WARNING: Etna
is currently showing only weak eruptive activity at the summit
craters, but as always visits to the summit area expose escursionists
to high risks, especially those risks related to unstable weather
conditions.
Although
the winter in Sicily seems essentially over, heavy snow falls
might still occur until early May, and unstable weather in general
is among the main risks that visitors to the summit area have
to face. Generally access to the summit craters without guides
is prohibited. Guided excursions in jeeps to about 2700 m elevation
are offered since March 2002 on the southern flank, and on the
northern flank excursions are offered to about 2600 m (Piano
delle Concazze).
The mountain guides and excursion services can be contacted
at the cable car building (near the Rifugio Sapienza on the
southern flank), telephone +39-095-914141; or at the Hotel Le
Betulle (Piano Provenzana on the northern flank), telephone
+39-095-643430. Further information (in Italian) is available
on the Funivia
dell'Etna web site.
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The
latest update is near the bottom of this page
2
June 2002 update.
The
past three weeks have been very quiet at Etna; most activity has consisted
of gas emissions from three of the four summit craters (Northeast
Crater, Voragine and Bocca Nuova), while fumaroles are emitting white
vapor on the upper slopes of the Southeast Crater. Occasional emissions
of brownish (probably lithic) ash have continued at fairly long intervals
at the Northeast Crater and alternatingly from the two pits within
the Bocca Nuova. Several small new fumaroles have formed on the lower
southeastern flank of the Southeast Crater cone during the past week,
which coincide with a fracture that was active during the July-August
2001 eruption. The appearance of these fumaroles may indicate that
the crater is slowly heating up, but currently there is no sign of
heightened activity in the immediate future.
During a visit to the summit craters on 30 May, few changes were noted
that had occurred since the previous summit visit on 28 January; the
most significant one was the partial collapse of the inner terrace
within the northwestern pit of the Bocca Nuova. Lithic blocks that
had created impact craters were noted on the southwestern rim of that
crater; these may have been ejected by a (presumably phreatic) explosion
which was seismically recorded on 6 May. Seismicity since then has
been at low levels.
Extensive field observations of the eruptive vents, cones and lava
flows of the July-August 2001 eruption were made on 29 and 30 May.
Many of these features are now accessible via a network of well-established
footpaths and thus have lost some of their pristine character. Yet
they show a multitude of geologically interesting details, such as
small vents which at depth are connected by fissures (as in the case
of the small cone at 2700 m elevation), and beautiful lava tubes and
channels (at the vents at 2900 m elevation). Still, the devastation
caused by the activity of the large crater at 2570 m elevation (which
has been variously named "Montagnola 2", "Cono del
laghetto" and "Monte del Lago"; it has now been named
"Monte Tazieff") during its week-long magmatic activity
is evident as if it happened yesterday. The uppermost ski lift, which
connected the ruin of the "Piccolo Rifugio" (buried under
lava in late July 2001) and the Montagnola, bears numerous signs of
the destructive power of the bombardment of huge bombs to which it
was subjected.
The arrival station of the cable car on the western base of the Montagnola,
which was set ablaze by a small branch of lava on 30 July, remained
standing but its inside is a scene of utter devastation. Lava entered
into the building in various places but stopped immediately thereafter,
leaving the blazed interior to post-eruption visitors. Most haunting
is a look into the bar which hosted hundreds of people every day;
its floor is covered with more or less deformed or molten bottles
and the remainders of coffee machines. Lava burst into the bar through
three windows and stopped after oozing onto the floor, thus capturing
the moment of destruction. Among the numerous sites where eruptions
of Etna have caused damage or destruction, the cable car station and
nearby ski lift are surely the most impressive. To this is added a
kind of ironic touch, since the cable car and its arrival station
had just been renovated (a solarium had been constructed in the station)
and should have been reopened in late July 2001 - and the destructive
lava flow just touched the station, enough to burn it, but it did
not submerge it.
Meanwhile, plans are being made for the rebuilding of the destroyed
portions of the cable car, and work has begun in earnest for a major
renovation of the Torre del Filosofo mountain hut, which stands at
2900 m elevation, only 1 km from the Southeast Crater. Whether this
is a wise initiative will be seen in the future, for the Southeast
Crater will surely become active again in the future. For the moment,
Etna is continuing its unquiet slumber, and nearly 10 months have
passed since glowing lava was last seen at this volcano...
