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To: Gib Bogle who wrote (72645)	2/27/2010 8:45:20 PM
From: Maurice Winn	1 Recommendation Read Replies (1) \| Respond to of 74559

I had assumed all the iron sand came from erosion of sub-sea old volcanoes in the Tasman sea [with the hot spots gradually migrating east, now under east Auckland [Rangitoto vicinity I suppose]. But perhaps a lot of it goes down the Wanganui River from Taupo and up the coast. It seems an extraordinary waste of effort and talent to be top in engineering then go and run noisy restaurants in New York. [I asked Google]. < In NZ my only coastal projects have been in modelling flows and transport (sediment and effluent) in the Auckland harbours.> Having grown up literally in the Manukau Harbour, I have a fondness for it. 55 years ago it was seething with marine life. 20 years ago it was totally dead, not a single worm or even bits of algae. There were presumably anaerobic bacteria festering in the ooze. Now it is coming back to life, rapidly - I have made regular visits to the mud to see how it was progressing. My 86 year old Uncle has been in recent weeks doing battle with the foreshore at the start of the old bridge causeway, clearing it of debris and making a little reclamation with some flowers and stuff. He says [and I agree] that the whole area to west of the causeway should be reclaimed for recreation purposes. The mangroves should all be removed from the harbour. A barge, hoist and tree mulcher and community services volunteers wanting a day out of gaol or off the dole could do the work. I calculated the odds of Taupo erupting in any one lifetime as being about one in ten, which is quite good odds of going up in a bang. That's quite a risk profile for a city. And, of course, the longer the time before it erupts, those odds get worse because the pressure down below keeps increasing. To avoid Taupo eruptions, stay clear when it's spring tide time, after a long dry summer, when a low pressure zone arrives. Mqurice

To: Gib Bogle who wrote (72645)	3/1/2010 11:45:50 PM
From: Snowshoe	Read Replies (1) \| Respond to of 74559

Chile was hit hard by tsunamis soon after the quake. The smart thing now is to rebuild on safer ground... Tsunami sweeps away entire towns on Chilean coast news.yahoo.com In the village of Dichato, teenagers drinking on the beach were the first to shout the warning when they saw a horseshoe-shaped bay empty about an hour after the quake. They ran through the streets, screaming. Police joined them, using megaphones. The water rose steadily, surging above the second floors of homes and lifting them off their foundations. Cars were stacked three high in the streets. Miles inland along a river valley, cows munched Monday next to marooned boats, refrigerators, sofas and other debris. "The maritime radio said there wouldn't be a tsunami," said survivor Rogilio Reyes, who was tipped off by the teenagers. Dichato Mayor Eduardo Aguilera said 49 people were missing and 800 homes were destroyed. Some people fled to high ground, only to return too early and get caught by the tsunami, he said. Fourteen bodies were found by Monday. The only aid: A fire department water truck.