Projects SIGMA3 SeismIc hazard and Ground Motion Assessment Versión en español English version Share Facebook LinkedIn Overview Work Packages Training Dissemination Photos Publications Anchor 6 Overview SIGMA3 is a research and development (R&D) program on SeIsmic hazard and Ground Motion Assessment. It is the 3rd part of a larger R&D initiative initiated in 2011 to support innovation in the field of probabilistic hazard assessment (PSHA). SIGMA3 is fully funded by the industry at 100%. The program grounds its roots in methodological developments, as well as in the identified shortcomings of the two preceding editions, labelled SIGMA and SIGMA2. The previous two programs have led to insightful datasets and models to accompany the inception of probabilistic site-specific PSHA studies in low-to-moderate seismicity areas, such as France, for instance. However, nowadays, additional progress is still needed to reduce epistemic uncertainties and improve confidence in probabilistic seismic hazard studies. To this end, SIGMA3 gathers a group of researchers and engineers actively involved in the seismic hazard community and recognized for their expertise. Objectives The SIGMA program is a Research and Development project about seismic hazard and ground motion. It has the objective to improve data and develop methods necessary to best estimate SHA by producing Hazard levels more adapted to the site. Improve available practices for safety demonstration to get consensus with the largest international community for R&D and industrial applications Improve confidence and accountability in seismic hazard assessments by quantifying and propagating uncertainties on Seismic Source and Ground Motion Characterization Strengthen the link between seismologists and engineers, and share feedback among consortium members Collaborators Steering Committee The Steering Committee handles strategic and technical decision-making in the SIGMA3 program and provides recommendations on the program’s orientation, informed by the Scientific Committee’s expertise. Composition: Emmanuel Viallet (EDF France), Fabrice Hollender (CEA France), Vojtech Spanihel (CEZ Group Czech Republic), Masato Nakajima (CRIEPI Japan), Albert Kottke (PG&E USA), Fabienne Chawla (SwissNuclear Switzerland), Ludovic Fulop (VTT Finland) Scientific Committee The members of the SIGMA3 Scientific Committee are independent experts in their field, providing recommendations, insights, and reviews on activities performed through the program. Composition: Philippe RENAULT (Chairperson), Norman ABRAHAMSON, Laurent BOLLINGER, Emmanuel CHALJUB, Maria José CRESPO, John DOUGLAS, Zeynep GULERCE, Sadanori HIGASHI, Pierre LABBE, Ian MAIN, Adrian RODRIGUEZ-MAREK, Alain PECKER, Gabriel TORO, Kris VANNESTE, Jérôme VERGNE Location Global (coordinating agency located in France) Sigma 3 Technical Program Supported by ´Electricité de France (EDF), GEM’s activities cover three work packages: For more details on Sigma3's work packages (WP), click here . 1. Probabilistic Fault Displacement Hazard Analysis. This activity builds upon work carried out in 2024 within the framework of a collaboration with OGS, Trieste. 2. Development and methodologies for probabilistic seismic hazard assessment. In this WP, we will further develop capabilities to compute the conditional aftershock hazard and propagate epistemic uncertainties efficiently. 3. Development of a Simulation Platform. The objective of this activity is to generate a set of Python tools for evaluating fundamental components of a hazard input model - namely, source, ground motion, and site effects - used in Probabilistic Seismic Hazard Analysis (PSHA) computations. Anchor 1 Anchor 5 Conferences and Events For the latest events, training, seminars/webinars and conferences, please visit: https://sigma-programs.com/dissemination-sigma-3/conferences-and-events/ Anchor 4 SIGMA3 - SeismIc hazard and Ground Motion Assessment This section contains outreach activities conducted by the SIGMA3 program. For more details, click here . 1. News - https://sigma-programs.com/dissemination-sigma-3/news/ 2. Conferences and Events - https://sigma-programs.com/dissemination-sigma-3/conferences-and-events/ Anchor3 BUSINESS NEWS 1st General Assembly - June 2025, Helsinki (Finland) 1/1 BUSINESS NEWS Sigma3 Kick-Off - 11 June 2024, Aix-en-Provence (France) 1/1 Publications SIGMA3 - Publications and Reports This section contains project publications and reports as they become available. The list of currently available materials can be accessed here: https://sigma-programs.com/sigma-3/dissemination-sigma-3/publications-reports/

Projects EU DRR Regional risk modelling and scenario analysis for EU Member States - Seismic risk analysis and exposure data Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background This project supports the World Bank Technical Assistance project "Economic Analysis of Prevention and Preparedness in European Union Member States and Countries under EU Civil Protection Mechanism". The GEM Risk Team provides exposure and probabilistic seismic risk assessments for the 27 EU member states and 6 participating states, building upon the EFEHR ESHM20 hazard and ESRM20 exposure datasets [insert link www.efehr.org ], adding educational and healthcare building stock, and forecasting exposure to 2050. Further, retrofitted vulnerability curves are derived to inform the seismic impact analyses and a cost-benefit analysis. Duration: 2020-2021 Objectives The project is conducted in collaboration with the European Commission’s (EC) Directorate-General for European Civil Protection and Humanitarian Aid Operations (DG ECHO). The objectives of this project are to: 1. Provide regionally-consistent probabilistic seismic risk metrics across Union Civil Protection Mechanism (UCPM) countries for population and selected structure types, to inform macro-economic analysis that is to be conducted by the World Bank project team. 2. Provide seismic impact analysis for two selected earthquake scenarios with and without specified DRM intervention, to estimate the impact of that intervention on i) loss due to direct damage and ii) fatalities. This will contribute to cost-benefit analysis of EU-funded DRM investments conducted by the WB project team using the Triple-Dividend framework. Collaborators GEM Foundation Funding partner: World Bank Group Locations EU Member States Anchor 1 Anchor 5 Anchor 4 Anchor3 Publications

