scholarly journals Four years after the catastrophe, are educational institutions in the Region of Murcia in Spain prepared for the next seismic disaster?

2020 ◽  
pp. 155-174
Author(s):  
Sophie Mendizabal
Keyword(s):  
Seismic Risk ◽  
Vulnerability Index ◽  
Mitigation Measures ◽  
Educational Institutions ◽  
Moderate Earthquake ◽  
Earthquake Resistant ◽  
Factores De Riesgo ◽  
Structural Risk ◽  
Surface Geomorphology ◽  
Seismic Disaster

Un terremoto de magnitud 6.0 o más está esperado en la falla Alhama de Murcia, la más activa de la región de Murcia, localizada en el sureste de España. El 11 de Mayo de 2011, en un intervalo de una hora y 42 minutos, dos terremotos de magnitud 4.5 y 5.1 sacuden las ciudades deLorca y Totana, resultando en nueve fatalidades y 330 heridos. Sin embargo, cuatro años después de la catástrofe, estas ciudades no parecen estar preparadas a hacer frente a un terremoto de magnitud moderada. Todos los factores están combinados para terminar en una catástrofe es decir, una superficie geomorfológica que favorece los efectos de sitio, construcciones que no cumplen con las normas parasísmicas y la falta de conocimiento sobre el riesgo sísmico por parte de la población. Este estudio propone unanálisis del nivel de vulnerabilidad de los centros educacionales contra el riesgo sísmico en Lorca y Totana basado en la creación de un índice de vulnerabilidad considerando los factores de riesgo sociales y estructurales. Además propone una serie de medidas de mitigación para hacer frenteal próximo desastre sísmico mayor. A magnitude 6.0 or more earthquake is expected on the Alhama de Murcia fault, the most active in the area of Murcia, located in the south-eastern Spain. On May 11th 2011, within one hour and 42 minutes period, a magnitude 4.5 and a magnitude 5.1 earthquakes shake the towns of Lorca and Totana, killing nine people and injuring 330. However, four years after the catastrophe, these towns do not seem to be prepared to face a moderate earthquake. All elements are gathered to result in a disaster, i.e. a surface geomorphology conducive for site effects, constructions which do not comply the earthquake-resistant requirements and a lack of knowledge from the population about the seismic risk. This report proposes an analysis of the level of vulnerability of educational institutions against the seismic risk in Lorca and Totana based on creating a vulnerability index which considers social and structural risk factors. As well as a series of mitigation measures proposals to face the next major seismic disaster.

scholarly journals Earthquake and tsunami potential levels in Sulawesi (lesson learned earthquake West Sulawesi)

2021 ◽  
Vol 331 ◽  
pp. 07005
Author(s):  
Rio Khoirudin Apriyadi ◽  
Sobar Sutisna ◽  
Lasmono ◽  
Riskina Tri Januarti
Keyword(s):  
Seismic Vulnerability ◽  
Descriptive Analysis ◽  
Secondary Data ◽  
Soil Classification ◽  
Vulnerability Index ◽  
Tsunami Waves ◽  
Earthquake Resistant ◽  
Negative Impacts ◽  
Recovery Program ◽  
Post Disaster

Earthquake and tsunami disasters always bring negative impacts and losses for humans. The high frequency of earthquake disasters in Sulawesi and the massive impact of destruction and damage to infrastructure, loss of homes and property, and death of people are partly due to the lack of knowledge of this potential disaster by the surrounding community. Therefore, it is necessary to study the potential for earthquake and tsunami disasters on Sulawesi Island, and Lesson Learned about the Earthquake Disaster that has occurred in past. This study uses a qualitative method with a descriptive analysis design of secondary data obtained through a comprehensive literature review. The results showed that Sulawesi Island has a high potential for earthquake disasters, which is in the historical records of disasters, some of these earthquakes were accompanied by tsunami waves. The lesson that can be drawn from the earthquake in West Sulawesi is the potential for aftershocks after the opening earthquake and the main earthquake. In addition, the urgency of building earthquake-resistant housing structural mitigation is the key to safety during an earthquake. The post-earthquake recovery program in West Sulawesi requires further studies related to soil classification surveys, soil dominant periods, and soil seismic vulnerability index, as part of rebuilding a better and safer post-disaster area.

scholarly journals State of the art of seismic risk and loss assessment in structures

2021 ◽  
Vol 331 ◽  
pp. 07013
Author(s):  
Riza Aryanti ◽  
Masrilayanti Masrilayanti
Keyword(s):  
Seismic Hazard ◽  
Seismic Risk ◽  
Stable Region ◽  
Loss Assessment ◽  
Sunda Shelf ◽  
Human Safety ◽  
Depth Analysis ◽  
Literature Reviews ◽  
History Of ◽  
Seismic Disaster

