Coseismic Surface Ruptures of the 2003 Chuya Earthquake (Gorny Altai): Slip Geometry and Spatial Patterns

Author:

Vysotsky E.M.1,Novikov I.S.1,Lunina O.V.2,Agatova A.R.13,Nepop R.K.13

Affiliation:

1. V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia

2. Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences, ul. Lermontova 128, Irkutsk, 664033, Russia

3. Ural Federal University, ul. Mira 19, Yekaterinburg, 620002, Russia

Abstract

A 48 km long zone of surface deformation produced by the Ms = 7.3 intracontinental earthquake of 2003 in Gorny Altai is studied in its five segments between the Aktru and Irbistu rivers, where ruptures show the greatest offsets and distinct structural patterns. A total of 554 coseismic ruptures of five slip geometry types are analyzed in terms of length, orientation, and relative percentage. The rupture patterns are discussed with reference to previously published evidence and compared with other strike-slip zones worldwide.

Publisher

GeoScienceWorld

Subject

Geology,Geophysics

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