WKN Weer, Klimaat en Natuurrampen
Lees alles over het onstuimige weer op onze planeet, volg orkanen en tornado's, zie hoe vulkanen uitbarsten en hoe Moeder Aarde beeft bij een aardbeving. Alles over de verwoestende kracht van onze planeet en tal van andere natuurverschijnselen.
quote:18th eruption Etna this year
CATANIA, Italy – The Etna has intensified its activity today with fountains of lava and ash causing restrictions to air traffic. This eighteenth eruption this year has followed the Stromboli pattern as previous ones did and lasted just a couple of hours. The Crisis Unit at the Catania Fonatanrossa Airport met to assess potential consequences for flights and restricted air space until 16.30 without however affecting passenger flights
quote:Etna spuwt as en lava
CATANIA - De vulkaan Etna op Sicilië is donderdag opnieuw uitgebarsten. Lava stroomt richting de regio Valle del Bove, waar geen mensen wonen, en er hangt een aswolk tot een hoogte van 5000 meter. Dat meldden Italiaanse media.
De top van de Etna is op bijna 3300 meter en de vulkaan is daarmee de hoogste actieve vulkaan in Europa. De laatste uitbarsting had plaats in juli. Toen moest de luchthaven van Catania enige tijd worden gesloten
quote:CATANIA / ETNA
Eruption being the first eruption of Etna in 2012. The ash column projected from the crater reached 5 thousand meters high. The operational limitations of the airport of Catania Fontanarossa. A lava flow is moving toward the Valle del Bove. The lava is far from population centers: VIDEO - PICTURE
The crisis unit constantly monitors the winds to understand its evolution. New update to the Crisis Unit 14.
The strombolian activity of Etna has become intense around 22 PM on January 4. There were no earthquakes recorded by INGV in Catania, but only an increase of tremor. Declared "highly critical" in the area.
Heb een jaar geleden op de rand van de krater gestaan. Indrukwekkend ter plaatse en zeker ook met dit soort berichten. Het leert je des te meer hoe kwetsbaar wij zijn in vergelijking met de kracht van de natuur...
M'n moeder vond het al zo zwart toen ze terugkwam van boodschappen doen... (die zit daar aan de zuidkust, bijna pal ten zuiden van de Etna).
Mocht je helemaal tot de rand gaan dan? Ik ben dit jaar in juni geweest en we mochten maar tot 2300 meter. Zelfs met gids mocht je niet verder.quote:Op donderdag 5 januari 2012 13:48 schreef Coelho het volgende:
Heb een jaar geleden op de rand van de krater gestaan. Indrukwekkend ter plaatse en zeker ook met dit soort berichten. Het leert je des te meer hoe kwetsbaar wij zijn in vergelijking met de kracht van de natuur...
Ja, eerst met eigen vervoer naar de parkeerplaats bij dat oude ski-dorp (noordoosthelling), 1700m of zo. Daarna met Unimog vrachtwagens naar 3000m en van daar te voet verder naar de krater.quote:
[..]
Mocht je helemaal tot de rand gaan dan? Ik ben dit jaar in juni geweest en we mochten maar tot 2300 meter. Zelfs met gids mocht je niet verder.
Leuk detail: mijn auto staat op de foto op google streetview op de parkeerplaats van de Etna.
In juni 2009 mocht ik ook tot bij de krater rand op dezelfde wijzequote:
[..]
Ja, eerst met eigen vervoer naar de parkeerplaats bij dat oude ski-dorp (noordoosthelling), 1700m of zo. Daarna met Unimog vrachtwagens naar 3000m en van daar te voet verder naar de krater.
Leuk detail: mijn auto staat op de foto op google streetview op de parkeerplaats van de Etna.