The July-August 2001 eruption and its precursors
(the spectacular paroxysmal eruptive episodes at the Southeast Crater
in June-July 2001) are featured on many web pages that contain additional
information, highly spectacular images, and video clips. These will
hopefully make up for the lack of photos on this page (I will post
them as soon as I have my office computer back to working fully)
The July-August 2001 eruption
- a special page on this web site, with an in-depth analysis of the
events and related public reactions, mass media coverage, eruptive
products, morphological changes, and a discussion of the recent paper
in "Nature" about the changing behavior of Etna. Includes
a map and press photos
View a streaming video clip with
Boris Behncke interviewed by Dana Friesen of NBC channel on 2 August
2001 (courtesy of MSNBC). Windows Media Player is needed
The most instructive web page
on the 2001 eruption so far (but in Italian only), created by Lisetta
Giacomelli and Roberto Scandone
The "official" Etna
2001 eruption web site at the Catania section of the National Institute
of Geophysics and Volcanology (INGV), contains a preliminary map of
the lava flows
Photos of the eruption at the
Roma section of the National Institute of Geophysics and Volcanology
(INGV)
Etna eruption 2001: a page produced
by the GNV (National Group for Volcanology) and hosted by Vulcanoesplorazioni.com,
with photos, maps and movie clips
"Emergenza Etna" -
the Etna emergency, presented by the Italian Department of Civil Protection
(includes simulations of the lava flows)
www.vulcanoetna.com, a splendid web site maintained by
Andrea Fiore, has impressive photos and videos of the eruption.
Watch how this site will develop in the near future!
Charles Rivière's Etna
home page, with frequent updates, photos, video clips: Rivière
was at Etna almost continuously during the 2001 eruption
Davide Corsaro's (of the Hotel
Corsaro) "Etna FAQ", a nice and entertaining resource with
many references to this Etna News page (grazie Davide!)
Tom Pfeiffer (University of Arhus,
Denmark) has stunning photos of:
the precursory activity at the SE Crater in the spring of 2001 and
of the July-August 2001 eruption (scroll down to "Etna photos")
Alain Catté (Association Volcanologique
Européenne) is currently working on a page on the 2001 eruption (we
went together to see the incredibly spectacular activity at the "Monte
del Lago" (also called "cono del laghetto") one evening
during the eruption)
André Laurenti (also of the Association Volcanologique
Européenne) came with the same excursion as Alain Catté
and has made his impressions and photos available in the "112-911
Magazine"
Thorsten Boeckel's web site (Germany) contains various
pages with photos and video clips of the SE Crater activity in the
spring of 2001 and of the July-August 2001 eruption
www.vulkane.net, a German homepage about volcanoes made
by my former colleagues (at the University of Bochum) Marc Szeglat
and Daniela Szcze
Jean Louis Piette from Belgium, who visits Etna every year,
and who always has something good to drink when we meet on the volcano,
presents his impressions of the July-August 2001 eruption
Alain Melchior, also from Belgium and partner in crime
of Jean-Louis Piette, has set up his Etna 2001 page, with nice 3D
animations and digital elevation models of Etna and photos, video
clips and other items are planned to appear on this site soon
Eurimage has spectacular satellite (Landsat, ERS) views
of the July-August 2001 eruption
Photos taken during the eruption on 20 July 2001 at www.sicilian.net
A brief summary of the 2001 eruption (in Spanish), with
a few photos (the second one shows the 4 September 1999 lava fountain
at the Voragine, the third and seventh show the Piano del Lago cone,
and the other photos are of the vents at 2950 m elevation), from the
Instituto Andaluz de Geofísica (University of Granada, Spain)
"Etna 2000" is an Italian home page made by Simone
Genovese, with general information on Etna, and has a special section
on the 2001 eruption with photos and video clips
A small selection of photos of the 2001 eruption (mainly
of the lava flow from the vents at 2100 m elevation), by Giovanni
Grasso and Antonio Guarnera (at Acitrezza On-line)
Photos (2 galleries) of the 2001 eruption (including a
spectacular aerial view) by Alexander Gerst (in German)
Photos and reports on a field trip with OUGS-ME (Open University
Geological Society - Mainland Europe) in May 2001, with a visit to
the erupting SE Crater
A brief report and nice photos of two paroxsms at the SE
Crater (22 and 24 June 2001), from André Laurenti (112-911
Magazine)
The Catania-based newspaper "La Sicilia" has
published numerous articles on the eruption. Here is a page dedicated
to the eruption, with photos, video clips and links