Coseismic deformation induced by the Sumatra earthquake

E. Boschi; E. Casarotti; R. Devoti; D. Melini; A. Piersanti; G. Pietrantonio; F. Riguzzi

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Coseismic deformation induced by the Sumatra earthquake

机译：苏门答腊地震引起的同震形变

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The giant Sumatra-Andaman earthquake of December 26, 2004 caused permanent deformations effects in a region of previously never observed extension. The GPS data from the worldwide network of permanent IGS sites show significant coseismic displacements in an area exceeding 10~7 km~2, reaching most of South-East Asia, besides Indonesia and India. We have analyzed long GPS time series histories in order to characterize the noise type of each site and, consequently, to precisely assess the formal errors of the coseismic offset estimates. The synthetic simulations of the coseismic displacement field obtained by means of a spherical model using different rupture histories indicate that a major part of the energy release took place in a fault plane similar to that obtained by Ammon et al. (2005) and Vigny et al. (2005) but with a larger amount of compressional slip on the northern segment of the fault area.

机译：2004年12月26日的苏门答腊-安达曼大地震在以前从未观察到的延伸区域引起了永久性变形效应。来自全球IGS永久站点网络的GPS数据显示，在超过10〜7 km〜2的区域内，同震位移很大，除印度尼西亚和印度外，到达东南亚的大部分地区。我们分析了很长的GPS时间序列历史，以表征每个站点的噪声类型，从而精确评估了同震偏移估计的形式误差。通过使用不同破裂历史的球形模型获得的同震位移场的综合模拟表明，能量释放的大部分发生在与Ammon等人获得的断层平面相似的断层平面中。（2005）和Vigny等。（2005年），但在断层区域的北部有较大的压缩滑移。

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来源
《Journal of geodynamics》 |2006年第3期|p.52-62|共11页
作者
E. Boschi; E. Casarotti; R. Devoti; D. Melini; A. Piersanti; G. Pietrantonio; F. Riguzzi;
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作者单位

Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, Italy;

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正文语种 eng
中图分类天文学、地球科学;
关键词
sumatra earthquake; coseismic deformations; GPS time series;

机译：苏门答腊地震;地震形变;GPS时间序列;

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1. Two-dimensional coseismic deformation field of the Sumatra-Andaman earthquake 2004 M_w 9.2 derived from synthetic aperture radar observation [J] . ASHAR MUDA LUBIS, NOBUHIRO ISEZAKI, TOSHINORI SATO Remote sensing letters . 2011,第2期

机译：基于合成孔径雷达观测的苏门答腊-安达曼地震2004 M_w 9.2的二维同震形变场
2. Low-frequency acoustic-gravity waves from coseismic vertical deformation associated with the 2004 Sumatra-Andaman earthquake (Mw = 9.2) [J] . Takeshi Mikumo, Takuo Shibutani, Alexis Le Pichon, Journal of geophysical research. Solid earth: JGR . 2008,第b12期

机译：与2004年苏门答腊-安达曼地震有关的同震垂直形变产生的低频声重力波（Mw = 9.2）
3. Low-frequency acoustic-gravity waves from coseismic vertical deformation associated with the 2004 Sumatra-Andaman earthquake (Mw = 9.2) [J] . Takeshi Mikumo, Takuo Shibutani, Alexis Le Pichon, Journal of geophysical research. Solid earth: JGR . 2008,第b12期

机译：与2004年苏门答腊-安达曼地震有关的同震垂直形变产生的低频声重力波（Mw = 9.2）
4. Coseismic Surface Deformations of Global Large Earthquakes in 2014–2016 Detected by Alos-2 Insar [C] . Yu Morishita IEEE International Geoscience and Remote Sensing Symposium . 2018

机译：Alos-2 Insar探测到的2014-2016年全球大地震的地震面形变
5. Coseismic and postseismic deformation of the great 2004 Sumatra-Andaman earthquake. [D] . Hughes, Kristin Leigh Hellem. 2011

机译：2004年苏门答腊-安达曼大地震的同震和震后变形。
6. Coseismic seafloor deformation in the trench region during the Mw8.8 Maule megathrust earthquake [O] . A. Maksymowicz, C. D. Chadwell, J. Ruiz, -1

机译：Mw8.8 Maule特大推力地震沟槽区的同震海底变形。
7. Solid Earth Deformations Induced by the Sumatra Earthquakes of 2004-2005: GPS Detection of Co-Seismic Displacements and Tsunami-Induced Loading [O] . H. -p. Plag, G. Blewitt, C. Kreemer, 2004

机译：2004-2005年苏门答腊地震引起的固体地球变形：同震位移和海啸感应载荷的GPS检测
8. Secular Slip, Regional, Coseismic Effects and Post-Seismic Deformation From the June 28, 1992 Landers Earthquake: Mojave Desert GPS Results [R] . Miller, M., Webb, F., Townsend, D., 1993

机译：1992年6月28日兰德斯地震的长期滑坡，区域，同震效应和震后变形：莫哈韦沙漠Gps结果

Coseismic deformation induced by the Sumatra earthquake

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