.Etna
♫
Ah, wij dit jaar in juni dus niet meer. Het stond afgezet met linten waarachter het ten strengste verboden was te trespassen. Wellicht omdat hij vlak daarvoor en al meerdere keren best heftig was uitgebarsten. Tot het eindpunt van die vrachtwagens mochten we (dat hebben wij gelopen, lekker in het stof van die vrachtwagens). Dat was dan inderdaad 2.900 meter.
Benieuwd of we vandaag of morgen een nieuwe eruptie zien bij de Etnaquote:Update 20h15 GMT:
Tremor continues to rise (now at 13), from the webcam image, it seems a lava flow is starting to issue from the SE fracture.
All indicators point towards we are having the 2nd paroxysm in 2012 during the next hours!
The volcanic tremor is now steeply rising (at 8) and vigorous strombolian activity can be seen on the various webcams, possibly a lava flow has started as well.
While strombolian activity continues from the New SE crater of Etna volcano, volcanic tremor has started to rise, suggesting a new paroxysm could be in the making in the next hours, although it is still early to be certain.
The photo (up) from Boris Behncke was taken during the night of 7-8 February 2012, whe the continuing Strombolian activity of the New Southeast Crater on Etna was finally widely visible, after about one week of essentially bad weather.
Some explosions threw incandescent lava bombs outside the crater, although most were rather weak and all material fell back into the crater.
This is a view of one of the stronger explosions observed on the late evening of 7 February 2012, taken from Trecastagni village on the southeast flank of Etna. The activity continued, sometimes vigorously, sometimes more subdued, through the night and morning of 8 February.
Laat maar... Etna did it again 
Mount Etna spews lava on the southern Italian island of Sicily February 9, 2012: Reuters
Mount Etna spews lava on the southern Italian island of Sicily February 9, 2012: Reuters
quote:Update Tue 21 Feb 21:32
The tremor is still rising, and the signal looks very similar to the initial stages of most paroxysms during the past 13 months. Unless Etna is doing something quite different (which is very possible, too), it seems more and more as if the next eruption could happen very soon.
quote:Update Tue 21 Feb 22:57
Etna is unpredictable. Just after our previous update, the tremor signal (currently the only available indicator) dropped sharply to almost half its value. Probably, no "show" tonight!
01 Mar 2012 - New strombolian activity from New SE crater
Sporadic strombolian activity has resumed at the New SE crater early on 29 February. Explosions have been occuring at varying intervals between few minutes and more than 2 hours. The explosions were up to a few tens of meters high and occasionally threw incandescent bombs onto the southern flank of the cone.
02 Mar 09:25
It seems that the activity has gone down, as there seem not to have been new eruptions over the night. Tremor as well is at low levels, but that can all change quickly.
Update Fri 02 Mar 21:38
Sporadic small strombolian explosions from the New SE crater have been observed tonight again, occurring at irregular intervals during more active phases with 10-15 explosions per hour alternating with phases of quiet of sometimes several hours.
Update Sat 03 Mar 19:12
Occasional strombolian explosions are occurring from the summit vent of the New SE crater. At the moment, the tremor signal is very low and not indicating that a paroxysm is to be expected in the immediate future.
Update Sun 04 Mar 08:49
The hoped-for paroxysm of Etna's New SE crater started during the night and is now in full swing as can be seen on both the tremor signal and the webcams. This makes it nr 21 in the series of eruptions that began in 14 months ago, or the 3rd event in 2012.
Lava fountains are now rising from the crater along with a dense column of tephra and steam reaching about 2 km and drifting SE. A lava flow can be seen flowing from the southeasterly aligned fissure taking the normal path towards the Valle del Bove.
The eruption is still increasing in strength, but is probably already near its peak.
Update Sun 04 Mar 09:56
A massive steam plume is rising from somewhere behing on the western side of the cone; it could be a lava flow entering fresh snow there or a pyroclastic flow generated by heavy impacts of incandescent scoria on snow, generating violent phreatomagmatic explosions.
