OF2006-01: Loss-estimation Modeling of Earthquake Scenarios for Each County in Nevada Using HAZUS-MH PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download OF2006-01: Loss-estimation Modeling of Earthquake Scenarios for Each County in Nevada Using HAZUS-MH PDF full book. Access full book title OF2006-01: Loss-estimation Modeling of Earthquake Scenarios for Each County in Nevada Using HAZUS-MH by Ronald H. Hess. Download full books in PDF and EPUB format.
Author: Ronald H. Hess
Publisher: NV Bureau of Mines & Geology
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 517
Get Book
Book Description
Author: Ronald H. Hess
Publisher: NV Bureau of Mines & Geology
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 517
Get Book
Book Description
Author: Rui Chen
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 86
Get Book
Book Description
Author: Johnathan G. Price
Publisher:
ISBN:
Category : Earthquake damage
Languages : en
Pages : 46
Get Book
Book Description
"This report estimates losses from earthquakes that could occur near thirty-eight Nevada communities, including all county seats and major population centers. The report uses the Federal Emergency Management Agency’s sophisticated loss-estimation computer model, HAZUS-MH, to estimate such factors as total economic loss, numbers of buildings receiving extensive to complete damage, number of people needing public shelter and hospital care, and number of fatalities from earthquakes of magnitude 5.0, 5.5, 6.0, 6.5, and 7.0. The report also tabulates earthquake probabilities for these communities from the U.S. Geological Survey’s probabilistic seismic hazard analysis."--Page 2
Author: Federal Emergency Agency
Publisher: FEMA
ISBN:
Category :
Languages : en
Pages : 66
Get Book
Book Description
Recent earthquakes around the world show a pattern of steadily increasing damages and losses that are due primarily to two factors: (1) significant growth in earthquake-prone urban areas and (2) vulnerability of the older building stock, including buildings constructed within the past 20 years. In the United States, earthquake risk has grown substantially with development while the earthquake hazard has remained relatively constant. Understanding the hazard requires studying earthquake characteristics and locales in which they occur while understanding the risk requires an assessment of the potential damage to the built environment and to the welfare of people - especially in high risk areas. Estimating the varying degree of earthquake risk throughout the United States is useful for informed decision-making on mitigation policies, priorities, strategies, and funding levels in the public and private sectors. For example, potential losses to new buildings may be reduced by applying seismic design codes and using specialized construction techniques. However, decisions to spend money on either of those solutions require evidence of risk. In the absence of a nationally accepted criterion and methodology for comparing seismic risk across regions, a consensus on optimal mitigation approaches has been difficult to reach. While there is a good understanding of high risk areas such as Los Angeles, there is also growing recognition that other regions such as New York City and Boston have a low earthquake hazard but are still at high risk of significant damage and loss. This high risk level reflects the dense concentrations of buildings and infrastructure in these areas constructed without the benefit of modern seismic design provisions. In addition, mitigation policies and practices may not have been adopted because the earthquake risk was not clearly demonstrated and the value of using mitigation measures in reducing that risk may not have been understood. This study highlights the impacts of both high risk and high exposure on losses caused by earthquakes. It is based on loss estimates generated by HAZUS(R)-MH, a geographic information system (GIS)-based earthquake loss estimation tool developed by the Federal Emergency Management Agency (FEMA) in cooperation with the National Institute of Building Sciences (NIBS). The HAZUS tool provides a method for quantifying future earthquake losses. It is national in scope, uniform in application, and comprehensive in its coverage of the built environment.
Author: Loren Wimmer
Publisher:
ISBN:
Category :
Languages : en
Pages : 134
Get Book
Book Description
Author: Andrew Kary Mehdi Assadollahi
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book
Book Description
A study of buildings in Shelby County, Tennessee and Tipton County, Tennessee was conducted using a sidewalk survey procedure developed by the Federal Emergency Management Agency (FEMA), known as a Rapid Visual Survey (RVS). Its purpose is to identify buildings that are potentially at risk to a seismic event. A database of these buildings was generated from the data gathered in the RVS procedure. A loss estimation program developed by FEMA, known as HAZUS-MH MR3, was used to perform a more detailed analysis on the structures utilizing user defined ground motion maps. A rank of the structures was developed based upon the RVS procedure and the HAZUS output.FEMA developed HAZUS-MH MR3 which estimates structural and non-structural losses for a variety of hazards. In this study, three earthquake scenarios were analyzed: a magnitude 6.5 earthquake based upon site-specific ground motion maps, a magnitude 7.7 earthquake based upon site-specific ground motion maps, and a magnitude 7.7 earthquake based upon ground motion maps provided by the United States Geological Survey (USGS). All of these ground motion maps simulate a desired earthquake scenario to perform a loss estimate of the buildings; however, the site-specific, user-supplied maps have many more unique ground motion parameters than the USGS maps. HAZUS provides loss estimates by computing damage state probabilities for each building. One objective of this research is to develop a prioritization of the structures based upon building performance from the HAZUS loss estimate and the RVS procedure, which has a possible application to air emergency planners in selecting suitable locations to be used as mass population shelters in the case of a seismic event. The second objective of this research is to assess how well the RVS procedure performs in identifying structures which may be seismically at risk as compared to the HAZUS output by performing a statistical analysis and hypothesis testing on the data. The results of this objective can be utilized in determining if the RVS procedure is suitable for the seismic evaluation of structures or it a more detailed, site specific analysis should be performed using hazard software like HAZUS. The third objective is to investigate how the building type and the construction time period of structures affect the results of HAZUS and the RVS using statistical analysis. The results of the third objective can help in determining which construction materials perform better in a seismic event, which can have structural design applications for regions of high seismicity. The last objective is to examine how the effects of site specific ground motion maps compare with those provided by the USGS, in HAZUS loss estimates. .
Author: Mid-America Earthquake Center
Publisher:
ISBN:
Category : Earthquakes
Languages : en
Pages : 139
Get Book
Book Description
The information presented in this report has been developed to support the Catastrophic Earthquake Planning Scenario workshops held by the Federal Emergency Management Agency. Four FEMA Regions (Regions IV, V, VI and VII) were involved in the New Madrid Seismic Zone (NMSZ) scenario workshops. The four FEMA Regions include eight states, namely Illinois, Indiana, Kentucky, Tennessee, Alabama, Mississippi, Arkansas and Missouri. The earthquake impact assessment presented hereafter employs an analysis methodology comprising three major components: hazard, inventory and fragility (or vulnerability). The hazard characterizes not only the shaking of the ground but also the consequential transient and permanent deformation of the ground due to strong ground shaking as well as fire and flooding. The inventory comprises all assets in a specific region, including the built environment and population data. Fragility or vulnerability functions relate the severity of shaking to the likelihood of reaching or exceeding damage states (light, moderate, extensive and near-collapse, for example). Social impact models are also included and employ physical infrastructure damage results to estimate the effects on exposed communities. Whereas the modeling software packages used (HAZUS MR3; FEMA, 2008; and MAEviz, Mid-America Earthquake Center, 2008) provide default values for all of the above, most of these default values were replaced by components of traceable provenance and higher reliability than the default data, as described below. The hazard employed in this investigation includes ground shaking for a single scenario event representing the rupture of all three New Madrid fault segments. The NMSZ consists of three fault segments: the northeast segment, the reelfoot thrust or central segment, and the southwest segment. Each segment is assumed to generate a deterministic magnitude 7.7 (Mw7.7) earthquake caused by a rupture over the entire length of the segment. US Geological Survey (USGS) approved the employed magnitude and hazard approach. The combined rupture of all three segments simultaneously is designed to approximate the sequential rupture of all three segments over time. The magnitude of Mw7.7 is retained for the combined rupture. Full liquefaction susceptibility maps for the entire region have been developed and are used in this study. Inventory is enhanced through the use of the Homeland Security Infrastructure Program (HSIP) 2007 and 2008 Gold Datasets (NGA Office of America, 2007). These datasets contain various types of critical infrastructure that are key inventory components for earthquake impact assessment. Transportation and utility facility inventories are improved while regional natural gas and oil pipelines are added to the inventory, alongside high potential loss facility inventories. The National Bridge Inventory (NBI, 2008) and other state and independent data sources are utilized to improve the inventory. New fragility functions derived by the MAE Center are employed in this study for both buildings and bridges providing more regionally-applicable estimations of damage for these infrastructure components. Default fragility values are used to determine damage likelihoods for all other infrastructure components. The study reports new analysis using MAE Center-developed transportation network flow models that estimate changes in traffic flow and travel time due to earthquake damage. Utility network modeling was also undertaken to provide damage estimates for facilities and pipelines. An approximate flood risk model was assembled to identify areas that are likely to be flooded as a result of dam or levee failure. Social vulnerability identifies portions of the eight-state study region that are especially vulnerable due to various factors such as age, income, disability, and language proficiency. Social impact models include estimates of displaced and shelter-seeking populations as well as commodities and medical requirements. Lastly, search and rescue requirements quantify the number of teams and personnel required to clear debris and search for trapped victims. The results indicate that Tennessee, Arkansas, and Missouri are most severely impacted. Illinois and Kentucky are also impacted, though not as severely as the previous three states. Nearly 715,000 buildings are damaged in the eight-state study region. About 42,000 search and rescue personnel working in 1,500 teams are required to respond to the earthquakes. Damage to critical infrastructure (essential facilities, transportation and utility lifelines) is substantial in the 140 impacted counties near the rupture zone, including 3,500 damaged bridges and nearly 425,000 breaks and leaks to both local and interstate pipelines. Approximately 2.6 million households are without power after the earthquake. Nearly 86,000 injuries and fatalities result from damage to infrastructure. Nearly 130 hospitals are damaged and most are located in the impacted counties near the rupture zone. There is extensive damage and substantial travel delays in both Memphis, Tennessee, and St. Louis, Missouri, thus hampering search and rescue as well as evacuation. Moreover roughly 15 major bridges are unusable. Three days after the earthquake, 7.2 million people are still displaced and 2 million people seek temporary shelter. Direct economic losses for the eight states total nearly $300 billion, while indirect losses may be at least twice this amount. The contents of this report provide the various assumptions used to arrive at the impact estimates, detailed background on the above quantitative consequences, and a breakdown of the figures per sector at the FEMA region and state levels. The information is presented in a manner suitable for personnel and agencies responsible for establishing response plans based on likely impacts of plausible earthquakes in the central USA.
Author:
Publisher: National Academies Press
ISBN:
Category : Buildings
Languages : en
Pages : 98
Get Book
Book Description
Author: Committee On Earthquake Engineering Panel on Earthquake Loss Estimation Methodology
Publisher: National Academies Press
ISBN:
Category : Nature
Languages : en
Pages : 247
Get Book
Book Description
Author:
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 140
Get Book
Book Description
