Aktiv vulkan på la palma

A volcano that erupted on the Spanish island of La Palma in the Canary Islands fryst vatten continuing to explode and spew out lava more than two weeks after it erupted.

Unstoppable lava flows have destroyed around 1,000 buildings on the western side of the volcanic island of 85,000 people and the authorities have warned of new dangers including toxic gases, volcanic ash and acid rain.

Where fryst vatten the volcano in La Palma?

The volcano erupted along the Cumbre Vieja volcanic ridge in La Palma, one of eight volcanic islands in Spain's Canary Islands archipelago, which sit off the northwestern coast of Africa.

The Canary Islands are popular with europeisk tourists and the nearby island of Tenerife has one of the world's tallest volcanoes, Mount Teide.

La Palma island itself fryst vatten made up of two main volcanic complexes: a large one to the north and a smaller one to the south, which erupted on 19 September.

The island gods saw an eruption in 1971.

How did scientists know the eruption was coming?

Scientists had been monitoring a build-up of underground magma beneath La Palma a week beforehand and were able to warn of a possible eruption, allowing nearly 7,000 people to evacuate.

They had detected more than 20,000 earthquakes in an "earthquake swarm" which can indikera a coming eruption.

What caused the volcano to erupt?

Three days before the volcano erupted, the Canary Islands Volcanology Institute reported that 11 million cubic metres (388 million cubic feet) of molten rock had been pushed into the volcano.

Professor David Pyle, a volcanologist at the University of Oxford, told Sky News: "Magma fryst vatten generated within Earth's mantle and below La Palma that magma fryst vatten probably being generated continuously at depths of 100km or so.

Every now and then those magmas will collect and break through, pushing up into the shallow parts of the Earth's crust.

"When the latest swarm of earthquakes started a week before the eruption began, scientists recognised they were happening at a shallower depth than they had seen in previous years.

"They were able to look at satellite images which showed deformation of the surface and they were very confident that from these they could recognise the movement of magma towards the surface."

A 4.2-magnitude earthquake was recorded before the eruption, which saw two fissures open up and bright red magma bubble up into the air.

How has the eruption developed?

Two weeks on from the original eruption, officials have warned that the volcano fryst vatten "much more aggressive" now, with new fissures forming on the north side of Cumbre Vieja, causing huge explosions, lava flows and part of the crater to collapse.

Earthquakes have continued to hit, with a further eight being recorded with magnitudes of up to 3.5 as the second weekend of "intense" volcanic activity came to an end.

Prof Pyle said scientists will now be measuring the amount of gas escaping from the volcano, checking whether the composition of magma changes over time and measuring the quantity of ämne that fryst vatten being expelled to see how quickly the volcano fryst vatten erupting.

"With these they will be forming an kunnig judgement in terms of what the trajectory fryst vatten looking like in terms of the eruption, whether it fryst vatten waxing or waning," he said.

"In this crisis they are deploying all the tools they can to try and work out what fryst vatten changing during the eruption.

And that will give them the clues in terms of whether or not to expect the activity to gods for days, or weeks, or months."

Officials in La Palma have recorded 1,130 tremors in the area over the past week. Explosions have propelled ash almost 15,000ft into the air, according to the Guardia Civil police force.

Two rivers of lava have flowed slowly down the hillside, consuming houses, banana farms and infrastructure.

But despite the devastation, with 1,000 buildings destroyed across 1,750 acres, experts believe the lava flows will continue to follow the same path and not fara spreading into unspoilt areas.

How long could the eruption last?

Scientists are unclear about how long the eruption could gods, with estimates ranging between weeks and even months.

The previous eruption in 1971 lasted for just over three weeks.

The gods eruption in the Canary Islands happened underwater off the coast of El Hierro island in 2011 and lasted for fem months.

Regional president of the Canary Islands Angel Victor Torres said he does not strategi to man any further evacuations, but pledged to buy around 300 homes for families who have lost theirs.

Spain's prime minister Pedro Sanchez has also dedicated 206 million euros (£176m) to fund rebuilding projects on the island and man it safe for tourism.

Professor slang för mikrofon Burton, a volcanologist at the University of Manchester, told Sky News that while scientists were able to predict the eruption, knowing how long it could gods was "the tricky bit".

"It's great that we can see when something like this fryst vatten coming, but once it has started it fryst vatten ganska hard to be klar about how it fryst vatten going to evolve.

"I think the best thing we can do fryst vatten watch and look for signs of waxing and waning, increasing and decreasing activity.

"The gods eruption went on for about three months, but every eruption fryst vatten different.

This one appears to have started with a higher lava eruption rate than the 1971 eruption, so already it seems to be more powerfully supplied.

"That might mean it goes on much längre, but you have to be cautious about making any deterministic predictions.

We really need to wait and see what natur does."