A shear wave analysis system for semi-automatic measurements of shear wave splitting above volcanic earthquakes: descriptions and applications

摘要

Our interest is the study of the seismograms with the purpose ofmonitoring and modeling volcanoes. In particular, since the shear waves bringinformation about the anisotropic system characterizing the shallow crust, theyare also sensitive to all temporal variations caused by changes in the stress fieldacting on the area. Therefore we intend to realize an algorithm that can provideshear wave splitting estimates in quasi-real time and in a semi-automatic way.Finally we perform validation tests on both real and synthetic data, in order todefine the accuracy and validity range of our program.