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Using waveform inversion to determin...

Yan, Jia.

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Using waveform inversion to determine local earthquake source parameters in northeastern United States.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Using waveform inversion to determine local earthquake source parameters in northeastern United States./
作者:	Yan, Jia.
面頁冊數:	77 p.
附註:	Adviser: John E. Ebel.
Contained By:	Masters Abstracts International44-04.
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1432532
ISBN:	9780542557590

Using waveform inversion to determine local earthquake source parameters in northeastern United States.
Yan, Jia.

Using waveform inversion to determine local earthquake source parameters in northeastern United States. - 77 p.

Adviser: John E. Ebel.

Thesis (M.S.)--Boston College, 2006.

An algorithm for full waveform inversion involving two programs by different researchers is implemented to compute Green's functions and to use these Green's functions to invert observed seismograms for the seismic moment tensor of local earthquakes. The inversion method for local earthquakes is first tested on California earthquakes, and good fits between synthetic and observed seismograms suggest that the moment tensors are well resolved. The same method is applied to local earthquakes in Northeastern North America (magnitudes from 3 to 5). For earthquakes of magnitude 4.0 and greater in Northeastern North America, reliable results can probably be obtained for most earthquakes, with the fault planes being close to those from the first motion focal mechanism. For smaller earthquakes (M<4.0), the inversion results become less reliable with decreasing magnitude.

ISBN: 9780542557590Subjects--Topical Terms:

535228
Geophysics.

Using waveform inversion to determine local earthquake source parameters in northeastern United States.
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245 1 0 $a Using waveform inversion to determine local earthquake source parameters in northeastern United States.
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502 $a Thesis (M.S.)--Boston College, 2006.
520 $a An algorithm for full waveform inversion involving two programs by different researchers is implemented to compute Green's functions and to use these Green's functions to invert observed seismograms for the seismic moment tensor of local earthquakes. The inversion method for local earthquakes is first tested on California earthquakes, and good fits between synthetic and observed seismograms suggest that the moment tensors are well resolved. The same method is applied to local earthquakes in Northeastern North America (magnitudes from 3 to 5). For earthquakes of magnitude 4.0 and greater in Northeastern North America, reliable results can probably be obtained for most earthquakes, with the fault planes being close to those from the first motion focal mechanism. For smaller earthquakes (M<4.0), the inversion results become less reliable with decreasing magnitude.
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