Check out this photos which won prices also in NATIONAL GEOGRAPHIC.
Unfortunately there are not a lot of helpful homepages, organizations or a ministry in Argentina which supplies us with information about volcanoes. On top nowbody really knows what is going to happen. The Russians fly to Mars but we have still no clue when or which Volcano is going to go off. So the little information there is we have to get mostly from our neighbour, Chile. Here is a good homepage if you are interested in updates on Volcanoes. On the other hand it is also true that most active volcanoes are in Chile and not in Argentina. We do not have lots of active volcanoes but get the ashes from Chile!
On this picture you can see the ash cloud after the eruption of the volcano Puyehue, June 4th 2011. At 15:15 local time OVDAS reported an explosion and a 5 kilometres wide ash-and-gas plume that rose to an altitude of 10 kilometres above sea level. The plume drifted south at 5 kilometres altitude, and southeast and east at 10 kilometres altitude, in Bariloche the sky was pitch black dark at that time. The alert level was raised to 6, red. The ash cloud was actually not from the Puyehue but from the Cordon Caulle fissure. An estimated one hundred million tons of ash, sand and pumice were ejected – requiring power equivalent to 70 atomic bombs! At the end the ash cloud made it a couple of times around the southern hemisphere closing down airports. Surprisingly the ash cloud had to got once around the world before actually arriving in Chile and affect airports there.
31 employees of the Hotel Panamericano in San Carlos de Bariloche received a registered letter containing a dismissal by employer. The funny thing is that the Hotel Panamericano also owns the Casino connected to the Hotel. The casino made a total revenue of a couple of million US dollars last year. Hard to understand that they have to cut out 31 employees with an average cost of wage of 6000 Pesos per month. Mr. Zunego of course blames the government for not receiving help from BA or the state of Rio Negro and is right there. Unfortunately it is always the weakest part of the chain which has to suffer and pay the bill.
Chilean authorities have evacuated people living near the Hudson Volcano after it exploded and spewed a steam cloud half a mile into the air. Chilean authorities were still evacuating residents living near a volcano in the country’s far south after a volcano spewed a jet of steam 3,200 feet into the air and seismic activity triggered an avalanche.
Government officials flew over the Hudson volcano, which lies around 1,000 miles south of the Chilean capital Santiago.
More than 100 residents from the sparsely populated area have been evacuated as a precaution as the state emergency office ONEMI increased the volcanic alert status to Level 5 in preparation for an imminent major eruption.
The Hudson volcano last erupted in 1991, melting part of the glacier that sits on the crater and triggering mud flows.
The recent activity comes in the wake of a string of eruptions at other volcanoes in Chile.
In June, a volcano in the Puyehue-Cordon Caulle volcanic chain, about 575 miles south of Santiago, erupted after being dormant for decades.
It belched an ash cloud miles high that blew over the Andes and grounded planes as far away as Australia and New Zealand.
Chile’s Chaiten volcano also erupted spectacularly in 2008 for the first time in thousands of years, spewing molten rock and a vast cloud of ash that reached the stratosphere.
Chile’s chain of about 2,000 volcanoes is the world’s second largest after that of Indonesia. Some 50 to 60 are on record as having erupted, and 500 are potentially active.
Here some information of what WIKIPEDIA lets us know about VOLCANOS.