earth oscillations

earth oscillations

[¦ərth ‚äs·ə′lā·shənz]
(geophysics)
Any rhythmic deformations of the earth as an elastic body; for example, the gravitational attraction of the moon and sun excite the oscillations known as earth tides.
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References in periodicals archive ?
112-118: "Note on the Phase PKJKP," in Bulletin of the Seismological Society of America, 46 (1956), 333-334: "Oscillations of the Earth and the Earth's Deep Internal Structure," in Australian Journal of Science, 24 (1962), 303-307; and "Free Earth Oscillations and the Internal Structure of the Earth," in New Zealand Mathematical Chronicle, 5 (1976), 17-45.
An important problem was adaptation of the hydrodynamic system of the tiltmeter for registration of phenomenon of free Earth oscillations.

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