Adam M. Dziewoński

Preliminary reference Earth model

An application of normal mode theory to the retrieval of structural parameters and source mechanisms from seismic spectra

A cyclic process of refining models of the mechanical structure of the Earth and models of the mechanism of one or more earthquakes is developed. The theory of the elastic-gravi...

On Regional Differences in Dispersion of Mantle Rayleigh Waves

Rayleigh waves generated by the Peru—Bolivian border earthquake of 1963 August 15 have been analysed at 35 WWSSN stations in the period range between 150 and 300 seconds. Thirty...

Observations of Normal Modes from 84 Recordings of the Alaskan Earthquake of 1964 March 28

We have taken 84 World Wide Standard Seismograph Network recordings of the Alaskan earthquake of 1964 March 28, one of the largest earthquakes in history, and have made an inten...

Residual dispersion measurement—a new method of surface-wave analysis

Abstract Measurements of group velocities by means of band-pass filtering lead to systematic errors when group in velocity changes rapidly with frequency. A new method hereafter...