scholarly journals Water-table and discharge changes associated with the 2016–2017 seismic sequence in central Italy: hydrogeological data and a conceptual model for fractured carbonate aquifers

2018 ◽  
Vol 26 (4) ◽  
pp. 1009-1026 ◽  
Author(s):  
Marco Petitta ◽  
Lucia Mastrorillo ◽  
Elisabetta Preziosi ◽  
Francesca Banzato ◽  
Marino Domenico Barberio ◽  
...  
Keyword(s):  
Conceptual Model ◽  
Water Table ◽  
Central Italy ◽  
Seismic Sequence ◽  
Carbonate Aquifers ◽  
Fractured Carbonate ◽  
Hydrogeological Data

scholarly journals Fractured carbonate aquifers of Sibillini Mts. (Central Italy)

2021 ◽  
Vol 17 (2) ◽  
pp. 140-149
Author(s):  
Stefano Viaroli ◽  
Francesco Mirabella ◽  
Lucia Mastrorillo ◽  
Serafino Angelini ◽  
Daniela Valigi
Keyword(s):  
Central Italy ◽  
Carbonate Aquifers ◽  
Fractured Carbonate

scholarly journals Sustained post‐seismic effects on groundwater flow in fractured carbonate aquifers in Central Italy

2019 ◽  
Vol 34 (5) ◽  
pp. 1167-1181 ◽  
Author(s):  
Lucia Mastrorillo ◽  
Michele Saroli ◽  
Stefano Viaroli ◽  
Francesca Banzato ◽  
Daniela Valigi ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Central Italy ◽  
Seismic Effects ◽  
Carbonate Aquifers ◽  
Fractured Carbonate

scholarly journals Failure Analysis of Apennine Masonry Churches Severely Damaged during the 2016 Central Italy Seismic Sequence

Buildings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 58 ◽  
Author(s):  
Francesco Clementi
Keyword(s):  
Case Studies ◽  
Central Italy ◽  
Numerical Data ◽  
Sensitivity Study ◽  
Nonlinear Material ◽  
Seismic Sequence ◽  
Nonlinear Approach ◽  
Nonlinear Static ◽  
Masonry Churches ◽  
Global And Local

This paper presents a detailed study of the damages and collapses suffered by various masonry churches in the aftermath of the seismic sequence of Central Italy in 2016. The damages will first be analyzed and then compared with the numerical data obtained through 3D simulations with eigenfrequency and then nonlinear static analyses (i.e., pushover). The main purposes of this study are: (i) to create an adequately consistent sensitivity study on several definite case studies to obtain an insight into the role played by geometry—which is always unique when referred to churches—and by irregularities; (ii) validate or address the applicability limits of the more widespread nonlinear approach, widely recommended by the Italian Technical Regulations. Pushover analyses are conducted assuming that the masonry behaves as a nonlinear material with different tensile and compressive strengths. The consistent number of case studies investigated will show how conventional static approaches can identify, albeit in a qualitative way, the most critical macro-elements that usually trigger both global and local collapses, underlining once again how the phenomena are affected by the geometry of stones and bricks, the texture of the wall face, and irregularities in the plan and elevation and in addition to hypotheses made on the continuity between orthogonal walls.

scholarly journals Exceedance of design actions in epicentral areas: insights from the ShakeMap envelopes for the 2016–2017 central Italy sequence

2021 ◽  
Author(s):  
Iunio Iervolino ◽  
Pasquale Cito ◽  
Chiara Felicetta ◽  
Giovanni Lanzano ◽  
Antonio Vitale
Keyword(s):  
Earthquake Engineering ◽  
Structural Damage ◽  
Structural Engineering ◽  
Central Italy ◽  
Civil Defense ◽  
Point Of View ◽  
Seismic Sequence ◽  
Ground Shaking ◽  
Motion Effect ◽  
Observed Damage

