HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >

Locations and types of ruptures involved in the 2008 Sichuan earthquake inferred from SAR image matching

Files in This Item:
Kobayashi_GRL2009.pdf75.72 MBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Locations and types of ruptures involved in the 2008 Sichuan earthquake inferred from SAR image matching
Authors: Kobayashi, Tomokazu Browse this author
Takada, Youichiro Browse this author
Furuya, Masato Browse this author →KAKEN DB
Murakami, Makoto Browse this author
Keywords: 2008 Sichuan Earthquake
ground displacement
SAR offset-tracking
Issue Date: Apr-2009
Publisher: American Geophysical Union
Journal Title: Geophysical Research Letters
Volume: 36
Issue: 7
Start Page: L07302
Publisher DOI: 10.1029/2008GL036907
Abstract: We have detected detailed ground displacements in the proximity of the Longmen Shan fault zone (LMSFZ) by applying a SAR offset-tracking method in the analysis of the 2008 Sichuan earthquake. An elevation-dependent correction is indispensable for achieving sub-meter accuracy. A sharp displacement discontinuity with a relative motion of ~1-2 m appears over a length of 200 km along the LMSFZ, which demonstrates that the main rupture has proceeded on the Beichuan fault (BF) among several active faults composing the LMSFZ, and a new active fault is detected on the northeastward extension of the BF. The rupture on the BF is characterized by a right-lateral motion in the northeast, while in the southwest an oblique right-lateral thrust slip is suggested. In contrast to the northeast, where a major rupture proceeded on the BF only, in the southwest multiple thrust ruptures have occurred in the southeastern foot of the Pengguan massif.
Rights: An edited version of this paper was published by AGU. Copyright 2009 American Geophysical Union.
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小林 知勝

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University