Complexity of the Mw 6.3 2009 L'Aquila (central Italy) earthquake: 2. Broadband strong motion modeling

2012 ◽  
Vol 117 (B4) ◽  
pp. n/a-n/a ◽  
Author(s):  
G. Ameri ◽  
F. Gallovič ◽  
F. Pacor
Keyword(s):  
Central Italy ◽  
Strong Motion ◽  
Motion Modeling ◽  
Central Italy Earthquake

scholarly journals Strong-motion observations recorded in Strategic Public Buildings during the 24 August 2016 Mw 6.0 Amatrice (Central Italy) Earthquake

2016 ◽  
Vol 59 ◽  
Author(s):  
Chiara Ladina ◽  
Simone Marzorati ◽  
Giancarlo Monachesi ◽  
Marco Cattaneo ◽  
Massimo Frapiccini ◽  
...  
Keyword(s):  
Local Community ◽  
Central Italy ◽  
Time History ◽  
Strong Motion ◽  
Primary Role ◽  
Motion Data ◽  
Central Italy Earthquake ◽  
Damage Indices ◽  
Marche Region ◽  
Community Information

<p>The Marche Region, in collaboration with INGV, has promoted a project to monitoring public strategic buildings with permanent accelerometer installed at the base of the structures. Public <ins cite="mailto:chiara" datetime="2016-09-27T12:50">structures</ins> play a primary role to maintain the functionality of a local community. Information about vibratory characteristics of the building and subsoil, in addition to the seismic instrumental history that describe the seismic shaking at the base of the structure are collected for each buildings. The real-time acquisition of seismic data allows to obtain accelerometric time history soon after the occurrence of an earthquake. The event of 24 August 2016 in Central Italy was an opportunity to test the functionality of this implemented system. In this work the parameters obtained from strong motion data recorded at the base of the structures were analyzed and the values obtained were inserted with some <ins cite="mailto:mnoise" datetime="2016-09-26T10:13">empirical relationships </ins>used to provide intensity microseismic values and damage indices.</p>

The 6 April 2009 Mw 6.3 L'Aquila (Central Italy) Earthquake: Strong-motion Observations

2009 ◽  
Vol 80 (6) ◽  
pp. 951-966 ◽  
Author(s):  
G. Ameri ◽  
M. Massa ◽  
D. Bindi ◽  
E. D'Alema ◽  
A. Gorini ◽  
...  
Keyword(s):  
Central Italy ◽  
Strong Motion ◽  
Central Italy Earthquake

scholarly journals Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 Mw 6.5 Norcia, Central Italy, Earthquake

2018 ◽  
Vol 90 (2A) ◽  
pp. 659-671 ◽  
Author(s):  
Maria D’Amico ◽  
Chiara Felicetta ◽  
Erika Schiappapietra ◽  
Francesca Pacor ◽  
František Gallovič ◽  
...  
Keyword(s):  
Central Italy ◽  
Strong Motion ◽  
Strong Motion Records ◽  
Central Italy Earthquake

scholarly journals Preliminary engineering analysis of the August 24th 2016, ML 6.0 central Italy earthquake records

2016 ◽  
Vol 59 ◽  
Author(s):  
Iunio Iervolino ◽  
Georgios Baltzopoulos ◽  
Eugenio Chioccarelli
Keyword(s):  
Ground Motion ◽  
Central Italy ◽  
Strong Motion ◽  
Response Spectra ◽  
Rupture Propagation ◽  
Return Periods ◽  
Central Italy Earthquake ◽  
Hazard Disaggregation ◽  
Directivity Effects ◽  
The Impact

