ePrints

The 1998 M_w 5.7 Zhangbei-Shangyi (China) earthquake revisited: A buried thrust fault revealed with interferometric synthetic aperture radar

Lookup NU author(s): Professor Zhenhong Li

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

The 1998 M_w 5.7 Zhangbei-Shangyi (China) earthquake is the largest to have occurred in northern China since the large 1976 M_s 7.8 Tangshan earthquake. Due to its proximity to Beijing, the capital of China, it has therefore gained a lot of attention. A great number of studies have been conducted using seismic and geodetic data, but few are able to identify conclusively the orientation of the primary fault plane for this earthquake. In this paper, two independent ERS synthetic aperture radar interferograms are used to determine precisely the location and magnitude of coseismic surface displacements (∼11 cm in the radar line of sight). Modeling the event as dislocation in an elastic half-space suggests that the earthquake is associated with a buried shallow NNE-SSW oriented thrust fault with a limited amount of lateral displacement, which is consistent with seismic intensity distribution and aftershock locations.

Publication metadata

Author(s): Li Z, Feng W, Xu X, Cross P, Zhang J

Publication type: Article

Publication status: Published

Journal: Geochemistry, Geophysics, Geosystems

Year: 2008

Volume: 9

Issue: 4

Print publication date: 01/04/2008

Online publication date: 17/04/2008

ISSN (electronic): 1525-2027

URL: http://dx.doi.org/10.1029/2007GC001910

DOI: 10.1029/2007GC001910

Altmetrics

Share