WoW! Thanks Spaw...didn't realize it was such recent history. In the same documentary was a prediction of an earthquake(sometime within the next 10,000 years)in the midwest. I recall the statement made in describing the intensity: "Imagine the San Francisco earthquake as the tinkling of a 'summons bell' compared to a huge gong...that's what the midwestern quake is going to be like." Hope I'm on tour by then...