The eruption is still going strong with tall lava fountains rising near vertically from the NSEC, although mostly hidden behind massive steam plumes. However, the tremor just started to drop sharply, and probably heralds the near end of the eruption.
This would make it a relatively short paroxysm, especially when compared to the previous one on 8 Feb, which lasted about 6 hours.
Update Sun 04 Mar 10:19
The eruption is visibly decreasing in strength, and tremor continues to drop quickly. If the paroxysm follows the usual pattern, the eruption will probably be over soon.
Steam and dust obscure views, but it seems that there is either a lava flow on the SW or western side, or another pyroclastic flow reached the S-SW flat area beneath the summit cones, near Torre
del Filosofo, and far from the erupting vent (see webcam images).
Eruption has ended - Update Sun 04 Mar 10:50
The eruption has ended, this time very quickly as often during paroxysms of Etna. Tremor is back to near zero, and the eruption column and lava fountains have disappeared, as the magma column inside the conduit has dropped.
The wait for the next eruption can begin!
Sporadic strombolian activity has resumed at the New SE crater early on 29 February. Explosions have been occuring at varying intervals between few minutes and more than 2 hours. The explosions were up to a few tens of meters high and occasionally threw incandescent bombs onto the southern flank of the cone.
02 Mar 09:25
It seems that the activity has gone down, as there seem not to have been new eruptions over the night. Tremor as well is at low levels, but that can all change quickly.
Update Fri 02 Mar 21:38
Sporadic small strombolian explosions from the New SE crater have been observed tonight again, occurring at irregular intervals during more active phases with 10-15 explosions per hour alternating with phases of quiet of sometimes several hours.
Update Sat 03 Mar 19:12
Occasional strombolian explosions are occurring from the summit vent of the New SE crater. At the moment, the tremor signal is very low and not indicating that a paroxysm is to be expected in the immediate future.
Update Sun 04 Mar 08:49
The hoped-for paroxysm of Etna's New SE crater started during the night and is now in full swing as can be seen on both the tremor signal and the webcams. This makes it nr 21 in the series of eruptions that began in 14 months ago, or the 3rd event in 2012.
Lava fountains are now rising from the crater along with a dense column of tephra and steam reaching about 2 km and drifting SE. A lava flow can be seen flowing from the southeasterly aligned fissure taking the normal path towards the Valle del Bove.
The eruption is still increasing in strength, but is probably already near its peak.
Update Sun 04 Mar 09:56
A massive steam plume is rising from somewhere behing on the western side of the cone; it could be a lava flow entering fresh snow there or a pyroclastic flow generated by heavy impacts of incandescent scoria on snow, generating violent phreatomagmatic explosions.
The eruption is still going strong with tall lava fountains rising near vertically from the NSEC, although mostly hidden behind massive steam plumes. However, the tremor just started to drop sharply, and probably heralds the near end of the eruption.
This would make it a relatively short paroxysm, especially when compared to the previous one on 8 Feb, which lasted about 6 hours.
Update Sun 04 Mar 10:19
The eruption is visibly decreasing in strength, and tremor continues to drop quickly. If the paroxysm follows the usual pattern, the eruption will probably be over soon.
Steam and dust obscure views, but it seems that there is either a lava flow on the SW or western side, or another pyroclastic flow reached the S-SW flat area beneath the summit cones, near Torre
del Filosofo, and far from the erupting vent (see webcam images).
Eruption has ended - Update Sun 04 Mar 10:50
The eruption has ended, this time very quickly as often during paroxysms of Etna. Tremor is back to near zero, and the eruption column and lava fountains have disappeared, as the magma column inside the conduit has dropped.
The wait for the next eruption can begin!
Italy's Mount Etna manifested a new spate of activity, spewing a column of black smoke and ash 6-7 km up into the sky. This is the fourth activity phase for Etna since the start of the year. The volcano was active via its new south-east crater. At present the aiport in nearby Italian city of Catania is operative, but if needed flights will be cancelled, reports ANSA.
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