AbstractShakeMap is the tool to evaluate the ground motion effect of earthquakes in vast areas. It is useful to delimit the zones where the shaking is expected to have been most significant, for civil defense rapid response. From the earthquake engineering point of view, it can be used to infer the seismic actions on the built environment to calibrate vulnerability models or to define the reconstruction policies based on observed damage vs shaking. In the case of long-lasting seismic sequences, it can be useful to develop ShakeMap envelopes, that is, maps of the largest ground intensity among those from the ShakeMap of (selected) events of a seismic sequence, to delimit areas where the effects of the whole sequence have been of structural engineering relevance. This study introduces ShakeMap envelopes and discusses them for the central Italy 2016–2017 seismic sequence. The specific goals of the study are: (i) to compare the envelopes and the ShakeMap of the main events of the sequence to make the case for sequence-based maps; (ii) to quantify the exceedance of design seismic actions based on the envelopes; (iii) to make envelopes available for further studies and the reconstruction planning; (iv) to gather insights on the (repeated) exceedance of design seismic actions at some sites. Results, which include considerations of uncertainty in ShakeMap, show that the sequence caused exceedance of design hazard in thousands of square kilometers. The most relevant effects of the sequence are, as expected, due to the mainshock, yet seismic actions larger than those enforced by the code for structural design are found also around the epicenters of the smaller magnitude events. At some locations, the succession of ground-shaking that has excited structures, provides insights on structural damage accumulation that has likely taken place; something that is not accounted for explicitly in modern seismic design. The envelopes developed are available as supplemental material.

Groundwater dynamics in fossil fractured carbonate aquifers in Eastern Arabian Peninsula: A preliminary investigation

2019 ◽  
Vol 571 ◽  
pp. 460-470 ◽  
Author(s):  
Abotalib.Z. Abotalib ◽  
Essam Heggy ◽  
Giovanni Scabbia ◽  
Annamaria Mazzoni
Keyword(s):  
Arabian Peninsula ◽  
Preliminary Investigation ◽  
Carbonate Aquifers ◽  
Groundwater Dynamics ◽  
Fractured Carbonate

scholarly journals Along-strike rupture directivity of earthquakes of the 2009 L'Aquila, central Italy, seismic sequence

2015 ◽  
Vol 203 (1) ◽  
pp. 399-415 ◽  
Author(s):  
G. Calderoni ◽  
A. Rovelli ◽  
Y. Ben-Zion ◽  
R. Di Giovambattista
Keyword(s):  
Central Italy ◽  
Seismic Sequence ◽  
Rupture Directivity

scholarly journals Iconic crumbling of the clock tower in Amatrice after 2016 central Italy seismic sequence: advanced numerical insight

2018 ◽  
Vol 11 ◽  
pp. 314-321 ◽  
Author(s):  
M. Poiani ◽  
V. Gazzani ◽  
F. Clementi ◽  
G. Milani ◽  
M. Valente ◽  
...  
Keyword(s):  
Central Italy ◽  
Seismic Sequence

scholarly journals Characterisation of fractured carbonate aquifers using ambient borehole dilution tests

2020 ◽  
Vol 589 ◽  
pp. 125191
Author(s):  
Prodeo Yao Agbotui ◽  
Landis Jared West ◽  
Simon Henry Bottrell
Keyword(s):  
Carbonate Aquifers ◽  
Fractured Carbonate

scholarly journals The first month of the 2016 central Italy seismic sequence: fast determination of time domain moment tensors and finite fault model analysis of the ML 5.4 aftershock

2016 ◽  
Vol 59 ◽  
Author(s):  
Laura Scognamiglio ◽  
Elisa Tinti ◽  
Matteo Quintiliani
Keyword(s):  
Time Domain ◽  
Moment Tensor ◽  
Central Italy ◽  
Model Analysis ◽  
Fault Model ◽  
Normal Faults ◽  
Seismic Sequence ◽  
Moment Tensors ◽  
Finite Fault ◽  
Finite Fault Model

<p>We present the revised Time Domain Moment Tensor (TDMT) catalogue for earthquakes with M_L larger than 3.6 of the first month of the ongoing Amatrice seismic sequence (August 24th - September 25th). Most of the retrieved focal mechanisms show NNW–SSE striking normal faults in agreement with the main NE-SW extensional deformation of Central Apennines. We also report a preliminary finite fault model analysis performed on the larger aftershock of this period of the sequence (M_w 5.4) and discuss the obtained results in the framework of aftershocks distribution.</p>

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