Station correction analysis for surface-wave magnitudes of New Zealand earthquakes
Abstract
Station terms and standard errors are presented for 345 world-wide stations used in the determination of surface-wave magnitudes of 190 selected New Zealand earthquakes over the period 1901-1993 [1]. These will facilitate the estimation of surface-wave magnitudes of other earthquakes in the New Zealand region. The station terms and the residuals from the linear model used to estimate them are both found to be weakly related to the mean distance from the earthquakes recorded by each station. The horizontal and vertical components at a given site are treated as separate stations. The station term for the horizontal component tends to exceed that for the vertical component at mean distances in the 20°-40° range.
References
Dowrick, D.J. and Rhoades, D.A. (1998). Magnitudes of New Zealand earthquakes, 1901-1993, Bulletin NZ. National Society for Earthquake Engineering, 31 (4), 260-280.
Dowrick, D.J. and Smith, E.G.C. (1990). Surface-wave magnitudes of some New Zealand earthquakes 1901- 1988, Bulletin NZ. National Society for Earthquake Engineering, 23 (3), 198-210.
Dowrick, D.J. (1991). Magnitude reassessment of New Zealand earthquakes, Earthquake Engineering and Structural Dynamics, 20, 577-596. DOI: https://doi.org/10.1002/eqe.4290200606
Bulletin of the International Seismological Centre (England), various issues.
Regional Catalogue o f Earthquakes, International Seismological Centre (England), various issues.
Chambers, J.M. and Hastie T.J. (1992). Statistical Models in S, Wadsworth & Brooks/Cole, Pacific Grove, California, 608pp.
Rial, J.A., and Cormier, V.F. (1980). Seismic waves at the epicenter's antipode, Journal of Geophysical Research, 85, B5, 2661-2668. DOI: https://doi.org/10.1029/JB085iB05p02661
Copyright (c) 1999 D. A. Rhoades, D. J. Dowrick

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