GNGTS 2018 - 37° Convegno Nazionale

358 GNGTS 2018 S essione 2.1 above 5 s for SA and below 0.3 Hz for FAS (Fig. 2a). Fig. 2b shows the standard deviation components, decomposed in between-event, between-station and aleatory (event- and site- corrected) variabilities according to the Al-Atik et al. (2010). Bindi et al. (2018) also report the between-country sigma, since the country regionalization has been introduced as a random effect in the ground motion model calibration. Final remarks. The flatfile will be the primary source of information to develop a regionalized Ground Motion Model (GMM) logic-tree (Weatherill et al. 2018; Douglas 2018) required by the next update of the probabilistic hazard map in Europe in the framework of the SERA EU project (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe; http://www.sera-eu.org/en/ home/). The ESM flatfile is also the reference dataset to derive the update of the ground motion models of shallow crustal events in Italy (Lanzano et al., 2018b). We plan a periodical release of the flatfile, whereas specific releases can be expected after future significant seismic sequences. The inclusion of additional metadata (i.e. event tectonic regimes, event stress drop, site fundamental frequencies) should be discussed within the engineering seismology community, depending on future research developments. Reference Al-Atik, L., N. A. Abrahamson, J. J. Bommer, F. Scherbaum, F. Cotton, and N. Kuehn (2010). The variability of ground-motion prediction models and its components, Seismol. Res. Lett. 81(5) 794–801. Akkar S, Sandıkkaya MA, Şenyurt M, Sisi AA, Ay BÖ, Traversa P, Douglas J, Cotton F, Luzi L, Hernan- dez B, Godey S (2014) Reference database for seismic ground-motion in Europe (RESORCE). Bull Earthq Eng 12(1):311–339. Ambraseys N, Smit P, Douglas J, Margaris B, Sigbjornsson R, Olafsson S, Suhadolc P, Costa G (2004) Internet-Site for European strong motion data. Bollettino di Geofisica Teorica ed Applicata 45(3):113–129 Bindi D, Weatherill G, Kotha S-R, Lanzano G, Luzi L, Cotton F (2018a) The pan-European engineering strong motion (ESM) flatfile: consistency check via residual analysis. Bull Earthquake Eng. https://doi.org/10.1007/s10518- 018-0466-x. Boore DM (2010) Orientation-independent, nongeometric-mean measures of seismic intensity from two horizontal components of motion. Bull Seismol Soc Am 100(4):1830–1835. Douglas J (2018) Capturing geographically varying uncertainty in earthquake ground motion models or what we think we know may change. In: Proceedings of the 16th European conference on earthquake engineering, 18–21 June, Thessaloniki, Greece Lanzano G., Sgobba S., Luzi L., Puglia R., Pacor F., Felicetta C., D’Amico M., Cotton F., Bindi D. (2018a). The pan-European Engineering Strong Motion (ESM) flatfile: compilation criteria and data statistics. Bulletin of Earthquake Engineering, https://doi.org/10.1007/s10518-018-0480-z. Lanzano G., Luzi L., Pacor F., Felicetta C., Puglia R., Sgobba S., D’Amico M. (2018b). Arevision of the ground motion model for shallow crustal earthquakes in Italy. Bulletin of the Seismological Society of America (submitted). Luzi L, Puglia R, Russo E, D’Amico M, Felicetta C, Pacor F, Lanzano G, Çeken U, Clinton J, Costa G, Duni L, Farzanegan E, Gueguen P, Ionescu C, Kalogeras I, zener H, Pesaresi D, Sleeman R, Strollo A, Zare M (2016). The Engineering Strong-Motion database: a platform to access Pan-European accelerometric data. Seismological Research Letters, 87(4), 987-997. Puglia R, Russo E, Luzi L, D’Amico M, Felicetta C, Pacor F, Lanzano G (2018) Strong motion processing service: a tool to access and analyse earthquakes strong motion waveforms. Bull Earthq Eng 16(7):2641–2651. Weatherill G, Bindi D, Cotton F, Danciu L, Luzi L (2018) Building a new ground motion logic tree for Europe: needs, challenges and new opportunities from European seismological data. In: Proceedings of the 16th European conference on earthquake engineering, 18–21 June, Thessaloniki, Greece.