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Anomalous Roughness of the Pole Path at the Time of the 1994 Bolivia and Kurile Islands Earthquakes

Published online by Cambridge University Press:  12 April 2016

G. Spada ,
L. Alfonsi  and
G. Soldati
G. Spada
Affiliation:
Istituto di Fisica, Universitá di Urbino
L. Alfonsi
Affiliation:
Istituto Nazionale di Geofisica, ROMA
G. Soldati
Affiliation:
Istituto Nazionale di Geofisica, ROMA

Abstract

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We report anomalies in the roughness of the path of the pole of rotation at the time of the Bolivia earthquake of June 9, 1994 (Mω = 8.2) and of the Kurile Islands earthquake of October, 4, 1994 (Mω = 8.3). This finding reinforces the results of previous studies, which have indicated changes in the polar motion curvature at the time of major earthquakes.

Type
Part 4. Long-term Polar Motion
Information
International Astronomical Union Colloquium , Volume 178: Polar Motion: Historical and Scientific Problems , 2000 , pp. 345 - 350
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Alfonsi, L., Piersanti, A., & Spada, G., 1997, Earth. Planet. Sci. Lett., 153, 287.CrossRefGoogle Scholar
Dahlen, F.A., 1973, Geophys. J. R. Astr. Soc., 32, 203.CrossRefGoogle Scholar
Dziewonski, A.M., Chou, T.A., & Woodhouse, J.H., 1981, J. Geophys. Res., 86, 2825.Google Scholar
Green, H.W., & Burnley, P.C., 1989, Nature, 341, 733.CrossRefGoogle Scholar
Gross, R.S., & Chao, B.F., 1985, J. Geophys. Res., 90, 9369.Google Scholar
International Earth Rotation Service (IERS), 1998 IERS Annual Report, Observatoire de Paris, 1999.Google Scholar
Kanamori, H., Anderson, D.L., & Heaton, T.H., 1994, Science, 279, 839.CrossRefGoogle Scholar
Kikuchi, M., and Kanamori, H., 1994, Geophys. Res. Lett., 21, 2341.Google Scholar
Lambeck, K., 1980, The Earth’s variable rotation: Geophysical causes and consequences, Cambridge University Press: Cambridge, 1980.Google Scholar
Mansinha, L., & Smylie, D.E., 1970, in Earthquakes Displacement Field and the Rotation of the Earth, Mansinha, L., Smylie, D.E. & Beck, A. E., Dordrecht: Reidel, 1970.Google Scholar
Power, W.L., & Tullis, T.E., 1991, J. Geophys. Res., 96, 415.CrossRefGoogle Scholar
Preisig, J.R., 1992, Geophys. J. Int., 108, 361.Google Scholar
Uliana, M.M., 1997, Methods of Measuring and Characterizing Surface Roughness: Dept. Geol. Sci., Texas, U. at Austin, unpub. paper.Google Scholar