Postseismic deformation near the Izmit earthquake (17 August 1999, M 7.5) rupture zone

被引：68

作者：

Ergintav, S ^{[1
]}

Bürgmann, R

McClusky, S

Çakmak, R

Reilinger, RE

Lenk, O

Barka, A

Özener, H

机构：

[1] TUBITAK, Sci & Tech Res Council Turkey, Earth & Marine Sci Res Inst, TR-41470 Gebze, Turkey

[2] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[3] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02142 USA

[4] Gen Command Mapping Cebeci, Ankara, Turkey

[5] Tech Univ Istanbul, Eurasia Earth Sci Inst, Istanbul, Turkey

[6] Bogazici Univ, Kandilli Observat & Earthquake Res Inst, Istanbul, Turkey

来源：

BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA | 2002年 / 92卷 / 01期

关键词：

D O I：

10.1785/0120000836

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：

We present and interpret the results of postseismic, Global Positioning System monitoring of the first 298 days following the 17 August 1999 Izmit earthquake. Whereas the data suggest some spatial and temporal complexity in the postseismic motions, the overall pattern can be characterized by time-dependent relaxation functions and suggests exponential decay with an estimated 57-day relaxation time. The very rapid deformation during the first few weeks following the mainshock suggests rapid afterslip on and below the coseismic rupture segments. The exponential decay of the postseismic deformations through the end of the observation period suggests contributions from the tower crustal viscoelastic relaxation.

引用

页码：194 / 207

页数：14

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