
Friday, Jun 12, 2015
Thursday, Jun 11, 2015
Karangetang (Siau Island, Sangihe Islands, Indonesia): (11 Jun) Activity continues at the volcano with the effusion of a lava flow from the summit vent of the volcano and associated glowing avalanches. ... [meer...]
Wednesday, Jun 10, 2015
Saturday, Jun 06, 2015