Figure S1. Tectonic sketch map of eastern Sicily (a). Key: (1) Late Quaternary volcanics (Mt Etna and Aeolian Islands); (2) Plio-Pleistocene volcanics (Hyblean Plateau); (3) Hyblean Plateau sequences; (4) Gela-Catania Foredeep deposits: (a) Middle-Upper Pleistocene deposits on allochthonous units, (b) Quaternary deposits on the Hyblean sequences; (5) Neogene-Quaternary accretionary wedge units; (6) Maghrebian Thrust Belt units; (7) Calabrian arc units; (8) Front of allochthonous units; (9) Main strike-slip faults; (10) Main thrust; (11) Main Quaternary normal faults. Schematic sketch section of the NE flank of Mt Etna (b). Thermal gradients at Mt Etna volcano (c). Figures redrawn from Tibaldi & Groppelli (2002), Catalano et al. (2004) and Bonaccorso et al. (2010).

Figure S2. Variations of UCS and P-wave velocity of EB (a) and PB (b) basaltic samples with increasing temperature.

GJI_5097_sm_FigS1.tif4951KSupporting info item
GJI_5097_sm_FigS2.tif1379KSupporting info item

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.