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AlanHo
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If you go over to La Palma, make certain that you tread lightly !

Geologists S. Day and S. Ward consider that a megatsunami could be generated during a future eruption involving the Cumbre Vieja on the volcanic ocean island of La Palma, in the Canary Islands.

In 1949, the Cumbre Vieja volcano erupted at its Duraznero, Hoyo Negro and San Juan vents. During this eruption, an earthquake with an epicentre near the village of Jedy occurred. The following day Rubio Bonelli, a local geologist, visited the summit area and discovered that a fissure about 2.5 kilometers (2 mi) long had opened on the eastern side of the summit. As a result, the western half of the Cumbre Vieja (which is the volcanically active arm of a triple-armed rift) had slipped about 2 meters (7 ft) downwards and 1 meters (3 ft) westwards towards the Atlantic Ocean[citation needed].

The Cumbre Vieja volcano is currently in a dormant stage, but will almost certainly erupt again in the future. Day and Ward hypothesize that if such an eruption causes the western flank to fail, a megatsunami will be generated.

La Palma is currently the most volcanically active island in the Canary Islands Archipelago. It is likely that several eruptions would be required before failure would occur on Cumbre Vieja.[12][13] However, the western half of the volcano has an approximate volume of 500 cubic kilometres (120 cu mi) and an estimated mass of 1,500,000,000,000 metric tons (1.7×1012 short tons) If it were to catastrophically slide into the ocean, it could generate a wave with an initial height of about 1,000 metres (3,300 ft) at the island, and a likely height of around 50 metres (164 ft) at the Caribbean and the Eastern North American seaboard when it runs ashore eight or more hours later. Tens of millions of lives would be lost as New York, Boston, Baltimore, Washington, D.C., Miami, Havana, and many other cities near the Atlantic coast are leveled. The likelihood of this happening is a matter of vigorous debate.


/>http://en.wikipedia.org/wiki/Megatsunami

The last Cumbre Vieja eruption occurred in 1971 at the southern end of the sub-aerial section without any movement

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Interesting stuff Boris. :good:

Nice one :lol:

"The likelihood of this happening is a matter of vigorous debate."

Hmmmmm............. ?

I watched a T.V. program about this a couple of years back, and thought at the time that if this 2.5km long fissure had a few sticks of explosive planted along it and detonated, this would do some extremely powerful damage, - and not only to America !

I hope they (whoever "they" are) have got this baby well secured against acts of terrorism. :blink:

AlanHo is very safety concious though. At the hotel in Newquay, Cornwall, which was about 500yards from the beach, he was extremely reluctant to remove the "blow-up - floatezee" arm bands until I had explained to him the tide charts for that particular week in Cornwall.

-

Once he arrives at his destination and gets fixed up with Wi-fi, (Always a big highlight in any vacation Alan takes. :fool: ) - He will be able to settle back, safe in the knowledge that we have his welfare at heart. :beach:

Airflight in itself these days is worrying enough without the extra stress of big pieces of rock falling into the sea for chrisesake. - Just to add to the stress airports put up big signs saying: "Terminal" :unsure:

Do have a nice worry free vacation Alan ! :D

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We can cross link at this point if we wish to some lounge conversation that is similar but nothing like that which we have been talking about. :unsure: :lol:

In an effort to keep the forum "Less Lounge Centred" Quite simply, we can by - "cross linking" - , keep people updated on the more technical facets of the forum, and maybe parts of the forum that they may have missed.

A fine example being a link that would put you not only in touch with "Dartmoor" but also "Virtualization Software"

Try the link:

*** HERE *** and start to read through the posts and links.

John. :flowers:

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AlanHo's on one of his misadventures again I take it?:rolleyes:

I tell ya, around these here parts that is considered mutiny. And punishable by whatever is deemed apropriate.

Be safe. Come back to see us when you are ready to face up to your responsibilities.

Regards,

Jobe Wankernobe

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