Dr Boris Behnke gave us the honor of a visit and explained how Etna functions as a reply to Alyson and dfm.
Quote:” We know pretty well how magma moves below and into Etna. Usually when we get seismic signals at 15-25 km depth and a strong increase in soil CO2 emission at the base of Etna, we have to wait several weeks to months to see the magma arrive at the surface. Such deep earthquakes are in any case somewhere away from Etna, because the deepest earthquakes below Etna are not more than 30 km deep (below that is the partially molten Upper Mantle and there’s no seismic activity there)
We had a very clear CO2 signal this summer, a few months before the current (possibly ongoing) series of paroxysms; the same sequence of events has happened also last fall-winter (before the paroxysms of February-April 2013) and on numerous earlier occasions. The latest CO2 increase ended early September 2013, and there has been none since, which means once the current series of paroxysms is over, we’ll have to wait until we get a new CO2 signal and then a few more weeks to months …”
He advised to frequently check: http://www.ct.ingv.it/en
And shortly after this was said, Etna started showing some action.
The Villa Ducale link: http://www.villaducale.com/media-gallery/etna-webcam
The paroxysm is still ongoing as i write this post but clouds moved in, so there is not much to be seen on the cams.
Update: Sissel just commented the following: “To schteve42 and all who like beautiful fireworks:
Boris Behncke made this beautiful video clip “Happy little bubble” yesterday evening, showing a big magma bubble bursting from the crater. Seen from the town of Zafferana Etnea:
Chaparrastique also known as Volcán de San Miguel as it is situated in the province San Miguel, started erupting for the first time after 37 years, although this number might not be correct as Wikipedia stated its last eruption happened in 2003 and in other sources i found that is a very active volcano, if not El Salvadors most active volcano. An ash column rose to a height of 5 km and 5000 people were asked to evacuate. No injuries were reported so far.
Ministerio MARN, El Salvador, Volcanology:
Seismogram of the onset of eruption:
A webcam should be here but is either not accessible at the moment or doesn´t exist anymore:http://www.snet.gob.sv/videos/vsmWebCam.html
Also, Eric has an article on the eruption:
Washington VAAC report as of 23:41 UTC 29/12/2013: ash at FL220 and FL320
The news report as it appears on the BBC: http://www.bbc.co.uk/news/world-latin-america-25545555
( These quotes were taken from comments by Luisport, KarenZ and Granya )
Summitpost.org has some nice images taken while hiking/climbing the volcanoes summit.
UKViggen found some cool panoramas: ”
“Stunning 360° panorama of Uzon caldera:
Takes a while to load, but worth it.
from the same folks who brought you the amazing Tolbachik panorama: http://www.airpano.ru/files/Kamchatka-Volcano-Plosky-Tolbachik/2-2
and the Grimsvotn 360°: http://www.airpano.com/360Degree-VirtualTour.php?3D=Grimsvotn-Iceland
Lots of other Iceland views on the site. ”
No real news have been provided about El Hierro. Earthquake Report showed a satellite image.
Some regulars here are more worried about the grown lava dome on Sinabung then about the situation on El Hierro. Earthquake Report had an update dated 27.12.13 and there they linked a site with information by Bandan Geologi.
In Italy a swarm of earthquakes started, the strongest one was classified as a Mag. 5,2.
I decided to post this summary because its been 4 days since the last post, and quite some stuff happened. It is just a summary, not an eloquent post. I think 2 of the riddles have not been solved so far, but only Carl can solve this mystery.