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Stromboli volcano (Italy), activity update: strong activity continues

Sun, 25 Jun 2006, 16:06
16:06 PM | BY: TOM PFEIFFER
Stromboli volcano's crater terrace with 7 of the 9 active vents visible: from left to right, a tall eruption from the NW crater, 2 visible glowing vents in the central crater, the spattering NE cone of the central crater with its smaller flank vent, and two vents (one erupting weakly) of the NE crater. (Photo taken early on 25 June)
Stromboli volcano's crater terrace with 7 of the 9 active vents visible: from left to right, a tall eruption from the NW crater, 2 visible glowing vents in the central crater, the spattering NE cone of the central crater with its smaller flank vent, and two vents (one erupting weakly) of the NE crater. (Photo taken early on 25 June)

During the past weeks and months, Stromboli has continued to show extraordinarily high activity as several groups of VolcanoDiscovery have observed.
During a visit on 24 June, 9 active vents were counted: two active vents in the NW crater (towards Ginostra), one of which exploded with tremendous noise every 20-30 minutes, throwing powerful jets of burning gas followed by large amounts of spatter to heights of up to 3-400 m, showering the OUTER rims of the crater terrace. A neighboring vent, a few meters away from it, is normally not visible, but when it erupted, it had the appearance of the ground opening and emitting glowing ash that slowy rose, blackened and created small ash plumes.
In the central crater, 4 visible glowing vents and one hidden behind the wall were active, the most prominent being the tall cone in the NE corner of the complex. The NE cone was spattering constantly, throwing spatter to considerable 50-100 m height. This activity was interupted every 5-10 minutes by strong, hissing fountains lasting up to 20 seconds, and thowing incandescent material to up to about 250 height. At times, the force of the fountain activated a second vent next to it, on the SE side of the cone, apparently serving as an additional valve whenever the output rate during the fountains from the cone itself becomes too large. Two other vents in the central crater complex were large, constantly glowing holes, but showed only occasional weak spattering and erupted only rarely strombolian bursts of spatter to 100-150 m height. A fith vent is not visible from Pizzo, but on a visit on 15 June, it was observed to erupt spatter occasionally to about 100 m height (about once per hour).On 25 of June, it was not erupting.
Last, there were two active vents in the NE crater (towards the village of Stromboli), one of which erupts spectacularly about every 20-30 minutes, throwing lots of incandescent bombs towards the E, showering the outer crater slope with bombs. These eruptions also produced dense ash clouds.


A first set of photos taken by Marco Fulle during our tour from 20-28 May are online at Stromboli Online here.


-->Stromboli volcano news

Previous news
Mon, 17 Apr 2006, 20:09
Because of the recent interesting volcanic activity at Merapi and Semeru volcano on Java, we point to two tours with open spaces for last-minute individual bookings: ... read all
Fri, 10 Mar 2006, 22:26
Due to lack of participants, we decided to cancel the tour to North Sulawesi and postpone it to 2007. As an interesting alternative, we can offer a special trekking tour in Java and Bali from 5-20 August instead. There are two open spaces available. ... read all
Sat, 4 Mar 2006, 01:47
We hare glad to announce that we can now offer an additional date for the tour on Nisyros island, Greece, this autumn: 6-15 October 2006. Details to the tour are found here.  ... read all
Fri, 24 Feb 2006, 20:07
The dates for the new expedition to Nyiragongo volcano are now set to 19-27 July, 2006. 3 spaces are still available. Details here. ... read all
Tue, 7 Feb 2006, 16:25
Tom and Marco are just back home from our pilot tour to Nyiragongo volcano, which was very successful, so we plan to repeat the tour in July this year already. In the near future, we will post photos from the tour as well as details about the tour. Stay tuned! read all
 

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