Agung volcano news & activity updates:
Agung volcano (Bali, Indonesia): increasing seismic activity
Friday Oct 13, 2017 22:49 PM | DOOR: T
Current seismic plot from VSI's TMKS station showing a swarm of quakes under Agung and possibly some tremor (thicker baseline)
The likelihood of an eruption of the volcano in the near future remains high. Seismic activity is unchanged at very elevated levels, with averages of around 8-900 earthquakes per day.
Recent seismic activity at Agung
Swarms of volcanic quakes likely reflect rock fracturing events by internal fluid pressure as magma intrudes the edifice at shallow depths. An increase in quakes occurred this evening (early morning in Bali) and can be seen on the seismogram.
In addition, weak episodes of non-harmonic volcanic tremor have begun to occur during the past days as well; while it is not completely understood what causes the various types of volcanic tremor, the common interpretation is that internal movements of magma cause oscillations of the fluid and its conduits (in a similar way as passing air in organ pipes causes resonance).
At the surface, the volcano remains however more or less calm. Only a small white steam plume can be seen rising from the crater. An attempt to survey the crater with a drone yesterday failed as the device crashed on its ascent.
There are unconfirmed reports from people in the area who told in posts on facebook and other media that animals have started to show unusual behavior. How significant and reliable such reports are is questionable.
Sunday, Oct 08, 2017
The situation of the volcano remains unchanged and continues to be critical: based on available monitoring data, the volcano could (but not necessarily will) erupt at any time with little further precursors. ... [meer...]
Monday, Oct 02, 2017
The situation at the volcano remains unchanged (no eruption), although the highest level of alert remains in place as no one is able to know whether or when it will erupt. ... [meer...]
Friday, Sep 29, 2017
The volcano has been becoming increasingly restless during the past days, which makes the likelihood of a new eruption now larger than the chance that no eruption occurs, according to Indonesian volcanologists. ... [meer...]
Tuesday, Sep 26, 2017
The volcanic crisis continues, but so far there is no eruption and it is still impossible to predict whether one actually will occur or not. ... [meer...]
Saturday, Sep 23, 2017
The alert level of the volcano was again raised to the now highest level (4, "awas") as seismic activity continued to increase sharply and an eruption can be expected to occur any time. ... [meer...]
Hazard map of Agung volcano (Sep 2017)
Hazard map of Agung volcano (PVMBG)