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タイトル: Scaling relationship between the duration and the amplitude of non-volcanic deep low-frequency tremors
シリーズ番号/レポート番号: L07305
著者: Watanabe, Tomoko
Hiramatsu, Yoshizo
Obara, Kazushige
平松, 良浩
発行日: 2007年 4月16日
出版社(者): American Geophysical Union
引用: Geophysical Research Letters 34(7), Article number L07305
雑誌名: Geophysical Research Letters
ISSN: 0094-8276
巻: 34
号: 7
抄録: We investigate a duration-amplitude relation of non-volcanic deep low-frequency (DLF) tremors in the Tokai region, southwest Japan, to constrain the source process of the tremors. We apply two models to the distribution, one is an exponential model as a scale bound distribution and the other a power law model as a scale invariant distribution. The exponential model shows a better fit to the duration-amplitude distribution of the tremors than a power law model, implying that the DLF tremors are caused by a scale-bound source process. The source process of the DLF tremors, therefore, differs from those for earthquakes. We suggest that the non-volcanic DLF tremor is possibly caused by a fixed source dimension with variable excess pressure of fluid or variable stress drop. Copyright 2007 by the American Geophysical Union.
DOI: 10.1029/2007GL029391
URI: http://hdl.handle.net/2297/6771
資料種別: Journal Article
版表示: author

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/6771



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