2012年印度洋地震同震断层滑动模型分析:GPS数据对地壳形变研究的重要性

IF 2 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Acta Geophysica Pub Date : 2016-12-28 DOI:10.1515/acgeo-2016-0106

E. Gunawan, P. Maulida, I. Meilano, M. Irsyam, J. Efendi

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引用次数: 16

摘要

基于连续GPS数据，对2012年印度洋地震的同震形变进行了分析。我们利用2012年地震的同震滑动模型，通过大地测量和/或地震波形反演，计算了安达曼-尼科巴、苏门答腊和爪哇的同震位移。在我们的分析中，我们采用了地球的球形分层模型，我们发现爪哇岛经历了高达8毫米的同震位移，正如我们的GPS网络所观察到的那样。与GPS数据测量的同震偏移量相比，由多次观测得出的同震滑动模型比基于单一类型观测的模型产生更好的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of Coseismic Fault Slip Models of the 2012 Indian Ocean Earthquake: Importance of GPS Data for Crustal Deformation Studies

Based on continuous GPS data, we analyze coseismic deformation due to the 2012 Indian Ocean earthquake. We use the available coseismic slip models of the 2012 earthquake, derived from geodetic and/or seismic waveform inversion, to calculate the coseismic displacements in the Andaman-Nicobar, Sumatra and Java. In our analysis, we employ a spherical, layered model of the Earth and we find that Java Island experienced coseismic displacements up to 8 mm, as also observed by our GPS network. Compared to coseismic offsets measured from GPS data, a coseismic slip model derived from multiple observations produced better results than a model based on a single type of observation.

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来源期刊

Acta Geophysica 地学-地球化学与地球物理

CiteScore

3.90

自引率

13.00%

发文量

251

审稿时长

5.3 months

期刊介绍： Acta Geophysica is open to all kinds of manuscripts including research and review articles, short communications, comments to published papers, letters to the Editor as well as book reviews. Some of the issues are fully devoted to particular topics; we do encourage proposals for such topical issues. We accept submissions from scientists world-wide, offering high scientific and editorial standard and comprehensive treatment of the discussed topics.