An earthquake of estimated local magnitude (ML) 6.0 struck central Italy on the 24th of August (01:36:32 UTC) in the vicinity of Accumoli (close to Rieti, central Italy) initiating a long-lasting seismic sequence that also featured events of larger magnitude within a few months. The earthquake caused widespread building damage and around three-hundred fatalities. Ground motion was recorded by hundreds of seis-mic stations. This work uses accelerometric records for a preliminary discussion, from the earthquake en-gineering perspective, of strong motion caused by the earthquake. Peak and integral ground motion inten-sity measures, are presented. The response spectra at some select stations are analysed with respect to the code-mandated design actions for various return periods at the recording sites. Hazard disaggregation for different return periods is discussed referring to the site of the epicentre of the earthquake. Finally, some preliminary considerations are made concerning the impact of rupture propagation on near-source ground motion; i.e., the records are scanned for traces of pulse-like forward-directivity effects.

scholarly journals Rupture imaging for the 2016 August 24, Mw=6.0 central Italy earthquake, from back-projection of strong-motion array data

2016 ◽  
Vol 59 ◽  
Author(s):  
Gilberto Saccorotti ◽  
Davide Piccinini ◽  
Carlo Giunchi
Keyword(s):  
Waveform Inversion ◽  
Central Italy ◽  
Strong Motion ◽  
Surface Damage ◽  
Beam Power ◽  
Rupture Propagation ◽  
Fault Surface ◽  
Seismic Displacement ◽  
Motion Data ◽  
Central Italy Earthquake

<p class="western" align="justify"><span style="font-family: 'Bitstream Charter', serif;"><span>By extending the conventional Beam-Forming frequency-wavenumber power spectral estimate to the case of arbitrarily-shaped wavefronts, we obtained images of rupture propagation during the 2016 August 24, Mw=6.0 central Italy earthquake. Using a set of strong-motion accelerometers, we evaluate the beam power along the travel time curves associated with synthetic sources spanning a model fault surface. This allows deriving time-dependent images of the distribution of energy radiation throughout the fault plane. Results indicate bi-lateral rupture propagation toward SE and NW, in rough agreement with surface co-seismic displacement and surface damage pattern. To a first order, our results are also consistent with those obtained from full-waveform inversion of strong-motion data.</span></span></p>

Evidence for Static and Dynamic Triggering of Seismicity Following the 24 August 2016, M W = 6.0, Amatrice (Central Italy) Earthquake

2017 ◽  
Vol 174 (10) ◽  
pp. 3663-3672 ◽  
Author(s):  
Vincenzo Convertito ◽  
Raffaella De Matteis ◽  
Nicola Alessandro Pino
Keyword(s):  
Central Italy ◽  
Dynamic Triggering ◽  
Central Italy Earthquake

scholarly journals Near-Source Simulation of Strong Ground Motion in Amatrice Downtown Including Site Effects

Geosciences ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 186
Author(s):  
Alessandro Todrani ◽  
Giovanna Cultrera
Keyword(s):  
Ground Motion ◽  
Site Effects ◽  
Central Italy ◽  
Strong Motion ◽  
Seismic Source ◽  
Spectral Ratio ◽  
Intensity Measures ◽  
Standard Spectral Ratio ◽  
Heavy Damage ◽  
Strong Ground

On 24 August 2016, a Mw 6.0 earthquake started a damaging seismic sequence in central Italy. The historical center of Amatrice village reached the XI degree (MCS scale) but the high vulnerability alone could not explain the heavy damage. Unfortunately, at the time of the earthquake only AMT station, 200 m away from the downtown, recorded the mainshock, whereas tens of temporary stations were installed afterwards. We propose a method to simulate the ground motion affecting Amatrice, using the FFT amplitude recorded at AMT, which has been modified by the standard spectral ratio (SSR) computed at 14 seismic stations in downtown. We tested the procedure by comparing simulations and recordings of two later mainshocks (Mw 5.9 and Mw 6.5), underlining advantages and limits of the technique. The strong motion variability of simulations was related to the proximity of the seismic source, accounted for by the ground motion at AMT, and to the peculiar site effects, described by the transfer function at the sites. The largest amplification characterized the stations close to the NE hill edge and produced simulated values of intensity measures clearly above one standard deviation of the GMM expected for Italy, up to 1.6 g for PGA.

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