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Is there a correlation between lithosphere structure and the statistical properties of seismicity?
Author(s) -
Panza Giuliano F.,
Prozorov Albert G.,
Suhadolc Peter
Publication year - 1990
Publication title -
terra nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.353
H-Index - 89
eISSN - 1365-3121
pISSN - 0954-4879
DOI - 10.1111/j.1365-3121.1990.tb00124.x
Subject(s) - lithosphere , geology , induced seismicity , aftershock , seismology , shear (geology) , mantle (geology) , heat flow , thermal , geophysics , petrology , tectonics , physics , meteorology
The elastic parameters and the thickness of the lithospheric part of the mantle, the lid, are correlated with the seismicity of Italy and surrounding areas through the estimation of several statistical parameters. In particular, the intensity of the flow of seismic events, deprived of aftershocks, reveals concentrations associated with large gradients in the lithospheric thickness. The average depth of crustal shocks tends to be very shallow in areas of thin and soft (low shear‐wave velocities) lid. The positive influence, probably reflecting the thermal state in the lithosphere, is very large in connection with the thin and soft lid and where strong gradients in lid thickness are observed, and is small in connection with a thick and hard lid (high shear‐wave velocities).