tagged w/ Supervolcano
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Supervolcanoes are volcanic explosion so great to have dramatic consequences on the life of the planet. Most of these huge eruptions have occurred in the distant past and therefore were only discovered them by the examination of geological strata. An ancient supervolcano first unknown has just been detected in Italy, in Valsesia, Piedmont.Supervolcanoes are volcanic explosion so great to have dramatic consequences on the... more
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Hundreds of earthquakes rippled through Yellowstone National Park, Wyoming, in late December and early January, prompting fears that the shaking might trigger dangerous steam explosions.
Magma and steam permeate the rock beneath Yellowstone, and the motion of these fluids is thought to be responsible for the thousands of small earthquakes recorded in and around the park each year.
Crater evidence - Yellowstone, which sits atop a supervolcano, is pockmarked with craters thought to have been produced this way, and geologists estimate an explosion big enough to make a 100-metre crater happens there about every 200 years.
At the time of writing, though, the swarm was subsiding with no reports of such an event. "It hasn't stopped, but it has reduced markedly in the last couple of days," said Robert Smith of the University of Utah on Monday.
There are no signs of any on the way, either, said Smith, who monitors Yellowstone's geologic activity.
The quakes appear to be concentrated along a fault beneath the park. Further analysis should reveal whether they were triggered by forces associated with the fault, activity of hot fluids beneath the surface, or some other cause, he says.Hundreds of earthquakes rippled through Yellowstone National Park, Wyoming, in late... more
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Yellowstone has recently been rocked with unusual amounts of small quakes. For the third straight day Yellowstone park was jostled with little tremors which totaled to about more than 250 tremors altogether.
Scientists are baffled with these recent events, and even accepted this phenomenon as highly unusual.
The highest recorded earthquake was of a 3.8 magnitude.Yellowstone has recently been rocked with unusual amounts of small quakes. For the... more
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A devastating collision with another planet, a supervolcano that killed 60 per cent of the world's population and a 25million-year Ice Age. Our world has faced many catastrophes... so what's coming next?
Earth has been subjected to some apocalyptic events in its 4.5billion-year history. Volcanoes, meteors, fire and ice have almost obliterated all life and threatened the very existence of the planet itself.
Now, a new Channel 4 programme, Catastrophe, looks at the science behind the destruction and reveals the threat our planet could still be under.
‘What I find extraordinary about this series is that it’s all new stuff,’ says presenter Tony Robinson. ‘For instance, it wasn’t until we started looking at the rocks brought back from the Apollo moon landings that we realised that the Earth and the moon were actually made from the same fabric.A devastating collision with another planet, a supervolcano that killed 60 per cent of... more
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