Green’s Function, Earthquakes, and a Fast Ambient Noise Tomography Methodology

Green’s function plays an important role in the relationship of a future strong earthquake epicenter to the average earthquake potential score. In the frame of the latter, the fractal dimension of the unified scaling law for earthquakes naturally arises. Here it is also shown to be a cornerstone for...

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Bibliographic Details
Published in:Applied sciences 2024-01, Vol.14 (2), p.697
Main Authors: Varotsos, Panayiotis K., Sarlis, Nicholas V.
Format: Article
Language:English
Subjects:
Algorithms
Earthquakes
Fourier transforms
Greece
Green’s function
inversion
Laws, regulations and rules
Methods
Seismology
shear velocity model
Software
surface wave tomography
Tomography
Velocity
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Summary:Green’s function plays an important role in the relationship of a future strong earthquake epicenter to the average earthquake potential score. In the frame of the latter, the fractal dimension of the unified scaling law for earthquakes naturally arises. Here it is also shown to be a cornerstone for the development of a new ambient noise tomography methodology, which is applied for example to the west coast of Central Greece. In particular, we show that a fast and reliable 3D shear velocity model extraction is possible without the need for a large amount of data, great-circle propagation assumptions, or the intermediate step of inverting for group velocity maps. The tomography results are consistent with previous studies conducted in the neighboring region.
ISSN:2076-3417
2076-3417
DOI:10.3390/app14020697