Faulting characteristics of supershear earthquakes

被引：88

作者：

Bouchon, Michel ^{[1
,2
]}

Karabulut, Hayrullah ^{[3
,4
]}

Bouin, Marie-Paule

Schmittbuhl, Jean ^{[5
,6
]}

Vallee, Martin ^{[7
]}

Archuleta, Ralph ^{[8
]}

Das, Shamita ^{[9
]}

Renard, Francois ^{[1
,2
]}

Marsan, David ^{[10
]}

机构：

[1] CNRS, Grenoble, France

[2] Univ Grenoble 1, Grenoble, France

[3] Kandilli Observ, Istanbul, Turkey

[4] Earthquake Res Inst, Istanbul, Turkey

[5] CNRS, Strasbourg, France

[6] Univ Strasbourg, Strasbourg, France

[7] Univ Nice, Geosci Azur, Nice, France

[8] Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA

[9] Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England

[10] Univ Savoie, Chambery, France

来源：

TECTONOPHYSICS | 2010年 / 493卷 / 3-4期

关键词：

Earthquake rupture; Rupture velocity; Fault geometry; Earthquake dynamics; Supershear rupture; 17; AUGUST; 1999; 2001; KOKOXILI-EARTHQUAKE; NORTH ANATOLIAN FAULT; SURFACE RUPTURE; SLIP DISTRIBUTION; IZMIT EARTHQUAKE; DENALI FAULT; TOTSCHUNDA FAULTS; KUNLUN EARTHQUAKE; DUZCE EARTHQUAKE;

D O I：

10.1016/j.tecto.2010.06.011

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Recent observations of large continental strike-slip earthquakes show that different fault segments may rupture at different speeds and that rupture may propagate faster than the shear wave velocity of surrounding rocks. We report that all the documented occurrences of supershear rupture are associated with faults which have simple geometry. The surface trace of these faults is described in the field or seen on satellite images as remarkably linear, continuous and narrow. Segmentation features along these segments are small or absent and the deformation is highly localized. As theoretically predicted, supershear is clearly associated with Mode II rupture. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：244 / 253

页数：10

共 63 条

[1] Near-source ground motions from simulations of sustained intersonic and supersonic fault ruptures [J].