Earthquakes are known as one of the disasters that have fatal consequences for human safety. However, inevitably, the earthquake itself is not the leading cause of the losses suffered by humans, both material and soul. The most powerful thing in human safety is infrastructure such as buildings, bridges, and houses. Therefore, an in-depth analysis of the risk factors that the infrastructure will experience in a natural disaster is needed. There is a variable seismic hazard in the Southeast Asia region, ranging from high seismic hazard allied with the underneath of the Indonesian and Philippine archipelagos to moderate and low seismic tremors associated with a sizeable stable region on the Sunda Shelf. This paper describes the history of seismic risk and loss assessment of infrastructures. The method used is by doing literature reviews of the most recent research relating to seismic risk and assessment around the world. More than fifteen research results are studied and discussed to get a deep knowledge about seismic risk and the assessment of loss due to seismic disaster.

Cost-Benefit Analysis of Seismic Mitigation Measures for Wine Barrel Stacks

2018 ◽  
Vol 34 (1) ◽  
pp. 283-299
Author(s):  
Miguel A. Jaimes ◽  
Gabriel Candia ◽  
Philomène Favier
Keyword(s):  
Seismic Risk ◽  
Performance Metrics ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Mitigation Strategies ◽  
Wine Industry ◽  
Mitigation Measures ◽  
Illustrative Case ◽  
Benefit Analysis ◽  
Benefit Cost

This study conducts a cost-benefit analysis of alternative seismic risk mitigation methods for wine barrel stacks. The Chilean wine industry is presented as an illustrative case study in which performance metrics, such as the expected annual loss (EAL) and benefit-cost ratios, are computed for wineries at different locations. By computing seismic risk within a consistent framework, this study shows the value of cost-benefit simulations for defining the best mitigation strategies and allocating economic resources. Likewise, this approach helps communicate information to decision makers because it is presented in a simple and transparent way, even if they are not familiar with formal risk studies. For three-level wine barrel stacks, it was observed that the Cradle Extender® (MS1) prevents a large number of barrel collapses and provides the highest benefit-cost ratio. On the other hand, for six-level wine barrel stacks, the prestressed cable (MS2) is more effective than MS1 as it prevents the barrel stack from overturning. No significant loss reduction is apparent in four- and five-level wine barrel stacks with the use of mitigation strategies; indeed, the mitigation strategies could generate greater losses and, therefore, other alternatives must be proposed.

scholarly journals Vulnerability Analysis of the Venetian Littoral and Adopted Mitigation Strategy

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 984 ◽  
Author(s):  
Piero Ruol ◽  
Luca Martinelli ◽  
Chiara Favaretto
Keyword(s):  
Vulnerability Index ◽  
Mitigation Strategy ◽  
Mitigation Measures ◽  
Veneto Region ◽  
Priority Level ◽  
Urbanization Level ◽  
Flooding Hazards ◽  
Critical Issues ◽  
A Priority ◽  
Key Aspects

This paper discusses the key aspects of the recent Coastal Plan of the Veneto Region (IT). Its aim is to propose a single mitigation strategy for coastal erosion that is valid for the whole Veneto Region, and possibly elsewhere, as well as a method to assign a priority level to any action. The suggested mitigation action against erosion depends on urbanization level, beach width, as well as cross-shore and long-shore sediment transport. The criterion used to give a priority level to mitigation actions is based on a vulnerability index that takes into account erosive tendency, existing coastal flooding hazards, coast value, environmental relevance, tourist pressure, urbanization level, the presence of production activities, and cultural heritage. A sample case featuring the littoral of Rosolina is also provided and includes a site description, the sediment budget, critical issues and possible mitigation measures.

scholarly journals Construction of an integrated social vulnerability index in urban areas prone to flash flooding

2017 ◽  
Vol 17 (9) ◽  
pp. 1541-1557 ◽  
Author(s):  
Estefania Aroca-Jimenez ◽  
Jose Maria Bodoque ◽  
Juan Antonio Garcia ◽  
Andres Diez-Herrero
Keyword(s):  
Social Vulnerability ◽  
Urban Areas ◽  
Latent Class ◽  
Methodological Approach ◽  
Vulnerability Index ◽  
Mitigation Measures ◽  
Social Risk ◽  
Social Vulnerability Index ◽  
Flash Flooding ◽  
Size Limitation

