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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: TimF who wrote (33240)	5/11/2011 8:05:51 PM
From: average joe	Respond to of 36921

Tom - I said next full moon it will get ugly, i.e. in the sense of measuring time. E.g. I think we should have tea at 2:00 or I feel fatigued. I didn't say the moon when it is full next time will cause something to be ugly.

To: TimF who wrote (33240)	5/12/2011 12:52:40 PM
From: Maurice Winn	1 Recommendation Respond to of 36921

Tim, for 30 years it has been obvious to me that tidal forces trigger both volcanoes and earthquakes. Eruptions happen when upward forces exceed downward. It's simple engineering. As the superheated liquids turn to gases [due to reduced force from above], they move stuff above [such as lake water] out of the way which reduces loads further and the eruption process is underway. Same for earthquakes. They happen when the moving forces exceed the static friction and shear strength of the resistant rocks. Tidal force can be just the trigger to trigger it. The volcanoes happen with high tide forces [sun and moon aligned]. Earthquake forces around the world are in all directions so it's not such a simple arrangement. The San Andreas fault is transcurrent, north south, so that would need a different tidal force to trigger it from a subduction slippage under Japan, or Chile. My guess is that there is better correlation of volcanic eruption with tidal force than for earthquakes. Mqurice