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To: miraje who wrote (211018)	7/7/2007 1:06:22 AM
From: KLP	Respond to of 794043

Hopefully, NZ has alternative places to go for the people who might escape the volcano next time it decides to erupt! At least Yellowstone doesn't have a big city sitting on top of it...but LA and SFO sure do, and if Mt Rainier ever erupts in a huge way, Seattle might feel the brunt of that too. Although Rainier is about 60-70 miles from Seattle.

To: miraje who wrote (211018)	7/7/2007 1:52:05 AM
From: Maurice Winn	Respond to of 794043

NZ is one of the most tectonically dramatic places anywhere. There is a rift valley running from White Island [an active volcano] through to Mount Egmont with the big split being between Taupo and Rotorua, a few kilometres wide. The subduction of the Pacific Ocean oceanic plate is on the east coast, feeding the volcanoes. There is a transcurrent fault along the South Island and into the North Island including pushing up of the Southern Alps. Plus it's twisting around Wellington region. There are ophiolites up north which is ocean crust dumped up on top of the land. I can't think of a more convoluted place [geologically]. The USA has the San Andreas fault and big volcanic action, but lacks the twist and rift valley. Maybe there's something similar around Sumatra or that region. Anyway, there's a lot going on for a populated area. Living INSIDE the rim of an active volcano, on the edge of the crater lake, is insane. Bacteria would do that, and trees, because they can't think. But people would, you would think, notice that it's kind of eruptive!! Yes, Auckland is also inside a volcanic area, but that are scoria volcanoes which are slow erupting and fun to watch. There are the phreatic volcanoes around the edge of the harbours, which suddenly go bang, but they only affect a kilometre or two immediately around them. They won't get me. That link you gave is a bit silly in part - there is no way that the human population dropped to 10,000 due to eruption. That would have involved a mass species extinction and there wasn't one 70,000 years ago: < But the really huge ones were long before those. The largest since the rise of modern humans, Homo sapiens, is the great eruption of Toba, in Sumatra, about 71,000 years ago. It produced some 2800 cubic kilometers of ash and may have reduced the world's human population to only 10,000 people> No chance. Mqurice