Abstract. Among the natural hazards, flash flooding is the leading cause of weather-related deaths. Flood risk management (FRM) in this context requires a comprehensive assessment of the social risk component. In this regard, integrated social vulnerability (ISV) can incorporate spatial distribution and contribution and the combined effect of exposure, sensitivity and resilience to total vulnerability, although these components are often disregarded. ISV is defined by the demographic and socio-economic characteristics that condition a population's capacity to cope with, resist and recover from risk and can be expressed as the integrated social vulnerability index (ISVI). This study describes a methodological approach towards constructing the ISVI in urban areas prone to flash flooding in Castilla y León (Castile and León, northern central Spain, 94 223 km2, 2 478 376 inhabitants). A hierarchical segmentation analysis (HSA) was performed prior to the principal components analysis (PCA), which helped to overcome the sample size limitation inherent in PCA. ISVI was obtained from weighting vulnerability factors based on the tolerance statistic. In addition, latent class cluster analysis (LCCA) was carried out to identify spatial patterns of vulnerability within the study area. Our results show that the ISVI has high spatial variability. Moreover, the source of vulnerability in each urban area cluster can be identified from LCCA. These findings make it possible to design tailor-made strategies for FRM, thereby increasing the efficiency of plans and policies and helping to reduce the cost of mitigation measures.

scholarly journals Seismic risk in the city of Al Hoceima (north of Morocco) using the vulnerability index method, applied in Risk-UE project

2016 ◽  
Vol 85 (1) ◽  
pp. 329-347 ◽  
Author(s):  
Seif-eddine Cherif ◽  
Mimoun Chourak ◽  
Mohamed Abed ◽  
Luis Pujades
Keyword(s):  
Seismic Risk ◽  
Vulnerability Index ◽  
Index Method ◽  
Vulnerability Index Method ◽  
Al Hoceima ◽  
The City

scholarly journals Vulnerability Of The Garut District Region In Tarogong Kalam, Tarogong Kidul, Garut Kota, And Karang Pawitan Sub-District Based On Microtremor Measurement

2020 ◽  
Vol 11 (1) ◽  
pp. 11
Author(s):  
Rahmat Setyo Yuliatmoko
Keyword(s):  
Seismic Vulnerability ◽  
Vulnerability Index ◽  
Dominant Frequency ◽  
Mitigation Measures ◽  
Ratio Method ◽  
Tectonic Earthquake ◽  
Wave Amplification ◽  
Geological Conditions ◽  
Microtremor Measurement ◽  
The Impact

The Tasikmalaya M 7.3 earthquake on September 2, 2009 had an impact on Garut, damaged infrastructure and claimed many lives. From the search results there were five areas that were severely damaged by tectonic earthquake shocks, which included Pemeungpeuk, Cisompet, Cikelet, Peundeuy and Banjarwangi Subdistricts, so that earthquake mitigation measures were needed. One of the mitigations that can research how the impact is if the potential for earthquake disasters occur below the southern surface of Java. The final objective of this research is to map disaster-prone zones in Tarogong Kaler, Tarogong Kidul, Garut City, and Karang Pawitan, Garut Subdistrict, based on dominant frequency values, Vs30, seismic vulnerability indexes, and GSS (Ground Shear Strains) so that they can know the land movement that is. Retrieval of data in this study by measuring geophysicaly methods in the field. Processing data using HVSR (Horizontal to Vertical Spectra Ratio) method, then mapped with ArcGis to interpret the zoning of the study area. Based on the research, we known that the dominant frequency distribution value is between 1-5.2 Hz. The seismic vulnerability index values calculated the study area are between 3 – 45, GSS values in the study area between 3 ×10-4 - 42×10-4. By looking at the spatial distribution of the values of f0, Kg and GSS the areas of Karangmulya, Jatiasih, Sidanggalih and Godog villages are types of young volcanic sediments classified as soft soils that are easily to wave amplification and earthquake vibrations, so that they are easily damaged during large earthquakes. in this region qualify as earthquake resistant buildings to minimize damage and losses, while Sukabakti, Kersamenak, Sukajaya, and Mekargalih villages in the west with the geological conditions of the surrounding area which is hard land so that it will be safer when an earthquake occurs.

scholarly journals Assessment of the Socioeconomic Vulnerability to Seismic Hazards in the National Capital Region of India Using Factor Analysis

2021 ◽  
Vol 13 (17) ◽  
pp. 9652
Author(s):  
Navdeep Agrawal ◽  
Laxmi Gupta ◽  
Jagabandhu Dixit
Keyword(s):  
Seismic Hazard ◽  
Family Size ◽  
Seismic Risk ◽  
Vulnerability Index ◽  
Seismic Hazards ◽  
Eastern Region ◽  
National Capital Region ◽  
Capital Region ◽  
Socioeconomic Vulnerability ◽  
National Capital

