Corrigendum to “An earthquake scenario for the microzonation of Sofia and the vulnerability of structures designed by use of the Eurocodes”

Paskaleva, I.; Silvia, Dimova; Panza, G. F.; Vaccari, Franco

doi:10.1016/j.soildyn.2007.08.003

Cited by 17 publications

(14 citation statements)

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“…Published historical documents prove the occurrence of destructive earthquakes during the fifteenth to eighteenth centuries in the Sofia region (WATZOV, 1902) and the largest earthquakes are those which occurred in 1818 with epicentral intensity I o = VIII-IX MSK-64, in 1858 with I o = IX-X (near Sofia), and in 1905 with M *6.5 (near the town of Trun in the western marginal part of the Sofia region). The epicentral macroseismic intensity, I o * X, summarising the heavy destruction in the town of Sofia in 1858, was first evaluated on the MSK64 scale (PETKOV and CHRISTOSKOV, 1965a, b) and updated later on the EMS98 scale (PASKALEVA et al, 2007). Here and in the following text, when non-integer values for the epicentral intensity are reported in the literature we use the symbol * followed by an integer.…”

Section: The Earthquake Recordmentioning

confidence: 99%

“…The last attempts at a SHA via seismic wave propagation modelling for the purpose of seismic microzonation of Sofia and vulnerability estimation of the built stock (PASKALEVA, 2002;SLAVOV et al, 2004;PASKALEVA, 2003;PASKALEVA et al, 2007PASKALEVA et al, , 2008DINEVA et al, 2008 ) made use of an advanced innovative, scenario based NDSHA procedure . DINEVA and PASKALEVA (2008) present a hybrid method, combining modal summation and boundary integral equations (MS-BIEM) for site-response estimation, using idealized 2D symmetric models.…”

Section: Seismic Hazard Assessment (Sha) and Seismic Microzonation Stmentioning

confidence: 99%

“…The synthetic ground motion database (PASKALEVA et al, 2007) contains more than 2,700 signals, which have been grouped in three ranges of epicentral distances: 10-12, 12-16, and 16-20 km. For each group, mean ground motion spectral quantities are computed.…”

Section: The Ndsha Procedure: Construction Of the Synthetic Strong-momentioning

confidence: 99%

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Some Contributions of the Neo-Deterministic Seismic Hazard Assessment Approach to Earthquake Risk Assessment for the City of Sofia

Paskaleva¹,

Kouteva-Guentcheva²,

Vaccari

et al. 2010

Pure Appl. Geophys.

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This paper describes the outcome of the advanced seismic hazard and seismic risk estimates recently performed for the city of Sofia, based on the state-of-the-art of knowledge for this site. Some major results of the neo-deterministic, scenario-based, seismic hazard assessment approach (NDSHA) to the earthquake hazard assessment for the city of Sofia are considered. Further validations of the recently constructed synthetic strong motion database, containing site and seismic source-specific ground motion time histories are performed and discussed. Displacement and acceleration response spectra are considered. The elastic displacement response spectra and displacement demand are discussed with regard to earthquake magnitude, seismic source-to-site distance, seismic source mechanism, and local geological site conditions. The elastic response design spectrum from the standard pseudo-acceleration, versus natural period, T n , format, converted to a capacity diagram in S a -S d format is discussed in the perspective of the Eurocode 8 provisions. A brief overview of the engineering applications of the seismic demand obtained making use of the NDSHA is supplied. Some applications of the outcome of NDSHA procedure for engineering purposes are shown. The obtained database of ground shaking waveforms and time-histories, computed for city of Sofia is used to: (1) extract maximum particle velocities; (2) calculate the space distribution of the horizontal strain factor Log 10 e; (3) estimate liquefaction susceptibility in terms of standard penetration test, N values, and initial over burden stress; (4) estimate damage index distribution; and (5) map the distribution of the expected pipe breaks and red-tagged buildings for given scenario earthquakes, etc. The theoretically obtained database, based on the simultaneous treatment of the data from many disciplines, contains data fully suitable for practical use. The proper use of this database can lead to a significant seismic vulnerability reduction and thus contributes to earthquake preparedness.

