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地震和爆炸的P波层析成像——第二部分:由时频地震图得到的2004年苏门答腊-安达曼地震的断层破裂特征(英文)
引用本文:Monika WILDE-PIóRKO,Seweryn J.DUDA,Marek GRAD.地震和爆炸的P波层析成像——第二部分:由时频地震图得到的2004年苏门答腊-安达曼地震的断层破裂特征(英文)[J].CT理论与应用研究,2011,20(4):465-483.
作者姓名:Monika WILDE-PIóRKO  Seweryn J.DUDA  Marek GRAD
作者单位:Institute of Geophysics;Faculty of Physics;University of Warsaw;Hamburg University;
基金项目:The IRIS DMS is funded through the National Science Foundation and specifically the GEO Directorate through the Instrumentation and Facilities Program of the National Science Foundation under Cooperative Agreement EAR-0004370
摘    要:本文分析了2004年12月26日苏门答腊-安达曼地震的宽频带地震图。目的是通过不同频率成分的子事件的发生时间了解断层的破裂过程。具体分析的是由相应宽频带地震记录得到的P波的时频地震图。分析结果说明,在S波到达前的时窗内发生了最大辐射强度的相应频率低于1 Hz的15次较大子事件,但在同样的时窗内,还发生了最大辐射强度的频...

关 键 词:苏门答腊-安达曼地震  宽频带地震图  频谱地震图  地震能量的高频辐射  破裂持续时间

Tomography of Seismic P-Waves from Earthquakes and Explosions —Part Ⅱ:Morphology of Faulting of the 2004 Sumatra-Andaman Earthquake from Spectral Seismograms
Monika WILDE-PIORKO , Seweryn J. DUDA , Marek GRAD.Tomography of Seismic P-Waves from Earthquakes and Explosions —Part Ⅱ:Morphology of Faulting of the 2004 Sumatra-Andaman Earthquake from Spectral Seismograms[J].Computerized Tomography Theory and Applications,2011,20(4):465-483.
Authors:Monika WILDE-PIORKO  Seweryn J DUDA  Marek GRAD
Institution:1. Institute of Geophysics, Faculty of Physics, University ofWarsaw, Pasteura 7, 02-093 Warsaw, Poland
2. Institute of Geophysics, Hamburg University, Bundesstrasse55, 20146 Hamburg, Germany
Abstract:The paper is concerned with the analysis of broadband seismograms of the Sumatra-Andaman earthquake of 26 December 2004.The purpose of the analysis is to recognize the morphology of the faulting process in terms of the time of occurrence and of the frequency content of subevents.The analysis is based on spectral seismograms of P-waves,obtained from the corresponding broadband recordings.It is found that 15 major subevents with maximum radiation intensity at frequencies lower than about 1 Hz occurred during ...
Keywords:Sumatra-Andaman earthquake  broadband seismograms  spectral seismograms  high-frequent radiation of seismic energy  duration of faulting  
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