The seismicity of the National Capital Region (NCR) of India increased significantly over the last decade. Communities in the NCR face significant exposure to damaging seismic events, and the seismic risk arises not only from the region’s proximity to the Himalayan mountains, but also from the socioeconomic vulnerabilities in its communities and the current capacities of different localities to respond to and recover from any unforeseen large seismic event. GIS-based spatial distribution of exposure to seismic hazards (SH) can help decision-makers and authorities identify locations with populations at high seismic risk, and to prepare risk-mitigation plans. Socioeconomic vulnerability (SeV) studies serve as a basis for quantifying qualitative measures. For this purpose, in the present study, the hazard of place (HoP) model is used to assess SeV to seismic hazards in the NCR. Social indicators like age, gender, literacy, family size, built environment, etc., comprising a total of 36 variables, are used to assess a socioeconomic vulnerability index (SeVI) based on factor and principal component (PCA) analyses. Based on PCA, 20 variables were retained and grouped into four factors: socioeconomic status, employment status, building typology, and family size. Ground-motion parameters, estimated from probabilistic seismic hazard assessment, are integrated with the socioeconomic vulnerability index to quantify exposure to seismic hazards. The spatial distributions in the produced socioeconomic-vulnerability index and seismic–hazard–exposure maps highlight the critical areas. The results reveal that areas of low literacy, high unemployment, and poor housing condition show moderate-to-high vulnerability. The south-eastern region of the study area is assessed as a high-risk zone by an integrated SeV–SH risk matrix. The results of this study emphasize the importance of the socioeconomic vulnerability component of disaster risk–reduction programs, from a holistic perspective, for the areas with high seismicity.

Resource Allocation Model Toward Seismic Water Pipeline Risk Mitigation Measures

2019 ◽  
Author(s):  
Elnaz Peyghaleh ◽  
Tarek Alkhrdaji
Keyword(s):  
Resource Allocation ◽  
Risk Analysis ◽  
Seismic Hazard ◽  
Seismic Risk ◽  
Distribution Systems ◽  
Risk Mitigation ◽  
Mitigation Measures ◽  
Seismic Risk Analysis ◽  
Allocation Model ◽  
Proposed Model

Abstract History of earthquake’s damages have illustrated the high vulnerability and risks associated with failure of water transfer and distribution systems. Adequate mitigation plans to reduce such seismic risks are required for sustainable development. The first step in developing a mitigation plan is prioritizing the limited available budget to address the most critical mitigation measures. This paper presents an optimization model that can be utilized for financial resource allocation towards earthquake risk mitigation measures for water pipelines. It presents a framework that can be used by decision-makers (authorities, stockholders, owners and contractors) to structure budget allocation strategy for seismic risk mitigation measures such as repair, retrofit, and/or replacement of steel and concrete pipelines. A stochastic model is presented to establish optimal mitigation measures based on minimizing repair and retrofit costs, post-earthquake replacement costs, and especially earthquake-induced large losses. To consider the earthquake induced loss on pipelines, the indirect loss due to water shortage and business interruption in the industries which needs water is also considered. The model is applied to a pilot area to demonstrate the practical application aspects of the proposed model. Pipeline exposure database, built environment occupancy type, pipeline vulnerability functions, and regional seismic hazard characteristics are used to calculate a probabilistic seismic risk for the pilot area. The Global Earthquake Model’s (GEM) OpenQuake software is used to run various seismic risk analysis. Event-based seismic hazard and risk analyses are used to develop the hazard curves and maps in terms of peak ground velocity (PGV) for the study area. The results of this study show the variation of seismic losses and mitigation costs for pipelines located within the study area based on their location and the types of repair. Performing seismic risk analysis analyses using the proposed model provides a valuable tool for determining the risk associated with a network of pipelines in a region, and the costs of repair based on acceptable risk level. It can be used for decision making and to establish type and budgets for most critical repairs for a specific region.

scholarly journals Potential Seismic Damage Assessment of Residential Buildings in Imzouren City (Northern Morocco)

Buildings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 179 ◽  
Author(s):  
Seif-eddine Cherif ◽  
Mimoun Chourak ◽  
Mohamed Abed ◽  
Abdelhalim Douiri
Keyword(s):  
Seismic Risk ◽  
Seismic Vulnerability ◽  
Residential Buildings ◽  
Site Investigation ◽  
Economic Loss ◽  
Vulnerability Index ◽  
Index Method ◽  
Vulnerability Index Method ◽  
Earthquake Scenarios ◽  
The City

The main purpose of this study is to assess seismic risk and present earthquake loss scenarios for the city of Imzouren, in northern Morocco. An empirical approach was chosen to assess the seismic vulnerability of the existing buildings, using the Vulnerability Index Method (RISK-UE), and considering two earthquake scenarios (deterministic and probabilistic). Special concern was given to the seismic vulnerability in Imzouren since the 2004 earthquake (24 February, mw = 6.4) that struck the region and caused substantial damage. A site investigation was conducted in the city targeting more than 3000 residential buildings, which had been closely examined and catalogued to assess their seismic vulnerability. The results of the seismic risk assessment in the city are represented through damage to the buildings, harm to the population and economic loss. Generally, the results obtained from the deterministic approach are in agreement with the damage caused by the 2004 earthquake.

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