GNGTS 2022 - Atti del 40° Convegno Nazionale

200 GNGTS 2022 Sessione 2.1 characterized by positive δc 3 ), towards the Apennines (zones 9 and 12 with δc 3 close to zero) and the Tyrrhenian coast (zone 10 with negative value), as also observed by Kotha et al. (2020). Acknowledgments. This research is supported by several projects, because of the many different theoretical and applicative implications: i) INGV Pianeta Dinamico (Dynamic Planet)-Working Earth project - Geosciences For The Understanding The Dynamics Of The Earth And The Consequent Natural Risks (CUP code D53J19000170001), funded by MUR (Italian Ministry of University and Research, fund aimed at the relaunch of investments of the central administrations of the State and the development of the country, law 145/2018) - Task S3 – 2021- Seismic attenuation and variability of seismic motion; ii) INGV-DPC agreement B1 2019–2021, with the aim of promoting research activities in the field of seismic hazard in Italy; iii) INGV-DPC agreement B2 2019–2021 (WP1-Task 5). 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