2001年8月
Periodicity of strain accumulation detected by permanent GPS array: Possible relationship to seasonality of major earthquakes' occurrence
GEOPHYSICAL RESEARCH LETTERS
- ,
- 巻
- 28
- 号
- 15
- 開始ページ
- 2983
- 終了ページ
- 2986
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1029/2001GL013015
- 出版者・発行元
- AMER GEOPHYSICAL UNION
Continuous CPS measurements at about 500 sites in Japan reveal a time periodic component of crustal strain accumulation within the island arc. The magnitude of this variability is about 20-30 % of the steady annual component of deformation driven by coupling across the subduction zone. The amplitude of temporal variability is strongly organized in space, and its correlation with the secular velocity field suggests a geodynamic origin for the phenomenon. The observed periodicity may help to explain the seasonality of occurrence of the major earthquakes (Magnitude > 7.5) associated with the Japanase subduction zone.
- リンク情報
- ID情報
-
- DOI : 10.1029/2001GL013015
- ISSN : 0094-8276
- Web of Science ID : WOS:000170157400028