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Science 13 September 1968:
Vol. 161. no. 3846, pp. 1127 - 1129
DOI: 10.1126/science.161.3846.1127
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Articles

Earthquakes and the Earth's Wobble

L. Mansinha 1 and D. E. Smylie 1

1 Department of Geophysics, University of Western Ontario, London, Canada

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.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Polar Motion Measurements: Subdecimeter Accuracy Verified by Intercomparison.
D. S. ROBERTSON, W. E. CARTER, B. D. TAPLEY, B. E. SCHUTZ, and R. J. EANES (1985)
Science 229, 1259-1261
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Variations in the Rate of Rotation of the Earth.
R. A. Challinor and R. A. Challinor (1971)
Science 172, 1022-1025
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Shear velocities in the lower mantle and the radius of the core.
A. L. HALES and J. L. ROBERTS (1970)
Bulletin of the Seismological Society of America 60, 1427-1436
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