Abstract
Earthquakes may be triggered by changes in the elastic energy which are neither too fast (∼days) nor too slow (∼106 yr). Such a point of view provides a qualitative understanding of suggested correlations between polar motion and the annual seismic energy release. The Chandler wobble and earthquakes may have a common excitation source—the release of elastic energy stored in the Earth—and we show that a resonant coupling between seismic activity and polar motion has the right sign and strength to explain the pumping of the Chandler wobble as a consequence of in-phase release of elastic energy.
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PINES, D., SHAHAM, J. Seismic Activity, Polar Tides and the Chandler Wobble. Nature 245, 77–81 (1973). https://doi.org/10.1038/245077a0
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DOI: https://doi.org/10.1038/245077a0
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