Krakatau volcano (Sunda Strait, Indonesia): high seismic activity, new eruption in progress?
Tuesday Oct 11, 2011 10:11 AM |
Øystein Lund Andersen sent a report about his recent visit to the Krakatau obsvervation post on West-Java last weekend:
"As you may know Krakatau have seen a huge increase of Volcanic quakes, shallow earthquakes. Before the earthquake swarm started (before Sep 30) the rate was around 80-200 per day. When I visited the observatory the rate was around 5000, even 6000 this sunday. The people at the observatory claim they have never seen a rate like this from Krakatau, and question themselves what will come? On sunday they went to Krakatau to position two more seismograph to get more clearer data to work on.
Im really intrested in the subject, and I have posted a video of of the seismograph taken on saturday 8th october. See it here.
How would you interpret this, is it reasonable to think that something bigger than the usual strombolian eruptions to occur?"
Tuesday, Oct 04, 2011
A new eruption occurred at Anak Krakatau yesterday (3 Oct). A large (2-3 km high) ash cloud was seen rising from the volcano observatory on Java's west coast and is seen in a news TV video. ... [more]
Sunday, Oct 02, 2011
Increased seismic activity recorded at Anak Krakatau has been detected in recent days, suggesting a new eruptive phase might be under way. The Indonesian Volcanological Survey has raised the alert level to 3 (out of 4). [more]
Tuesday, Sep 06, 2011
Our colleague Chris Weber who is currently touring on Java reported observing small lava fountains from a vent inside the summit crater of Anak Krakatau volcano. The fountains reached a height of ca. 10 meters. [more]
Wednesday, Aug 17, 2011
An active lava lake can be seen inside the crater of Krakatau. As our Indonesian correspondant and team member Andi reports: ... [more]
Thursday, Aug 04, 2011
In recent weeks, small activity has resumed at the summit crater of Anak Krakatau, as satellite data show. The volcano has been producing occasional ash explosions, reaching few 100 meters height. [more]