三次元地震記象に当てはめた時変自己回帰パラメータの性状

概要

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To prove the relationship between seismic innovation process and attributes of the earthquake fault and to present the existence of pulse-transfer-function expressing the observation-site characteristics are aims of this paper. This paper gives the proofs that horizontal projection of major principal axis of initial motion of the innovation process, which is generated from the time-varying autoregressive model fitted to the velocity seismogram, points to the epicenter and horizontally projected direction of major principal axis of peak value of the innovation process agrees with the striking direction of the earthquake fault. This paper also presents that the matrix-norm transfer funcion, which is defined by means of taking norm with respect to the autoregressive coefficient matrices, indicates the observation-site characteristics such as the nature of soil and geographical features, etc. This fact is independent of magnitude, hypocentral distance and hypocentral location of the earthquake event whose seismogram was used for identifying the autoregressive coefficient matrices.
社団法人日本建築学会の論文
1986-05-30