Posted on 08/09/2004 8:34:11 PM PDT by FormerACLUmember
A collapsing volcano in the Atlantic could unleash a giant wave of water that would swamp the Caribbean and much of the eastern seaboard of the United States, a scientist has claimed.
Dr Simon Day, of the Benfield Greig Hazard Research Centre at University College London, UK, believes one flank of the Cumbre Vieja volcano on the island of La Palma, in the Canaries archipelago, is unstable and could plunge into the ocean.
If I was living in Miami or New York and I heard that the Cumbre Vieja was erupting, I would keep a very close eye on the news.
Swiss researchers who have modelled the landslide say half a trillion tonnes of rock falling into the water all at once would create a wave 650 metres high (2,130 feet) that would spread out and travel across the Atlantic at high speed.
The wall of water would weaken as it crossed the ocean, but would still be 40-50 metres (130-160 feet) high by the time it hit land. The surge would create havoc in North America as much as 20 kilometres (12 miles) inland.
Dr Day told BBC Science's Horizon programme: "This event would be so huge that it would affect not only the people on the island but people way over on the other side of the Atlantic Ocean - people who've never heard of La Palma."
His latest work on the subject has been published in the Journal of Volcanology and Geothermal Research.
On the back of this work, the Geological Society of London is to write to the UK science minister, Lord Sainsbury, to make him aware of the dangers posed by so-called mega-tsunami in the Atlantic.
The society hopes he will take the issue as seriously as he has the threat from asteroid strikes.
Scientists have known of the destructive power of tsunami - huge tidal waves - for many centuries. As recently as 1998, over 2,000 people were killed by a large wave hitting the coast of Papua New Guinea.
This was caused by an offshore earthquake. But researchers believe far bigger phenomena can be created by giant landslides.
The largest wave in recorded history, witnessed in Alaska in 1958, was caused by the collapse of a towering cliff at Letuya Bay. The resulting wave was higher than any skyscraper on Earth and gouged out soil and trees to a height of 500 metres (1,640) feet) above sea level.
Geological studies have found evidence of giant landslides elsewhere in the world such as Hawaii, the Cape Verde Islands and Réunion in the Indian Ocean.
Dr Day has identified dozens of volcanic vents in the Cumbre Vieja volcano that have been formed by successive eruptions over the past 100,000 years.
He thinks water trapped between dykes of impermeable rock could create pressures that eventually lead to the western flank of the mountain falling away during some future eruption.
Hermann Fritz, of the Swiss Federal Institute of Technology, which has equipment to model waves created by landslides, said: "If the Cumbre Vieja were to collapse as one single block, it would lead to a giant mega-tsunami with an initial wave height of 650 metres.
"It would have a wavelength of 30 to 40 kilometres (18 to 25 miles) travelling westwards across the Atlantic at speeds up to 720 km/h (450 mph) towards America."
But researchers caution that such a catastrophe may not occur for many decades.
"There could be five more summit eruptions of the Cumbre Vieja before the western flank collapses," said Professor Bill McGuire, of the Benfield Greig Hazard Research Centre.
"There could be 10 or there could be 20 - we simply don't know. But put it this way: if I was living in Miami or New York and I heard that the Cumbre Vieja was erupting, I would keep a very close eye on the news."
Did Uncle teddy drive his fat ass off another bridge?
Well heck, I saw the answer it in the movies. You just get Harry Stamper and AJ and his buddies Bear, etc., to drill a really big hole, put in a nuke, and tadaaaaaa! They save the world. Hey it worked in outerspace - should work under water....
Hmm, is this the same geologist who was on that cable TV special a year or so ago, clambering around the side of a volcano, detailing how the entire western side of that island would eventually collapse? It sounded plausible, even at two am. Program was followed by the Giant Tsunami Ends the World as We Know It special. Scared me half to death. It's one thing after another. Terrorists or tsunamis or collapsing volcanoes and asteroids. Or, horror of horrors...Dorkman and Shoveit! Woman in the WH. We've had it.
I have also read that the estimated population of hominids around the end of the last ice age may have been below 10,000, possibly close to 6,000. That may be another reason there isn't much evidence of major works. The "light" nearly went out.
You were the first to use the word asteroid in this thread ... but that word is the only relevant element to understand the timing of this story - as it was explained here, yesterday :¨
http://www.freerepublic.com/focus/f-news/1188041/posts?q=1&&page=71#70
This is just great! I not only have to worry about surviving a terrorist attack during the Republican convention but NOW my month at the beach in October!
Oh well, I'll worry about that tomorrow.........
LOL
It's no threat. It's the right thing to do. Vote Bush! Many will.
That "estimated number of hominids" is based on the evidence observed. I'm suggesting the evidence was, for the most part, destroyed!
Sort of! But....I also get the heebee jeebee's thinking about getting eaten alive by fire ants and killer bees. Seriously, being at the beach and a big wall of water approaching - that's my worst nightmare.
It's a joke.
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