Conversione tra parametri del moto del suolo e intensità macrosismica

Istituto Nazionale di Geofisica e Vulcanologia

Empirical relationships between macroseismic intensity and different recorded ground motion parameters (GMP) are developed for the Italian territory in the framework of the project for the update of the national seismic hazard model (MPS19). The relationships are derived from a dataset of GMPs, e.g. peak ground acceleration (PGA) and peak ground velocity (PGV) from ITACA 2.3 (Luzi et al., 2017; Lanzano et al., 2018), and macroseismic intensities from DBMI15 (Locati et al., 2016). In order to obtain the most complete dataset of available macroseismic intensity data, a series of publications with the results of macroseismic surveys on recent earthquakes in Central Italy (Galli et al., 2016) not yet included in DBMI15 are also considered. The final dataset is being developed correlating strong motion stations and macroseismic intensity observations generally within 6 km from each other. The adopted functional form is non-linear and relates the logarithm of GMP and macroseismic intensity