Stalins Organ Posted October 11, 2009 Share Posted October 11, 2009 500 years ago New Zealand was hit by a fairly big wave & it's interesting to see how much it affected a stone age society without quite managing to wipe it out. In hte present day we can see that the quality of crafted items fell, presumably due to death of many skilled workers, and family-trees (whakapapa) often now only go back 15 generations or so again persumably because the holders of the oral history were killed. 0 Quote Link to comment Share on other sites More sharing options...
Other Means Posted October 11, 2009 Share Posted October 11, 2009 Interesting. Excuse the vagueness but I came in half way though a program once. It was something about a range of low hills in the USA. If you see ripples in the sand of a beach the height of the ripple, like a cm on a normal beach, is proportional to the high of the wave, maybe 1.5m. This set of hills was about 20m crest to foot and had been caused by the same action. Apparently an ancient inland sea had drained out there, leaving the hills. Must have been a hell of a sight. 3km high wave... 0 Quote Link to comment Share on other sites More sharing options...
MarcyOne Posted October 12, 2009 Share Posted October 12, 2009 A volcano avalanche in Sicily 8,000 years ago triggered a devastating tsunami taller than a 10-story building that spread across the entire Mediterranean Sea, slamming into the shores of three continents in only a few hours. "Should the Neolithic Etna tsunami have occurred today, the impact is tremendous because the Eastern Mediterranean coasts are very inhabited ones," Pereschi said. 0 Quote Link to comment Share on other sites More sharing options...
dieseltaylor Posted October 12, 2009 Share Posted October 12, 2009 I love geography and history. The articles first paragraph rather overstates the case a tad as the tsunami would have traveled eastwards from Sicily. So anything due West , and West would have awaited the backwash some considerable time later. Three continents! Europe in about 10 seconds, Africa a couple of hours and ... er that bit of coast on the Arabian sub-continent. If Sicily is assumed to be part of Europe then counting itself is also bizarre. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted October 12, 2009 Share Posted October 12, 2009 There is a large area of eastern Washington that was scoured by the sudden release of a huge lake in, IIRC, the Idaho-Montana area at the end of the ice age when the ice dam that was holding it back gave way. Talk about a flash flood! Michael 0 Quote Link to comment Share on other sites More sharing options...
dieseltaylor Posted October 12, 2009 Share Posted October 12, 2009 A site with some detsails on the NA ice lakes and drainage -whwew! http://www.icr.org/article/3943/ And for tsunami fans: Washington, Feb 4 2009(ANI): In a new research, scientists have determined that seven huge irregular boulders in an island in Tonga were deposited by a prehistoric mega tsunami thousands of years ago. The research was done by Cliff Frohlich and her colleagues from the Institute for Geophysics, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, in the US. The hugely puzzling coral limestone boulders sit 100200 meters from the shoreline on the island of Tongatapu in the southwest Pacific. In 2007, Frohlich studied these boulders, which have dimensions as large as 9 meters and weigh up to 1600 tons, and concluded that the boulders originated at the shoreline about 120,000 years ago and have since been displaced by a prehistoric tsunami. Frohlich and her team analyzed undersea volcanic calderas in the Tofua arc west of Tongatapu and local slump features just offshore from the boulders and concluded that a caldera collapse was the likely cause of a tsunami large enough to move the boulders. A systematic census and analysis of erratic boulders and other tsunamigenic features along shorelines elsewhere in the world may provide a means for extending the historic record and thus more accurately assessing tsunami hazard. (ANI) Read more: http://www.thaindian.com/newsportal/health/prehistoric-mega-tsunami-deposited-giant-boulders-in-tonga_100150954.html#ixzz0TiQ8MDNh 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted October 12, 2009 Share Posted October 12, 2009 Thanks for that link DT. This is the event I had in mind: The ancient breached ice dam at Sandpoint, Idaho, that released Lake Missoula from Montana--Ice Age glaciers flowing southward in northern Idaho blocked the Clark Fork River, impounding about 500 cubic miles of water and forming a lake of 900 feet in depth over Missoula, Montana. The Lake Missoula flood began when the ice dam failed. The outburst flood destroyed the ice dam, eroding and scarring the 16,000-square-mile Channeled Scabland of eastern Washington. Fifty cubic miles of sediment were moved. Grand Coulee is the most prominent erosional feature (the 50-mile-long trench is one to six miles wide and averages 900 feet deep). Nova did a show about this a few years back that was pretty interesting. Michael 0 Quote Link to comment Share on other sites More sharing options...
Other Means Posted October 12, 2009 Share Posted October 12, 2009 A site with some detsails on the NA ice lakes and drainage -whwew! http://www.icr.org/article/3943/ Good link but what an odd place to find it. Institute for creation research showing geological changes. Seems odd. 0 Quote Link to comment Share on other sites More sharing options...
bitchen frizzy Posted October 12, 2009 Share Posted October 12, 2009 Good link but what an odd place to find it. Institute for creation research showing geological changes. Seems odd. Actually, creationists use catastrophic flooding events in relatively recent geologic history as examples of how all erosion features on the earth's surface are due to recent events, not gradual processes that happen over millions of years. They explain the Grand Canyon as the result of a catastrophic flood, for instance. They HAVE to offer an explanation for how erosion-formed geologic features came to be, so they go with catastrophic flooding for all, and science provides enough valid examples to make it seem plausible. 0 Quote Link to comment Share on other sites More sharing options...
Sergei Posted October 12, 2009 Share Posted October 12, 2009 Tsunami is just God's way of telling pagans and dinosaurs "screw you". 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted October 12, 2009 Share Posted October 12, 2009 It's God's way of disposing of a contaminated culture medium. Michael 0 Quote Link to comment Share on other sites More sharing options...
mike_the_wino Posted October 12, 2009 Share Posted October 12, 2009 I am not standing near Emrys. Sounds like a tsunami is due to hit him any time now. 0 Quote Link to comment Share on other sites More sharing options...
Other Means Posted October 12, 2009 Share Posted October 12, 2009 Actually, creationists use catastrophic flooding events in relatively recent geologic history as examples of how all erosion features on the earth's surface are due to recent events, not gradual processes that happen over millions of years. They explain the Grand Canyon as the result of a catastrophic flood, for instance. They HAVE to offer an explanation for how erosion-formed geologic features came to be, so they go with catastrophic flooding for all, and science provides enough valid examples to make it seem plausible. That'll explain the Darwin comment - cheers. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted October 13, 2009 Share Posted October 13, 2009 I am not standing near Emrys. Thank you. The property values in my neighborhood just skyrocketed. This could put an end to the recession all by itself. Michael 0 Quote Link to comment Share on other sites More sharing options...
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