The 3D numerical simulation of near-source ground motion during the Marsica earthquake, central Italy, 100 years later

In this paper we show 3D physics-based numerical simulations of ground motion during one of the most devastating earthquakes in the recent Italian history, occurred on Jan 13, 1915, Marsica, Central Italy. The results provide a realistic estimate of the earthquake ground motion and fit reasonably we...

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Bibliographic Details
Published in:Soil dynamics and earthquake engineering (1984) 2016-12, Vol.91, p.39-52
Main Authors: Paolucci, R., Evangelista, L., Mazzieri, I., Schiappapietra, E.
Format: Article
Language:English
Subjects:
3-D technology
3D physics-based numerical simulations
Adequacy
Computer simulation
Earthquake damage
Earthquake engineering
Earthquakes
Faults
Geodetic measurements
Geodetics
Ground motion
Ground-based observation
Mathematical models
Near-source earthquake ground motion
Numerical analysis
Numerical simulations
Physics
Seismic activity
Seismology
Spatial distribution
Spatial variability
Studies
Three dimensional models
Vertical motion
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Summary:In this paper we show 3D physics-based numerical simulations of ground motion during one of the most devastating earthquakes in the recent Italian history, occurred on Jan 13, 1915, Marsica, Central Italy. The results provide a realistic estimate of the earthquake ground motion and fit reasonably well both the geodetic measurements of permanent ground settlement, and the observed macroseismic distribution of damage. In addition, these results provide a very useful benchmark to improve the current knowledge of near-source earthquake ground motion, including evaluation of the best distance metrics to describe the spatial variability of the peak values of ground motion, the relative importance of fault normal vs fault parallel components, the conditions under which vertical ground motion may prevail, as well as the adequacy of 1D vs 3D modelling of site amplification effects. •A comprehensive 3D study to simulate ground motion during the 1915 Marsica earthquake.•The study of the spatial variability of near source ground motion features.•Identification of the best distance metric to study the decay of ground motion peak values.•The analysis of 3D vs 1D features of seismic site amplification.
ISSN:0267-7261
1879-341X
DOI:10.1016/j.soildyn.2016.09.023