Projects GFDRR-DFID GFDRR-DFID Challenge Funds Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background The Global Facility for Disaster Reduction and Recovery (GFDRR) and the UK Department for International Development's (DFID) competitive Challenge Fund pilots new and innovative approaches to overcoming technical and technological challenges in order to strengthen disaster and climate risk decision-making in developing countries. To this end, this project is supporting the development of data, products, and approaches to support disaster risk management decision-making and build resilience, including through better information, but also strengthening key steps in moving from information to insight and behaviour change. Each challenge is focusing on the development of a database with hazard footprints, exposure information and vulnerability models. The viability of the databases will be demonstrated using exposure data for Tanzania and another DFID priority country. Objectives The project is divided into three components. The British Geological Survey leads the development of a data schema and data for a multi-hazard database (Challenge 1) while GEM and University College London lead the development of a global exposure database (Challenge 2) and open vulnerability platform for evaluating risk (Challenge 3) respectively. GEM also contributes to Challenge Fund 1 and 3. GEM leads Challenge Fund 2 on the development of a global exposure data framework, which includes the physical vulnerability characteristics and exposure taxonomy. The aim is to identify the most important vulnerability characteristics; ways to account for uncertainties in exposure and vulnerability models; type of assets that should be supported by the vulnerability and exposure database; and the most common and useful intensity measure types. The objective of this project is to develop a Data Exploration Tool to promote the ability of a user to access, understand and use hazard, exposure and vulnerability data stored in a format that follows the data schema developed by the Challenge Fund consortia. British Geological Survey (BGS) leads the development of a data schema and data for a multi-hazard database (Challenge 1) GEM Foundation leads the development of a global exposure database (Challenge 2) University College London (UCL) leads the development of open vulnerability platform for evaluating risk (Challenge 3) Various organizations also participated and contributed to the project such as the Geological Survey of Tanzania; Ardhi University (Tanzania); Dar Es Salaam University (Tanzania); DFID Tanzania; Prime Minister's Office - Disaster Management Department (Tanzania); DoMA (Malawi); INGC (Mozambique); Ministry of Energy & Mineral Development (Uganda); ImageCat (USA); Humanitarian OpenStreetMap Team (HOT Indonesia); NSET (Nepal); IDF (Switzerland); UA (Netherlands); NGI (Norway); NOC (UK); CIMA (Italy); and UCL-EPI (UK). Locations Tanzania and neighbouring countries Anchor 1 Anchor 5 Anchor 4 A consortium led by the GEM Foundation with partners ImageCat Inc. and the Humanitarian OpenStreetMap Team completed recently an open exposure database for multi-hazard risk assessment... The University College London (UCL) EPICentre and CatLin XL hosted the second workshop held on July 27 in London to collect feedback. The GFDRR-DFID Challenge Fund projects on the development of exposure, vulnerability and hazard footprints databases kicked off with a 2-day inception workshop. Anchor3 Publications GFDRR-DFID Challenge Funds Round 2 How can innovative approaches make communities more resilient to climate change and natural disasters? GFDRR-UK Aid Challenge Fund: Final Learning Report: Value of Risk Information for Decision Making May 31, 2018 Data schema and data: for multi-hazard database (BGS), for global exposure database (GEM), for a global database of vulnerability functions (UCL) Extensible Data Schemas for Multiple Hazards, Exposure and Vulnerability Data published as part of the UNDRR GAR2019 .

Projects WESTERN BALKANS CCDR Input to World Banks' Country Climate and Development Report (CCDR) for Western Balkans Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background As part of the World Bank Groups' Country Climate and Development Reports (CCDRs), the GEM Foundation and JBA Risk Management are working together to provide current (2021) and future (2050) earthquake and flood risk assessment for 6 West Balkans countries: Albania, Bosnia and Herzegovina, Kosovo, Montenegro, North Macedonia and Serbia. The GEM Risk Team is providing the exposure database (property and population data) for both the flood and seismic risk assessment for six Western Balkan countries at the lowest administrative level, using both existing datasets for 2021 and socio-economic projections for forecasted exposure to 2050. Seismic hazard and risk assessment for the current and future exposure is also being undertaken with the OpenQuake engine, leading to average annual losses and losses for specific return periods for each country. Duration: 2023 Objectives The World Bank is preparing the Country Climate and Development Report for the Western Balkans. The CCDR aims to inform policy dialogue and engagement with governments. This provides an opportunity to carry out several analytical pieces, including in the area of Disaster Risk Management, bringing together existing knowledge on the economic and social impacts of disasters and climate change, and delivering new analytical insights to support policy recommendations. Collaborators JBA Risk Management, GEM Foundation Funding partner: World Bank Group Locations Albania, Bosnia and Herzegovina, Kosovo, Montenegro, North Macedonia and Serbia. Anchor 1 Anchor 5 Anchor 4 Anchor3 Publications

