On the data integration of seismological observation and deep seismic exploration. The crustal modeling for the Messina Straits Area as an example

Given an earth crust model having homogeneous layers and spherical<br />symmetry, the travel-times equations of the direct and refracted longitudinal<br />waves are first deduced. These linear equations are determined<br />from the seismic ray parameter p, and from the known term a,. The<br />parameter p, is connected with the velocity of the elastic waves that are<br />refracted on the i-th layer; «, depends on the velocity of the layers crossed<br />by the seismic ray and on their thickness.<br />Subsequently, the equations of the first arrivals, observed in quite a<br />number of stations surrounding the Straits of Messina during the seismic<br />crisis of the Gulf of Patti (1978), are utilized for working out a crustal model<br />for the Messina Straits area. Given the inadequatly of the passive seismology<br />data both in number and in characteristics the most superficial layers<br />of the model are defined using the results of deep seismic exploration<br />carried out in areas contiguous to the Straits. The thickness and velocity<br />of the longitudinal waves in the underlying layers are, instead, determined

Abstract licence: CC BY

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