Etna volcano updates and eruption news:
Etna volcano (Italy): new paroxysm on 19 July 2011 & photos
di, 19 jul 2011, 06:2106:21 AM |
A new powerful paroxysm occurred on Etna volcano from the SE crater during the second half of the night 18-19 July. Tom who was guiding a group of VolcanoDiscovery were able to witness the eruption: during the afternoon of 18 July, we visited the area around the new cone at the SE flank of the SE crater (now often called the "New SE crater", or the former "pit") and noticed many radial fractures in the ground SE of the cone, but only weak ash emissions suggesting that magma had dropped deep within the conduit. Around midnight, we noticed that strombolian activity had resumed around midnight and tremor was rapidly rising, and decided to walk to a viewpoint on the rim of the Valle del Bove, where we arrived at around 2:30am. At that time, strombolian activity had apparently just turned into fountaining (other observers who had been on the spot half an hour earlier did only report strombolian activity and thought it was decreasing...). The fountains quickly increased to ca. 500 m height, and a lava flow had started to advance a few 100 meters. At the peak of the eruption at around 3am, the fountains pulsated between an estimated 500-800 m height, with large incandescent bombs visible more than 1 km above the vent and landing behind SE crater. The lava flow advanced with 3 main branches onto the steeper parts of the wall of the Valle del Bove. The fountain-fed ash plume drifted east towards Giarre.
Eruption of Etna on 19 July 2011
The fountains gradually decreased by around 4am and the activity turned into exploding giant lava bubbles, detonating with loud noise, and throwing large bombs up to 1 km in spherical directions above the crater. This activity slowly waned until dawn.
While the fountains lasted, the crater wall was completely covered by incandescent lava, but later on, when this cover became less dense, an interesting feature became visible: A lava-dome-like incandescent 10-20 m wide and ca. 5 m high rectangular area half way up on the S side of the crater cone, which was feeding a small lava flow of cascading lava rocks could be seen; it remained active until dawn.
A "quick and dirty" set of photos is found here.
Sat, 9 Jul 2011, 23:35
A powerful paroxysm occurred at the vent SE of the SE crater of Etna volcano during the afternoon of July 9, 2011, and was observed close-up by Tom Pfeiffer. The eruption started with approximately 8 hours of slowly increasing strombolian activity, accompanied by increasing tremor since the morning of 9 July. Towards 14h30 h local time, the intensity rapidly increased into high lava fountaining lasting for ca. 1.5-2 hrs, generating a tall tephra column and producing heavy ash fall S-SE of the summit area. The eruption waned at around 17h00 and stopped around 18h00. A large lava flow with several branches went down into the Valle del Bove. ... Lees alle
Sat, 9 Jul 2011, 14:28
You can watch the developing activity on Etna volcano over the last two hours. Increasing seismic activity and ash eruptions to Strombolian eruptions... Tom Pfeiffer is still near the eruption. ... Lees alle
Thu, 12 May 2011, 17:17
Due to recent activity of Etna volcano the airport of Catania remains closed until 13 May 6:00. Flights are diverted to Palermo. There is a free transfer to Catania by bus. ... Lees alle
Mon, 11 Apr 2011, 06:26
On 10 April 2011, the activity which had started with weak strombolian activity from the collapse carter on the east foot of the SE crater evolved inot a new, violent and spectacular eruption (paroxysm), including lava fountains, 3 km long lava flows and a tall column of ash. This was the 3rd such event in 2011. Lees alle
Sat, 9 Apr 2011, 21:36
Our mountain guide reports mild strombolian activity and small lava overflows from the vent of the SE crater. ... Lees alle