Fig. 6
Sketch view of the main results obtained in the present study reporting: (i) the SSE elongated high P-wave velocity body (wide blue area in figure); (ii) the location of the shallow aquifers detected on the northern side of Mt. Etna (i.e., the two small light-blue anomalies at very shallow depths); (iii) the high Vp/Vs anomaly identified on the eastern flank of the volcano (wide red-to-green area on the right); (iv) the high Vp/Vs region between 6 and 10 km on the western side of Mt. Etna (small red-to-green area on the left). For each feature, the corresponding Vp, Vs and Vp/Vs patterns are reported. The red dashed line in the high velocity body indicate the possible former pathway for magma uprising (see text for further details). 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).
