The global geodynamic effect of the Macquarie Ridge earthquake

Details The global geodynamic effect of the Macquarie Ridge earthquake The global geodynamic effect of the Macquarie Ridge earthquake

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1009g&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, June 1990, p. 1009-1012.

Physics

8

Earthquakes, Geodynamics, Mass Distribution, Ridges, Seismic Waves, Earth Rotation, Earth Surface, Gravitational Fields

Scientific paper

The coseismic effect of the Macquarie Ridge earthquake on the earth's length-of-day, polar motion, and low-degree harmonic coefficients of the gravitational field are compared. It is found that this earthquake should have caused the length-of-day to decrease by 0.06, the position of the mean rotation pole to shift 0.11 milliarcsec towards 323 E longitude, and selected degree l = 2-5 gravitational field coefficients to change by about 1 part in 10 to the 13th.

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