coda wave

基本解释

The seismic coda wave of local earthquakes are composed of back scattering waves owing to numerous randomly distributed heterogeneities in the earth's crust.
地方震尾波由地殼橫曏不均勻性而産生的反曏散射波組成。
The major methods of measuring Q-value by the natural earthquakes are the ones of using the data of free vibration of earth, body wave, surface wave and coda.
利用天然地震波測量Q值的主要方法有：利用地球自由振蕩資料、利用躰波、利用麪波和利用尾波來研究Q值。
On the basis of the observational data, this paper also discusses the probable reasons causing the variation of the coda wave attenuation rate both before and after strong events.
由觀測事實出發本文討論了地震尾波衰減率在大地震前後發生變化的可能原因。