Seismic attenuation tomography by use of amplitude attenuation and pulse broadening

1993 ◽  
Author(s):  
Toshiki Watanabe ◽  
Koichi Sassa
Keyword(s):  
Seismic Attenuation ◽  
Amplitude Attenuation ◽  
Pulse Broadening ◽  
Seismic Attenuation Tomography

Attenuation measurements on shallow seismic refraction data

Geophysics ◽  
1986 ◽  
Vol 51 (2) ◽  
pp. 250-254 ◽  
Author(s):  
P. J. Hatherly
Keyword(s):  
Field Data ◽  
Rock Type ◽  
Seismic Refraction ◽  
Seismic Attenuation ◽  
Computer Technique ◽  
Shallow Seismic ◽  
Seismic Refraction Data ◽  
Refraction Data ◽  
Pulse Broadening ◽  
Engineering Geophysics

Techniques of making seismic attenuation measurements are of interest in engineering geophysics because they allow rock type and quality to be estimated. The measurements may be made on field data from spectral amplitudes, amplitude decay curves, or observed pulse broadening. With shallow seismic refraction data, attenuation is best measured from the pulse broadening. I discuss the problem and demonstrate a computer technique for making routine measurements.

scholarly journals Seismic attenuation tomography of the Tonga-Fiji region using phase pair methods

1999 ◽  
Vol 104 (B3) ◽  
pp. 4795-4809 ◽  
Author(s):  
Erich G. Roth ◽  
Douglas A. Wiens ◽  
Leroy M. Dorman ◽  
John Hildebrand ◽  
Spahr C. Webb
Keyword(s):  
Seismic Attenuation ◽  
Seismic Attenuation Tomography

scholarly journals High resolution regional seismic attenuation tomography in eastern Tibetan Plateau and adjacent regions

2011 ◽  
Vol 38 (16) ◽  
pp. n/a-n/a ◽  
Author(s):  
Xueyang Bao ◽  
Eric Sandvol ◽  
James Ni ◽  
Thomas Hearn ◽  
Yongshun John Chen ◽  
...  
Keyword(s):  
High Resolution ◽  
Tibetan Plateau ◽  
Seismic Attenuation ◽  
Eastern Tibetan Plateau ◽  
Seismic Attenuation Tomography

Seismic attenuation tomography in frequency domain and its application to engineering

2000 ◽  
Vol 43 (4) ◽  
pp. 431-438 ◽  
Author(s):  
Yonggui Zhao ◽  
Qin Li ◽  
Hong Guo ◽  
Hongxiao Jin ◽  
Chaofan Wang
Keyword(s):  
Frequency Domain ◽  
Seismic Attenuation ◽  
Seismic Attenuation Tomography

scholarly journals Ambient noise Love wave attenuation tomography for the LASSIE array across the Los Angeles basin

2021 ◽  
Vol 7 (22) ◽  
pp. eabe1030
Author(s):  
Xin Liu ◽  
Gregory C. Beroza ◽  
Lei Yang ◽  
William L. Ellsworth
Keyword(s):  
Los Angeles ◽  
Wave Attenuation ◽  
Plate Boundary ◽  
Seismic Attenuation ◽  
Supplementary Information ◽  
Los Angeles Basin ◽  
The North ◽  
Attenuation Structure ◽  
Earthquake Faults ◽  
Seismic Attenuation Tomography

The Los Angeles basin is located within the North America–Pacific plate boundary and contains multiple earthquake faults that threaten greater Los Angeles. Seismic attenuation tomography has the potential to provide important constraints on wave propagation in the basin and to provide supplementary information on structure in the form of the distribution of anelastic properties. On the basis of the amplitude information from seismic interferometry from the linear LASSIE array in the Los Angeles basin, we apply station-triplet attenuation tomography to obtain a 2D depth profile for the attenuation structure of the uppermost 0.6 km. The array crosses four Quaternary faults, three of which are blind. The attenuation tomography resolves strong attenuation (shear attenuation Qs ~ 20) for the fault zones and is consistent with sharp boundaries across them.

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