Earthquakes and the Earth's Wobble

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Science  13 Sep 1968:
Vol. 161, Issue 3846, pp. 1127-1129
DOI: 10.1126/science.161.3846.1127


Observational evidence is presented in support of the hypothesis that large earthquakes excite the earth's natural wobble and produce the observed secular polar shift. Previous theoretical calculations based on elasticity theory and earthquake statistics had predicted a significant effect. There appear to be some premonitory signs of large earthquakes in the pole path.

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