Insights in the internal structure of the Ceboruco Volcano (Mexico) from ambient seismic noise tomography
De Plaen, Raphael
Núñez Cornú, Francisco Javier
Núñez Escribano, Diana
Sandoval Hernández, Juan Manuel
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Although it is one of the only historically active volcanoes at the western end of the Mexican volcanic belt, the internal structure of Ceboruco volcano remains poorly constrained. This issue motivated this first seismic tomography of the upper 15 km of the crust to characterize the magma chamber and the hydrothermal system of the volcano. Seismic interferometry applied to ambient seismic noise is increasingly used to retrieve the Green’s function between pairs of stations. This technique allows producing high-resolution images of the upper crust with the advantage of using continuously available, non-destructive data. We use the cross-correlations of the ambient seismic wavefield recorded by a dense network of 21 temporary short-period stations deployed to image shallow crustal structure of Ceboruco volcano. We present the preliminary tomography based on this analysis.