Itoero Posted December 24, 2018 Share Posted December 24, 2018 Is there a risk for megatsunamis (they occur when a very large amount of material (like ice) suddenly falls into water) due to the melting of ice on Greenland and Antarctica? I immediately think about the large volcanic area of West-Antarctica. And is there a good chance La Palma will cause a megatsunami? Link to comment Share on other sites More sharing options...
HB of CJ Posted December 24, 2018 Share Posted December 24, 2018 If and when the Antarctic Ross ice sheet "slips" into the ocean the tides will rise a few to several meters world wide. The tide will not recede. It probably would take a couple to three days world wide. If La Palma happens full tilt, (or drop) then the potential is for a very large tsunami occurring. A Megatsunami? Not likely put possible. Lots of discussion on both. Link to comment Share on other sites More sharing options...
Nod2003 Posted February 24, 2019 Share Posted February 24, 2019 The ice would have to fall off solid ground to have any kind of global impact. Ice calving off a floating ice sheet only causes local effects as the mass of the ice is already accounted for by the ocean. Link to comment Share on other sites More sharing options...
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