Fig. 3 | Scientific Reports

Fig. 3

From: 3D seismic velocity models from local earthquake tomography furnish new insights on the Mount Etna volcano (Southern Italy)

Fig. 3

P-wave velocity model obtained in the present study reported in terms of percentage variation with respect to the optimal 1D reference model. In each map, the number in the low-left corner indicates the b.s.l. depth in km. Color scale has been saturated at + 15%. The white curves enclose the area of percentage variation ≥ + 15%. Dashed ellipses mark the anomalies identified on the basis of the Vp/Vs pattern shown in Fig. 5 and discussed in the text. Iso-elevation lines with 500 m spacing are reported. Black lines are the main faults lying in the area (see Fig. 1 and the related caption for further details). Four vertical sections are also shown (see the profiles in the upper-left map). Pins mark the intersection points between the four profiles. The Figure has been managed by using the softwares QGIS (version 3.10, https://qgis.org/), GMT (version 6, https://www.generic-mapping-tools.org/), and CorelDraw (Technical Suite 2022, www.coreldraw.com).

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