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News! Micro-g Lacoste gPhone Gravity Meters measure anomalous seismic noise:

graphic of gphone data in Colorado and Minnesota

Shown above are the unscaled (only corrected for drift) outputs of two gPhone gravimeters separated by 1100 km for twenty days in November, 2008. One meter was in Colorado, the other in Minnesota. Both the magnitude and the degree of correlation in the measurements of seismic noise are striking. Please click here for more information.

See related articles on earthquake monitoring with gPhones (pdf), gPhone Corrleation, the Sichuan Earthquake of 2008, and the Kurile Island Earthquakes of 2006.

Current polar motion values:
Sat Jul 4 02:23:02 UTC 2009
X = 0.1412
Y = 0.5309

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