Impact data bases application for natural and technological risk management

Frolova, Nina; Larionov, Valery; Bonnin, J. G.; Suchshev, Sergey P.; Ugarov, Alexander; Malaeva, Nataliya

doi:10.5194/nhess-2019-264

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…The S-wave velocity reflects changes in the most upper ground layer and is an essential element included in most seismic hazard and risk assessment software packages (Including HAZUS, EMERCOM, etc.) (Frolova et al, 2019). The determination of Vs_30 for seismic microzonation, seismic hazard and risk assessment, and assessment of vulnerability of structures, proves challenging in densely populated urban areas.…”

Section: Introductionmentioning

confidence: 99%

Determination of Vs_30 from existing geophysical investigation data

Ranguelov¹,

Borg²,

Spassov³

et al. 2023

Eng. Geol. and Hydrogeol.

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The Vs_30 refers to the velocity of transversal seismic waves in the upper earth crust (surface shallow depths) in the 0-30 m interval. This parameter reflects the integral ground properties and is used in almost all seismic hazard assessment software. The determination of Vs_30 is important, especially in the case of urban territories, where in-situ measurements are very difficult and sometimes impossible due to dense urban areas, large anthropogenic noise and the need of expensive boreholes. The paper presents a methodology for extracting necessary data and information from archival sources, mainly geophysical measurements frequently executed for different prospecting purposes. The methodology for assessment of the integral values of Vs_30 is proposed for the definition of seismic hazard maps in Bulgaria. The methodology proposed, based primarily on archive data, represents an effective approach with significant results, especially for the intensive urbanized town territories located in high seismic areas.

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Section: Introductionmentioning

confidence: 99%

Determination of Vs_30 from existing geophysical investigation data

Ranguelov¹,

Borg²,

Spassov³

et al. 2023

Eng. Geol. and Hydrogeol.

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Updated indicators of seismic risk for the territory of the Irkutsk region and the Republic of Buryatia

Frolova

Suchshev

Ugarov

et al. 2023

RJS

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For all earthquake prone countries, including the Russian Federation, seismic risk assessment is periodically updated. The need for updating is increasing due to changes in assessments of hazard level and vulnerability properties of the elements at risk. For the earthquake prone regions of the Russian Federation classified as the priority development zones, risk indicators updating should increase the effectiveness of preventive measures implementation aimed at risk reduction. Calculations show that the development of risk maps, as well as the subsequent planning and implementation of preventive measures tied to the place marked on the map as the most dangerous, can reduce possible social and economic losses by 20-30%. The article describes the issues of updating seismic risk indicators for the territory of the Irkutsk region and the Republic of Buryatia. For the considered areas, which are included in the advanced development program, the actual values of seismic hazard and building vulnerability were used. The procedure for assessing and mapping risk indicators with the geographic information system “Extremum” application is given. Examples of thematic maps are presented, illustrating rather high estimates of individual risk for 6% of the territory of the Irkutsk region and 39% of the territory of the Republic of Buryatia. The results of the study indicate the need and importance of ensuring the seismic safety of the population in the framework of planning measures for the advanced development of territories.

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Impact data bases application for natural and technological risk management

Cited by 2 publications

References 4 publications

Determination of Vs_30 from existing geophysical investigation data

Determination of Vs_30 from existing geophysical investigation data

Updated indicators of seismic risk for the territory of the Irkutsk region and the Republic of Buryatia

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