Volcano Discovery Thursday Apr 11, 2013 12:04 PM
Thermal webcam image of the crater area of Stromboli (INGV)
Strong strombolian activity from the New SE crater
Stromboli (Eolian Islands, Italy): Yesterday evening's lava flow has once again beeen very short-lived. Activity (effusion rate) sharply dropped late in the evening and today, only very small amounts of lava are still overspilling from the NE crater rim. Tremor and rockfall signals are much weaker as well.
...10 Apr:
A strong increase of activity occurred this afternoon. A relatively large, sustained lava flow has started to erupt from the breached NE cone and descend the Sciara del Fuoco. The process is accompanied by ongoing strong strombolian eruptions, mainly from the same NE vent, and strong continuous tremor.
Etna (Sicily, Italy): This time, Etna seems a bit undecided what to do. Strombolian explosions from the New SE crater continued throughout the night and were sometimes quite intense. Tremor has risen a lot (about 10 times background), but has now been stagnating for a while.
Maybe we are in for something different this time, or, more likely, the expected new paroxysm will take longer than the previous ones to build up.
...10 Apr:
It looks almost certain that we are about to "witness" another paroxysm from the New SE crater: Strombolian explosions continue to increase and the tremor signal has started to rise sharply. (Next update tomorrow morning... )
Tolbachik (Kamchatka): The eruption continues with little changes. Strong seismicity of the volcano, although slowly declining, is being registered and accompanies ongoing effusion of lava flows and strong degassing from the southern fissure.
No changes in seismic-visual activity have been reported for the other volcanoes currently active in Kamchata (Kizimen, Sheveluch, Bezymianny: actively growing lava domes associated with occasional avalanches and explosions, Karymski: occasional strombolian-vulcanian explosions, Gorely: strong degassing/hydrothermal activity).
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