Empirical shaking scenarios

Description

This page collects ground shaking scenarios built with an advanced empirical approach designed for engineering applications and civil protection planning. The methodology is described in the paper by Sgobba et al. (2021) and aims to map the ground motion pattern of past events in Italian regions, where rich datasets of seismic records from multiple events and multiple stations are available.
This methodology combines (1) an ad-hoc nonergodic Ground Motion Model (GMM) corrected for the source region with (2) a spatial correlation model for the site-, and path-systematic residual terms.
The median fields of shaking described by various ground motion parameters (peak ground acceleration and spectral ordinates) and related uncertainty with reference to historical, past or virtual earthquakes can be downloaded below.

Figure: Example of shaking field at PGA (horizontal components) for the Marsica 1915 earthquake (on the left) and map of the propagation effects (on the right).

Products

  1. NESK-Fucino1915: historical scenario of the horizontal components of ground motion for the Fucino 1915 earthquake described in Sgobba e Pacor (2022).
    The NESK-Fucino1915 is distributed as a .zip file, containing:
    • Fucino_1915_M6_7.mat: a MAT-file (Matlab® structure) containing metadata and parameters (PGA and spectral acceleration SA at T=0.5s, 1.0s, 2.0s) of the ground shaking scenario generated from the empirical nonergodic method (Sgobba et al., 2021) for Central Italy;
    • Fucino_1915_M6_7.csv: a comma-separated values (csv) file containing the geographical coordinates of the grid nodes [°] (63001 rows) according to WGS84 geodetic system (columns 1 and 2) and the median ground shaking parameters corresponding to peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s - columns 3, 4, 5, 6, respectively;
    • a README.txt file explaining the abbreviations fields used inside each file.
    2. Citation
    If you use data available in NESK-Fucino1915.zip, cite as:
    Sgobba, S., Pacor, F., Lanzano, G. (2022). NESK_Fucino1915: Nonergodic Empirical Shaking Scenario for the M6.7 1915 Fucino earthquake (Version 1.0) [Data set]. Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/GMM_scenarios/nesk_fucino1915

    Related papers
    • Sgobba S., Pacor F. (2023) An application of the NonErgodic ground ShaKing (NESK) approach to an historical earthquake scenario: The case-study of the 1915 Fucino earthquake (central Italy), Soil Dyn. Earth. Eng. 164, 107622, ISSN 0267-7261, https://doi.org/10.1016/j.soildyn.2022.107622
    • Sgobba S., Lanzano G., Pacor F. (2021) Empirical nonergodic shaking scenarios based on spatial correlation models: An application to central Italy. Earthquake Engng Struct Dyn. 2021; 50: 60 80.https://doi.org/10.1002/eqe.3362

License

Creative Commons License The NESK-Fucino1915 ground shaking scenarios are licensed under the terms of the "Creative Commons Attribution 4.0 International (CC BY 4.0)" License. This means that you are free to share (reproduce, distribute, communicate to the public, publicly display, perform and play this material in any medium and format) and adapt (remix and build upon the material for any purpose, even commercially). The licensor cannot revoke these freedoms as long as you follow the license terms. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Disclaimer

This site provides access to the parametric table containing Central Italy parameters and associated earthquake, station and waveform metadata. Although all the parameters have been checked by analysts, no warranty, implicit or explicit is attached to the data. Every risk due to the improper use of data or the use of inaccurate information is assumed by the user.