Extract of a private conversation of July 17th, 1975 (31st contact):
Your question concerns the Cumbre Vieja Volcano on the Island of La Palma.
The western part of the volcano, the west flank, as you correctly say, is extremely unstable and can slip into the Atlantic in the coming time and cause an enormous tsunami.
But the east side of the volcano is also at risk, especially if a strong volcanic eruption occurs, as is also the case with the western flank.
The reason for that lies in the fact that the volcanic mountain is internally very porous and so saturated with water that, with a strong eruption, the water can suddenly vaporise and rip the volcano apart due to a steam explosion.
I do not want to talk of a certain time in relation to when that can happen or will happen, as it does not lie in my authority to name dates about that, because this belongs in the domain of terrestrial scientists and governments who, in regard to necessary measures, have to make determinations which I am not permitted to influence.
Besides, the entire thing can be prevented if the correct measures are taken which consist of a systematic, "quiet" dismantling of the part of the volcano, which is at risk.
And if it is not dealt with in this manner then a catastrophe is unavoidable if it does not naturally occur that, by and by, only a small part of the side of the volcano, which is at risk slips away.
That will certainly happen again and again in the coming time, but to what extent the danger is thereby lessened is questionable.
But the fact of the matter now is that an enormous part of the west flank of the Cumbre Vieja Volcano can slip, plunge into the sea and, within a few minutes, cause a gigantic wave of water, respectively, a giant tsunami, which can reach a height of up to 1,500 or even up to 2,500 meters or even more, and indeed according to the mass and speed of the falling material as it slips from the flank of the volcano.
As a result of this - if it really happens, which is not yet established - the surrounding Canary Islands would be flooded with 50 to 150 meter high waves and everything there would be destroyed, after which the gigantic waves would also reach Africa.
If it really happens in the aforementioned manner then the giant wave would spread out across the Atlantic in a semi-circular form and indeed in several waves of various sizes and would speed through the ocean at 1,000 kilometres an hour, to - after around eight hours - reach the coast of the USA where it would cause the water of the Atlantic to rise up to a height of 100 meters and more, depending on the shape of the coastline in each place, and bury everything on the solid land under itself.
The effects of the giant tsunami would also destroy the coasts and much in the interior of South America.
England would also be effected by it as also would Greenland and the coastal areas of all of Western Europe.
This is the worst case scenario, if the entirety of the western flank of the volcano slipped all at once and plunged into the sea.
If, however, only small parts of the side of the mountain loosen and plunge into the sea, the results would naturally be correspondingly lessened.
Source
Corroborated
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