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Hierarchical properties of the tectonic stress field in the source region of the 2003 Chuya earthquake

E. V. Leskova and A. A. Emanov
Hierarchical properties of the tectonic stress field in the source region of the 2003 Chuya earthquake
Russian Geology and Geophysics (January 2013) 54 (1): 87-95

Abstract

Local tectonic stress field have been calculated based on aftershock focal mechanisms using materials of epicentral studies with temporary networks of stations in the epicentral area of the 2003 Chuya earthquake. The originality of this work is that the stress state is studied invoking earthquakes with large differences in energy and using highly accurate data on the location and depth in the analysis of events. The main result is the selection of two hierarchical levels of the stress field. It is shown that the stress state determined from data on large earthquakes is homogeneous (horizontal shear) throughout the aftershock zone, and the stress state determined from data on small events varies according to the block structure of the aftershock region.


ISSN: 1068-7971
Serial Title: Russian Geology and Geophysics
Serial Volume: 54
Serial Issue: 1
Title: Hierarchical properties of the tectonic stress field in the source region of the 2003 Chuya earthquake
Affiliation: Russian Academy of Sciences, Altai-Sayan Geophysical Survey, Novosibirsk, Russian Federation
Pages: 87-95
Published: 201301
Text Language: English
Publisher: Allerton Press, New York, NY, United States
References: 31
Accession Number: 2021-036963
Categories: Structural geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch maps
N49°00'00" - N51°00'00", E87°00'00" - E89°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2021, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2021
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