掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 8-1巻 年： 1990年 頁： 505-510頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Turgay TURKER, Fumio YAMAZAKI, Tsuneo KATAYAMA タイトル（英）： ANALYSIS OF SEISMIC WAVE PROPAGATION BASED ON THE CHIBA ARRAY DATA 抄録（英）：
A study on seismic wave propagation was conducted using earthquake ground motions recorded in the Chiba array. The 1984 Naganoken-Seibu earthquake was used since this event contains a clear phase of surface waves. Firstly, the change of frequency contents along with time was demonstrated using the nonstationary spectrum. The dominance of the body wave at the beginning and that of the surface wave at the latter part of the time history were indicated together with the result on the principal axes. The orbit spectra for this latter part exhibited a typical Love wave pattern. FK spectrum analysis was also conducted and the apparent wave velocity obtained by the analysis was compared with those from the tripartite method and the theoretical dispersion curve. The apparent velocities obtained from the records well corresponded to the phase velocity of the Love wave. The azimuthal angles from the records were also found to be close to the direction of the epicenter. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集