So is the West side of South America a subduction zone? That's twice in 6 years the Earth's net radius has changed. I guess it's now 6378.???X km +/- 0.000X km if these events cause a change of radius in the cm range. I imagine that somewhere, in the mid Atlantic ridge?, one day the sea floor will extrude open to make up for the 'loss'. I wonder how big the variance is from year to year. Andrew _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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