A distribution of earthquakes around the Erimo cape, Hokkaido, Japan, determined by three-dimensional velocity structure

DOI IR (HANDLE) Open Access

Bibliographic Information

Other Title
  • 3次元速度構造を考慮した襟裳岬周辺における地震の震源決定

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Description

In order to evaluate differences in an earthquake distribution in one- or three-dimensional velocity structures, we tried re-determinations of locations of earthquakes occurred around the Erimo cape, Hokkaido, Japan, in the three-dimensional heterogeneous model. Because of lowvelocity anomaly developed beneath the Hidaka mountain range, the relocated earthquakes mark that their focal depths tend to decrease. The maximum focal depth change is about 15 km. These changes of relocated earthquakes from those estimated in the one-dimensional model suggest that precise determinations of hypocenter considering realistic, three-dimensional velocity structure would improve our understandings for seismic activity and their focal mechanism around the Erimo cape.

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Details 詳細情報について

  • CRID
    1390853649725133824
  • NII Article ID
    120006410551
  • NII Book ID
    AN0008976X
  • DOI
    10.14943/gbhu.81.33
  • HANDLE
    2115/68477
  • ISSN
    04393503
  • Text Lang
    ja
  • Article Type
    departmental bulletin paper
  • Data Source
    • JaLC
    • IRDB
    • CiNii Articles
  • Abstract License Flag
    Allowed

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