Australias Volcano
SYDNEY, June 12, 2011 (AFP) - Ash from Chile's volcanic eruptions prompted Australian airline Qantas to ground some domestic services and some flights to New Zealand on Sunday, after plumes drifted across the Pacific.
Strong winds have carried the ash clouds some 9,400 kilometres (5,800 miles) across the Pacific to New Zealand since Chile’s Puyehue volcano erupted more than a week ago, and they are now moving towards Australia.
Qantas cancelled all flights in and out of the southeastern island of Tasmania and services from Sydney and Melbourne to and from Christchurch, Queenstown and Wellington in neighbouring New Zealand, disrupting about 1,500 passengers.
An earlier flight to Auckland had gone ahead, Qantas said, but services to this city were also at risk of being suspended. The airline was expected to make another announcement later on Sunday.
“We will be providing an update throughout the day to different passengers travelling tomorrow but at this stage it is only flights during today that have been impacted,” Qantas spokeswoman Olivia Wirth told ABC Radio.
“We believe that it’s absolutely the right thing to ground these services. We will put them back up in the air as soon as possible but it’s a safety first approach for our customers.”
Qantas offshoot Jetstar has also grounded flights due to leave Sunday for Tasmania and New Zealand, as well as flights within New Zealand, but rivals Virgin Australia and Air New Zealand are flying as normal and monitoring developments.
Air New Zealand has said it will adjust flight routes and altitudes to avoid the plumes which New Zealand’s Civil Aviation Authority has warned will be at 20,000-30,000 feet, the cruising altitude for both jet and turboprop aircraft.
The authority said Saturday New Zealand airspace might be affected for at least a week, given that the volcano was still erupting.
Air Services Australia said the cloud could affect air traffic for the next few days, and had already reached airspace in southern Tasmania and the south island of New Zealand.
The authority said it was not expected to linger over Australia for more than a day.
“Parts of the ash cloud currently have relatively high ash concentrations clearly visible using satellite techniques,” it said in a statement.
Andrew Tupper, head of Australia’s Volcanic Ash Advisory Centre, said he expected the ash cloud to move towards Australia’s east coast over the next day, although the plumes were breaking apart.
“It’s got a very strong satellite signal and it’s right up there with the big, big eruption clouds,” he said.
“It will keep going. I would suspect it will do a loop of the globe.”
Flights to and from Australia are from time to time disrupted by volcanic eruptions in the Pacific, but Tupper said this was the first time in about two decades that an ash cloud was expected to cross the continent.
“It’s pretty major,” he said.
The volcanic eruptions have already prompted the cancellation of several flights across South America.
Report By : AFP
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Mount Gambier ( Eastern South Australia ) Australia's youngest volcano. A volcano filled with water. Erupted 4,500 years ago
South-eastern Australia's long-dormant volcanic province is overdue an eruption, but the nation is completely unprepared for such an event.
So says Bernie Joyce from the University of Melbourne, who has documented the region's volcanic history over the past 5 million years. Over that time there has been an eruption roughly every 12,500 years, Joyce says – but recently, the region has been more active. "For around 20,000 years an eruption has occurred every 2000 years." The last volcano to erupt was mount Gambier, some 5500 years ago.
While a future eruption is likely to be small, "it could cause devastation to thousands of people", Joyce says. Several towns, including Colac – where 10,000 people live – lie within the danger zone, and Melbourne lies near historically active areas.
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