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Section: The Earthquake Recordmentioning

confidence: 99%

Section: Seismic Hazard Assessment (Sha) and Seismic Microzonation Stmentioning

confidence: 99%

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Some Contributions of the Neo-Deterministic Seismic Hazard Assessment Approach to Earthquake Risk Assessment for the City of Sofia

Paskaleva¹,

Kouteva-Guentcheva²,

Vaccari

et al. 2010

Pure Appl. Geophys.

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“…Hence, NDSHA does not make use of ground motion prediction equations (GMPEs), which do not preserve the tensor nature of earthquake ground motion (as shown by Paskaleva et al, 2007). Contrary to probabilistic seismic hazard assessment (PSHA), this approach does not rely on the statistical characterisation of earthquake recurrence, which is severely restricted by the available observations.…”

Section: Introductionmentioning

confidence: 99%

Broadband NDSHA computations and earthquake ground motion observations for the Italian territory

Magrin

Gusev

Romanelli

et al. 2016

IJEIE

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Abstract:The aim of this work is two-fold: 1) to compare the results of national scale NDSHA modelling for the Italian region at 10 Hz cut-off, based on the relevant available knowledge, with observations (e.g., peak ground motion values) and existing empirical attenuation relations; 2) to update the scaling law for source spectra (SLSS) to be used for the selected area. The new set of source spectra, defined along the lines suggested by the comparison with empirical attenuation relations, produces acceptable results in terms of PGV and spectral acceleration at long periods. Synthetic PGA and SA at short periods show a faster attenuation with respect to the observed ones and, therefore, the effect of complex attenuation factors should be explored in future ad hoc studies.

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“…Kobe (17.1.1995), Gujarat (26.1.2001), Bam (26.12.2003) and Port-au-Prince (12.1.2010) prove once more that for the urban areas to be safe and sustainable, a long-range urban planning must be implemented, based on multidisciplinary risk assessment tools. The challenge of urban susceptibility mapping is to predict the ground motion effects related to various sources, path and site characteristics not just at a single site but over an extended region, and to do so with an acceptable level of reliability (Paskaleva et al, 2007). Nowadays, efforts are focused on expanding the spatial approach to organizing residential and urban areas in regional dimensions (Clark et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Earthquake Vulnerability Zonation of Mashhad Urban Fabric by Combining the Quantitative Models in GIS, Northeast of Iran

Daneshvar¹

2013

IJEPP

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Abstract:In this study, we determined vulnerability levels of urban fabrics against earthquake risk using spatial factors.Therefore to classify risk vulnerability zones of the Mashhad urban fabric we used parameters such as ratio of open spaces, size of lands differentiation, population density, occupied area by buildings, age of buildings, deteriorated urban fabrics, proximity to faults, and seismic grading. These parameters are derived based on Mashhad municipality districts then weighted by Analytic Hierarchy Process (AHP) and combined by the Standard Score Model in geographic information system (GIS). The results indicated that: first, the central district and districts of eight, three and four in Mashhad have the most fabric vulnerability against earthquakes, respectively. Second, the urban texture of municipal districts containing districts of nine, seven, six and ten have less vulnerability against earthquakes, respectively. Third, the parameters analysis using AHP exhibited the weighty value for lands differentiation parameter while, the correlation test revealed that the strong correlation between deteriorated urban fabrics and the final zoning map (R 2 equal to 0.75).

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Corrigendum to “An earthquake scenario for the microzonation of Sofia and the vulnerability of structures designed by use of the Eurocodes”

Cited by 17 publications

References 0 publications

Some Contributions of the Neo-Deterministic Seismic Hazard Assessment Approach to Earthquake Risk Assessment for the City of Sofia

Some Contributions of the Neo-Deterministic Seismic Hazard Assessment Approach to Earthquake Risk Assessment for the City of Sofia

Broadband NDSHA computations and earthquake ground motion observations for the Italian territory

Earthquake Vulnerability Zonation of Mashhad Urban Fabric by Combining the Quantitative Models in GIS, Northeast of Iran

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