ESTIMATION OF PROPAGATION DIRECTION OF EARTHQUAKE WAVES NEAR GROUND SURFACE BASED ON ARRAY OBSERVATIONS

• YANG Zhongyuan

  埼玉大学

• KAWAKAMI Hideji

  埼玉大学 地圏科学研究センター

Bibliographic Information

Other Title

• アレー観測データに基づく地表面近傍での地震波動の伝播方向の推定
• アレー カンソク データ ニ モトヅク チヒョウメン キンボウ デ ノ ジシン ハドウ ノ デンパ ホウコウ ノ スイテイ

Abstract

The three-dimensional propagation directions of earthquake waves near ground surface were estimated for eight earthquakes. Travel times of the incidence and reflected waves were obtained by using the Normalized Input-Output Minimization (NIOM) method, and 3-D angles of propagation directions were estimated. The estimated directions correlated well with the theoretical ones calculated from the epicenter coordinates, focal depth, and the velocity distribution in the earth's crust. However, the estimated angles (0-20 degrees) from the vertical axis for the observed waves were somewhat larger than the theoretical ones (0-4 degrees).

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2005 (780), 780_41-780_56, 2005

  Japan Society of Civil Engineers

Keywords

• seismic wave
• propagation direction
• array observation
• ground motion

Details

• CRID: 1390001205602212608
• NII Article ID: 120006386837
• NII Article ID: 10013712541
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2005.780_41
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 7236105
• Web Site: http://id.nii.ac.jp/1586/00014345/
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7236105
• Web Site: https://www.jstage.jst.go.jp/article/jscej/2005/780/2005_780_780_41/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed