Back to Bangladesh Outcomes Bangladesh Liquefaction Hazard Assessment The section "Liquefaction susceptibility and hazard assessment" discusses the inclusion of regional liquefaction occurrence models in the project, which predict ground failure using existing mapped information and above-ground inferences of below-ground conditions. These models were used for the national scale liquefaction hazard assessment in the second phase of the project identifying the factors that contribute to liquefaction, the methods used for assessment, and the potential damage and losses that can result from liquefaction. Data Download Liquefaction OpenQuake Data Event-based Annual rate of liquefaction overlaid with road network.png Annual rate of liquefaction.png job_eb_sep.ini Maps-GIS sep_Bangladesh.gpkg Output sep_Bangladesh-annual rate-nonparametric.csv sep_Bangladesh-annual rate-parametric.csv Scenarios sc_1664_N_Bang/ sc_1762_arakan/ sc_1822/ sc_1869_cachar/ sc_1885_manikganj/ sc_1897_Dauki/ sc_1918_Srimangal/ sc_chittagong_north/ sc_chittagong_thrust_smaller/ sc_sikkim_mht/ sc_western_deformation_front/ sc_western_deformation_front_partial/ 1_scenario_files.ipynb Epicentre.csv rupture_trts.csv Explanatory variable - BNG.png gmmLT_ref/ gmpe_logic_tree_ascr.xml gmpe_logic_tree_subd.xml maps/ BGD_H3/ BGD_H3_L4.gpkg BGD_H3_L5.gpkg BGD_H3_L6.gpkg BGD_H3_L7.gpkg BGD_H3_L8.gpkg results/parametric scenario_1664.gpkg scenario_1762_Arakan.gpkg scenario_1822.gpkg scenario_1869_Cachar.gpkg scenario_1885_Manikganj.gpkg scenario_1897_Dauki.gpkg scenario_1918_Srimangal.gpkg scenario_Chittagong_north.gpkg scenario_Chittagong_thrust_smaller.gpkg scenario_Sikkim_mht.gpkg scenario_Western_deformation_front.gpkg scenario_Western_deformation_front_partial.gpkg Site_Model_Bangladesh.csv

News OpenQuake: an Open approach for collaborative Earthquake Risk Assessment By: Jul 2, 2018 Share Facebook LinkedIn University College London hosted the seminar on the 18th Mayat Chadwick Building, UCL on the use of open approach for earthquake risk assessment featuring GEM's OpenQuake. GEM represented by Paul Henshaw, Director of Technology and Development discussed the work and goals of the GEM (Global Earthquake Model) Foundation and share some experiences building OpenQuake, an open source platform for earthquake risk awareness and assessment. He also shared the challenges encountered managing and presenting geospatial data, and solutions adopted to address them. He also underscored how GEM applies the open approach to software, data and methodologies and its impact on collaborative projects. "I believe that openness and transparency are important ingredients when it comes to risk assessment. At GEM, these principles are at the heart of all our work,” Paul Henshaw, GEM Director of Technology and Development on what makes OpenQuake a cut above rest. The seminar was organized by University College London (UCL) on May 29th to promote the open source computational tools for earthquake risk assessment. UCL is a GEM partner in GFDRR/DFID Challenge Funds. No images found. GALLERY 1/0 VIDEO RELATED CONTENTS

News From Data Sharing to Disaster Response: USGS-GEM Agreement to Strengthen Global Earthquake Preparedness By: May 14, 2024 May 14, 2024 Share Facebook LinkedIn Photo credit: David Wald, USGS The United States Geological Survey (USGS) Geologic Hazards Science Center and the Global Earthquake Model (GEM) Foundation signed a new 5-year technical agreement on May 2nd, 2024 at the Seismological Society of America (SSA) Annual Meeting in Anchorage, Alaska, with the joint objective of improving earthquake preparedness and response efforts worldwide. This collaborative effort will leverage the expertise and resources of both organisations, leading to advancements in seismic hazard and risk modelling and ultimately a more earthquake-resilient future. Helen Crowley, GEM Secretary General: “This agreement renews our longstanding relationship with USGS on a number of technical fronts. By combining our expertise with USGS, we can together develop more reliable hazard and risk models and products that can be implemented on a global scale.” Towards a Resilient Future: A Shared Mission Earthquakes are a constant threat, posing a significant risk to life, infrastructure, and economies around the globe. Both USGS and GEM share a common mission: to understand and mitigate earthquake hazards and risks. The USGS Geologic Hazards Science Center, a U.S. government agency, is located in Golden, Colorado and monitors earthquakes globally, provides real-time loss estimations after major events, and assesses seismic hazard nationally. GEM, an international non-profit organisation, develops open-source tools and models for seismic hazard and risk assessment at global, regional and national scales. Building on Strengths: Key Areas of Collaboration The partnership outlines several key areas of collaboration aimed at strengthening earthquake preparedness and response on a global scale. These include: 1. Joint Research and Development: The agreement paves the way for collaborative research to improve earthquake hazard and loss modelling approaches. This will involve identifying gaps in existing methods and developing new tools to better estimate the impacts of earthquakes. 2. Enhanced Communication and Data Sharing: USGS and GEM will work together to improve communication and share scientific knowledge and data. This will allow for the integration of USGS's ShakeMap products, which describe ground shaking intensity following earthquakes, into GEM's scenario modelling efforts. Additionally, GEM's Global Seismic Risk Model will be tested and implemented within the USGS PAGER system, which provides near real-time loss estimations after earthquakes. 3. Vulnerability and Exposure Modelling: A crucial aspect of the collaboration is working together to refine vulnerability and exposure modelling, particularly in the United States. This will involve joint investigations to analyse and calibrate earthquake vulnerability models for various building types. 4. Global Impact: The agreement extends beyond the US. Both organisations will work together to create collaborative initiatives with regional and national government agencies. This will promote the use of open-source tools and data to advance earthquake risk reduction efforts worldwide. Ryan Gold, Center Director, Geologic Hazards Science Center, U.S. Geological Survey: “The USGS is proud to partner with GEM to leverage our combined strengths in earthquake science and engineering. This collaboration will lead to significant advancements in how we assess and communicate earthquake risks, ultimately saving lives around the world.” To learn more about USGS earthquake products, visit https://www.usgs.gov/programs/earthquake-hazards . To download GEM seismic hazard and risk products, visit https://www.globalquakemodel.org/products . No images found. GALLERY IMG_1090.jpg IMG_1088.jpg IMG_1085.jpg IMG_1090.jpg 1/3 Photo credit: David Wald, USGS VIDEO RELATED CONTENTS

Repository with the inventory of residential, commercial and industrial buildings in Europe Products Europe Exposure Repository with the inventory of residential, commercial and industrial buildings in Europe Share Facebook LinkedIn Description The Global Exposure Model is a mosaic of local and regional models with information regarding the residential, commercial, and industrial building stock at the smallest available administrative division of each country and includes details about the number of buildings, number of occupants, vulnerability characteristics, average built-up area, and average replacement cost. The dataset is developed and maintained by the GEM Foundation, using a bottom-up approach at the global scale, using national statistics, socio-economic data, and local datasets. This model allows the identification of the most common types of construction worldwide, regions with large fractions of informal construction, and areas prone to natural disasters with a high concentration of population and building stock. For the case of Europe, the exposure model is built upon the dataset developed by the European Facilities for Earthquake Hazard and Risk (EFEHR). The original information can be consulted in the repository for the European Seismic Risk Model (ESRM20) in [this link](https://gitlab.seismo.ethz.ch/efehr/esrm20_exposure) The Europe region of the model includes the information pertaining the following countries/territories: Albania, Andorra, Austria, Belarus, Belgium, Bosnia_and_Herzegovina, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Isle_of_Man, Italy, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North_Macedonia, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United_Kingdom How to cite this work If you make use of this work, please cite both the publication and the data. Publication: Yepes-Estrada, C., Calderon, A., Costa, C., Crowley, H., Dabbeek, J., Hoyos, M., Martins, L., Paul, N., Rao, A., Silva, V. (2023). Global Building Exposure Model for Earthquake Risk Assessment. Earthquake Spectra. doi:10.1177/87552930231194048 Data: Yepes-Estrada, C., Calderon, A., Costa, C., Crowley, H., Rao, A., Paul, N., & Silva, V. (2026). Global Exposure Model (2026.0.0). Zenodo. https://doi.org/10.5281/zenodo.8117363. Available Versions An open version (v2026.1) of the model, agreggated at Administrative Level 1, is available for direct download under a CC BY-NC-SA 4.0 license. Users interested in this version can click the "Open Repository" button in the right panel to access the information. The full version for any country/territory, at the highest resolution available, can be requested by clicking on the "License Request", where a specific license will be provided, depending on the use case. License information The open version is available under a Creative Commons CC BY-NC-SA 4.0 license, which requires: Attribution (you must give appropriate credit, provide a link to the license, and indicate if changes were made) Non-commercial (you may not use the material for commercial purposes) ShareAlike (derivatives created must be made available under the same license as the original) Any deviation from these terms incur in license infringement. For commercial use of the model, a specific license agreement must be made tailored to your use case, in such instance please click on "License Request". Facebook LinkedIn Share Latest Version v2026.0 License CC BY-NC-SA 4.0 Available resources Open Repository License Request text Map View Search Popup title Close Country/Region Available Resources Afghanistan Exposure Africa Exposure Alaska Exposure Country/Region Available Resources Afghanistan Vulnerability Africa Vulnerability Alaska Vulnerability Country/Region Resource Url Afghanistan Risk Profile Africa Risk Profile Alaska Risk Profile Search Found Country/Region Resource Url Afghanistan Exposure Africa Exposure Alaska Exposure Preview Preview is not available. Search Found Country/Region Resource Url Afghanistan Vulnerability Africa Vulnerability Alaska Vulnerability Preview Preview is not available. Search Found Country/Region Resource Url Afghanistan Risk Profile Africa Risk Profile Alaska Risk Profile Preview Preview is not available. Related products GEM Building Taxonomy Global Seismic Embodied Carbon Risk Global Seismic Hazard Map Global Liquefaction Hazard Global Exposure Model Global Vulnerability Model Global Map of Road Exposure to Ground Shaking and Liquefaction Global Seismic Risk Map Country-Territory Seismic Risk Profiles Related publications European Seismic Risk Model 2020: Focus on Croatia Read More The European Seismic Risk Model 2020 (ESRM 2020) Read More Evaluation of Seismic Risk on UNESCO Cultural Heritage sites in Europe Read More For downloading or accessing detailed product information like PNG/PDF maps, datasets, license request, shapefiles and more, please switch to a desktop or laptop computer. Thank you for your understanding.

News Local solutions to global problems: reducing disaster risk through collaboration and openness By: Oct 12, 2021 Share Facebook LinkedIn TREQ Team meeting with engineers of the Municipality of Quito, Ecuador. The 2021 edition of IDDR Day focuses on ‘International cooperation for developing countries to reduce their disaster risk and disaster losses.’ - the sixth of the Sendai Seven targets. GEM’s work over the past decade in developing countries has accelerated the assessment of risk and incorporation of risk-based decisions into planning and sustainable development by merging the interests of public and private sectors, and collaborating with local governments. John Schneider, GEM Secretary General, underscores GEM’s collaborative and inclusive approach by saying that “GEM develops trust with local partners and stakeholders through projects that provide technical support and training on the use and application of GEM models, tools and methodologies. We ensure that local scientists, experts and local decision-makers are involved from the start.” Most recently, GEM’s Training and Communication for Earthquake Risk Assessment or TREQ Project, funded by USAID, has demonstrated this by GEM working together with local partners in building the capacity for urban earthquake risk assessment in Quito, Ecuador; Cali, Colombia; and Santiago de los Caballeros, Dominican Republic. Building on the success of GEM’s previous collaborative efforts in the South America Risk Assessment project (SARA 2013-2016) and Central America and the Caribbean Risk Assessment project (CCARA 2017-2018), the TREQ team, in collaboration with local experts, has updated the hazard and risk models of the pilot cities using more detailed hazard and risk information. Since 2020, the TREQ team has trained in using OpenQuake for urban earthquake hazard and risk assessments ( ). The project also produced training and educational materials that are being adapted for university courses through the project’s The results* of the TREQ project will be released openly, and will be of interest to a wide-range of users – from risk analysts, emergency planners and managers to researchers, modelers and the public at large. The analysis methods and collaboration approach set the foundation for enhancing earthquake hazard and risk assessment for other cities and urban areas in Central and South America, and may be extended worldwide to cities at risk and in need of assistance. “The TREQ project has served as a venue for thorough discussion and developing skills in the hazard and risk assessment fields in the region. Working groups established in the cities have facilitated the sharing of data, knowledge, methodologies and results between the local partners and GEM scientists. Over the past two years, we have mutually learned from our diverse backgrounds and experiences.” Catalina Yepes, GEM Project Manager on the importance of local collaboration in disaster risk reduction. For other examples of GEM’s collaborative work in disaster risk reduction in developing countries, check the following links below: - - - - - - More information on UNDRR International Day for Disaster Risk Reduction can be found at . ----- * While most of the models and datasets will be available, there will be some limitations due to privacy considerations of local governments. No images found. GALLERY 1/0 Gallery VIDEO RELATED CONTENTS

Publications Material didáctico para sensibilizar a la comunidad sobre el riesgo sísmico. Aplicación para el Área Metropolitana del Valle de Aburrá (AMVA) Share Facebook LinkedIn Download 2022 | Report El presente documento es el resultado del esfuerzo colaborativo entre la Fundación GEM, la administración del Área Metropolitana del Valle de Aburrá (AMVA) y su proyecto Sistema de Alerta Temprana de Medellín y el Valle de Aburrá - SIATA y la Universidad EAFIT. El objetivo de este reporte es generar material didáctico para sensibilizar a la comunidad sobre el riesgo sísmico que pueda servir de apoyo a las personas encargadas de comunicar este tema a diferentes grupos de la sociedad. El público objetivo de la sesión va desde estudiantes en diferentes grados de escolaridad a la comunidad general, incluyendo al personal que participa en las actividades de planeación, reducción y mitigación del riesgo de desastres.

Publications GEM: For a safer and earthquake resilient future (brochure) Share Facebook LinkedIn Download 2019 | Brochure Initiated by the OECD’s Global Science Forum, GEM was formed in 2009 as a non-profit foundation in Pavia, Italy, funded through a public-private sponsorship with the vision to create a world that is resilient to earthquakes. GEM’s mission is to become one of the world’s most complete sources of risk resources and a globally accepted standard for seismic risk assessment, whose products are applied in risk management worldwide.

Publications Risk Modeler's toolkit Share Facebook LinkedIn Download 2015 | User manual The goal of this book is to provide a comprehensive and transparent description of the methodologies adopted during the implementation of the OpenQuake Risk Modeller’s Toolkit (RMTK). The Risk Modeller’s Toolkit (RMTK) is primarily a software suite for creating the input models required for running seismic risk calculations using the OpenQuake-engine. The RMTK implements several state-of-the-art methods for deriving robust analytical seismic fragility and vulnerability functions for single structures or building classes. The RMTK also provides interactive tools for post-processing and visualising different results from the OpenQuake-engine seismic risk calculations, such as loss exceedance curves, collapse maps, damage distributions, and loss maps. The OpenQuake Risk Modeller’s Toolkit is the result of an effort carried out jointly by the IT and Scientific teams working at the Global Earthquake Model (GEM) Secretariat. It is freely distributed under an Affero GPL license (more information available at this link http://www.gnu.org/licenses/agpl- 3.0.html).

News GEM reaching out in Addis Ababa By: Jul 2, 2018 Share Facebook LinkedIn Risk Coordinator Vitor Silva was invited to deliver a presentation on our work and participated in one of the panel sessions. Our team were very active in the many official forums, as well as promoting GEM through social media and face-to-face discussion with delegates at our display booth. In a standing-room-only interactive event led by Carlos Villacis, Chris Burton, and Vitor Silva, our work in Disaster Risk Reduction in Africa was enthusiastically attended, drawing the highest number of participants of all the sessions on the conference’s closing day. While in the Ethiopian capital, our new Fund-raiser, Chris Wardle and Socioeconomic-Vulnerabilities Coordinator Chris Burton met with senior staff from the USAID’s Regional Office, with Chris Burton’s overview of GEM being very well received. The GEM team were also able to establish a working relationship with the Fire Emergency Prevention and Rescue Agency (FEPRA), as one of the key building blocks for a city-level risk assessment for Addis Ababa, planned under our USAID-funded SSAHARA programme. No images found. GALLERY 1/0 VIDEO RELATED CONTENTS

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