A comprehensive seismic risk assessment map of South Korea based on seismic, geotechnical, and social vulnerability

2022 ◽  
Vol 81 (1) ◽  
Author(s):  
Seonyoung Lee ◽  
Seokhoon Oh
Keyword(s):  
Risk Assessment ◽  
South Korea ◽  
Social Vulnerability ◽  
Seismic Risk ◽  
Seismic Risk Assessment

scholarly journals Comprehensive seismic risk assessment map of South Korea developed using seismic, geotechnical, and social vulnerability indicators

2021 ◽  
Author(s):  
Seonyoung Lee ◽  
Seokhoon Oh
Keyword(s):  
Risk Assessment ◽  
South Korea ◽  
Social Vulnerability ◽  
Seismic Risk ◽  
Seismic Risk Assessment ◽  
Spatial Continuity ◽  
The Social ◽  
Vulnerability Indicators ◽  
Bedrock Depth ◽  
Vulnerability Indicator

Abstract At present, because it is not possible to predict earthquakes, disaster preparedness is vital for the reduction of damages. The awareness about earthquakes has substantially increased after the occurrence of two >M L 5 events in 2016 and 2017 in South Korea. This study presents the seismic risk assessment conducted for the entire country of South Korea. This assessment was performed using seismic, geotechnical, and social vulnerability indicators. The seismic vulnerability indicator was estimated using a probabilistic seismic hazard and fault-line density map that are directly related to the occurrence of earthquakes. The geotechnical vulnerability indicator was derived using bedrock depth data and extrapolation of digital elevation model data through geostatistical techniques. The seismic and geotechnical indicators were integrated based on the bedrock depth distribution. The social vulnerability indicator considered the distribution of relevant parameters such as vulnerable people, old houses, and road information. These statistical data without spatial continuity were incorporated into a map using principal component analysis. A five-grade classification of risks presented by the seismic and geotechnical vulnerability map and the social vulnerability index map was developed to facilitate simultaneous assessment. A risk matrix was applied to the two maps to produce a comprehensive seismic risk assessment map of South Korea, in which the southeastern and northwestern regions of South Korea present a high seismic risk. The results of this study will serve toward seismic risk management and minimize seismic disaster damages in South Korea.

Combining hazard, social vulnerability and resilience to provide a proposal for seismic risk assessment

2019 ◽  
Vol 23 (9) ◽  
pp. 1225-1241
Author(s):  
Oscar Luigi Azzimonti ◽  
Matteo Colleoni ◽  
Mattia De Amicis ◽  
Ivan Frigerio
Keyword(s):  
Risk Assessment ◽  
Social Vulnerability ◽  
Seismic Risk ◽  
Seismic Risk Assessment

scholarly journals Integrated Seismic Risk Assessment in Nepal

2022 ◽  
Author(s):  
Sanish Bhochhibhoya ◽  
Roisha Maharjan
Keyword(s):  
Risk Assessment ◽  
Social Vulnerability ◽  
Seismic Risk ◽  
Exposure Model ◽  
Earthquake Risk ◽  
Seismic Risk Assessment ◽  
True Nature ◽  
Average Annual Loss ◽  
Physical Risk ◽  
Vulnerability Score

Abstract. As Nepal is at high risk of earthquakes, the district-wide (VDC/Municipality level) study has been performed for vulnerability assessment of seismic-hazard, and the hazard-risk study is incorporated with social conditions as it has become a crucial issue in recent years. There is an interrelationship between hazards, physical risk, and the social characteristics of populations which are significant for policy-makers and individuals. Mapping the spatial variability of average annual loss (seismic risk) and social vulnerability discretely does not reflect the true nature of parameters contributing to the earthquake risk, so when the integrated risk is mapped, such combined spatial distribution becomes more evident. The purpose of this paper is to compute the risk analysis from the exposure model of the country using OpenQuake and then integrate the results with socio-economic parameters. The methodology of seismic-risk assessment and the way of combining the results of the physical risk and socio-economic data to develop an integrated vulnerability score of the regions has been described. This study considers all 75 districts and corresponding VDC/Municipalities using the available census. The combined vulnerability score has been developed and presented by integrating earthquake risk and social vulnerability aspects of the country and represented in form of the map produced using ArcGIS 10. The knowledge and information of the relationship between earthquake hazards and the demographic characteristics of the population in the vulnerable area are imperative to mitigate the local impact of earthquakes. Therefore, we utilize social vulnerability study as part of a comprehensive risk management framework to recuperate and recover from natural disasters.

SEISMIC RISK ASSESSMENT AND REDUCTION IN ITALY

2019 ◽  
Vol 1 (Special Issue on First SACEE'19) ◽  
pp. 55-75
Author(s):  
Fabio Sabetta
Keyword(s):  
Risk Assessment ◽  
Seismic Risk ◽  
Safety Assessment ◽  
Public Funding ◽  
Tax Incentives ◽  
Technical Training ◽  
Disaster Prevention ◽  
Existing Buildings ◽  
Seismic Risk Assessment ◽  
Post Disaster

In this paper, the main features of the policies adopted in Italy for seismic risk reduction are discussed. Particular attention is given to the Pre-disaster prevention activities such as the implementation of the building code, the seismic risk assessment for a priority scale of intervention, tax incentives and public funding for the vulnerability reduction of the existing buildings, information to population and school education, technical training of experts. The phases of response and post-disaster activities, including emergency management, search and rescue, loss scenarios, and safety assessment of buildings, are also discussed taking example from the most recent devastating earthquakes in Italy (L.Aquila 2009, Amatrice 2016).

SEISMIC RISK ASSESSMENT AND MITIGATION FOR THE EXISTING LIFELINE

2011 ◽  
Vol 05 (01) ◽  
pp. 31-45 ◽  
Author(s):  
T. IMAI ◽  
S. WADA ◽  
T. KOIKE
Keyword(s):  
Risk Assessment ◽  
Seismic Risk ◽  
Water Distribution ◽  
Water Distribution Network ◽  
Assessment Method ◽  
Disaster Mitigation ◽  
Seismic Retrofitting ◽  
Network System ◽  
Investment Strategies ◽  
Seismic Risk Assessment

In order to keep the existing lifeline network system at a favorable seismic performance level, it is necessary to carry out retrofitting activities. This study proposes a seismic risk assessment method for the existing deteriorated lifeline network system based on the probability of system performance failure. Numerical simulations are carried out for the existing water distribution network system for several seismic investment strategies to support the decision making of seismic disaster mitigation planning. Effective planning of seismic retrofitting activities and disaster mitigation for the existing lifeline system can be realized using the newly developed assessment method.

Towards Near-Real-Time Damage Estimation Using a CSM-Based Tool for Seismic Risk Assessment

2008 ◽  
Vol 12 (sup2) ◽  
pp. 199-210 ◽  
Author(s):  
Dominik H. Lang ◽  
Sergio Molina-Palacios ◽  
Conrad D. Lindholm
Keyword(s):  
Risk Assessment ◽  
Real Time ◽  
Seismic Risk ◽  
Damage Estimation ◽  
Seismic Risk Assessment
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