Projects CCARA Caribbean and Central America Earthquake Risk Assessment (CCARA) Versión en español English version Share Facebook LinkedIn Overview Outcomes Training Outreach Photos Publications Anchor 6 Background Earthquake risk is on the rise and earthquakes are expected to take an increasing number of lives. Hazard and risk assessments are the foundation for raising awareness among policy makers and the general public, forming the basis for decisions and actions that effectively build resilience and can reduce risk. While important work has been carried out in the Central American and Caribbean region to understand earthquake risk assessment and management there is still ample room to enhance that understanding and properly introduce it in decision- and policy-making processes. In many areas of the world, state-of-the-art information and tools to assess earthquake risk have been inaccessible for a long time. As a first step to tackle this problem, the Global Earthquake Model (GEM) has been created and spent the past 11 years collaboratively advancing open source science and technology for global state-of-the-art seismic hazard and risk modeling, data collection, and risk assessment at scales from local to national, regional, and global. Objectives The project aims to calculate hazard and risk, and to estimate the compounding social and economic factors that increase the physical damage and decrease the post-event capacities of populations to respond to and recover from damaging earthquake events in The Caribbean and Central America, by involving local experts from throughout the region. The goal of the Program in Central America and the Caribbean is to develop capacity in the region for earthquake risk assessment by leveraging GEM tools and resources, to enhance the understanding of earthquake risk, and to bridge the gap between risk assessment and disaster risk reduction. To improve the understanding of earthquake risk in the Central America and Caribbean region while developing local capacities to use open source resources for producing earthquake hazard and risk information at regional, national and local scales. To engage with decision-makers and other end-users to make the connection between advanced risk assessment by local experts and risk-reducing action and so influence DRR policy. Collaborators The CCARA project would not have been possible without the contributions of all the municipalities in particular: the Municipality of San José (Costa Rica), National Commission of Emergencies (CNE), University of Costa Rica (UCR) - Laboratorio Nacional de Materiales y Estructuras (LANAMME), INETER, ONESVIE, ODPEM, BRGM, Bureau des Mines, VT, Geologica UPR Mayaquez, UNI, SRC and UMG. Location Caribbean and Central America countries Website Caribbean and Central America Earthquake Risk Assessment (CCARA) wiki site contains an overview of the project. Anchor 1 Anchor 5 The CCARA project hosted four participants from South America to introduce seismic hazard and risk assessment using tools developed by GEM – specifically the OpenQuake engine. Anchor 4 Modelling subduction earthquakes: GEM experiences in Latin America CCARA project GEM presents the results of the USAID-funded CCARA Project in Santo Domingo, Dominican Republic A hazard workshop in San José, Costa Rica from September 18th to 22nd as part of the risk assessment activities of the CCARA project. Anchor3 Publications CCAF-DB: The Caribbean and Central American Active Fault Database Disclaimer The contents of this project website such as studies, reports, audio-visual, news articles, blogs, and other information or media products including those in the external links are made possible by the generous support of the American people through the United States Agency for International Development (USAID). The contents are the responsibility of the Global Earthquake Model (GEM) Foundation and do not necessarily reflect the views of USAID or the United States Government.

Projects HORUS Horus: Pilot for a generic damage evaluation methodology based on remote-sensing data Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background Horus is a pilot project that explores the combination of high-resolution building inventory data from OpenStreetMap and other local sources with image-processing algorithms for the detection of earthquake damage and flood extents using remote-sensing data, along with supplementary geospatial datasets as inputs to a machine learning (ML) classification model. The ML model is trained using detailed building damage datasets from past events in a supervised learning framework, and the trained model is intended to be used to estimate the extent of damage and loss in events previously unseen by the model. The proposed framework is applied in three case study applications: March 2020 Mw5.3 Zagreb earthquake; January 2020 Mw6.4 Puerto Rico earthquake and August 2016 Louisiana floods. The GEM Risk Team is responsible for the overall coordination of the project involving multiple partners, compilation of building-level earthquake damage datasets, development of the ML models, and training and testing of the models. Duration: 2020 Objectives This pilot project, initiated and funded by the World Bank, aims to develop a framework for semi-automated damage and loss assessment due to earthquake and floods from Earth Observation (EO) data and other supplementary datasets, while also leveraging recent advances in machine-learning algorithms. These damage and loss estimates can potentially be used for transparent financial compensation and to target the distribution of resources geographically and temporally. Collaborators Advanced Rapid Imaging and Analysis (ARIA) team at the National Aeronautics and Space Administration’s (NASA) Jet Propulsion Laboratory (JPL) and California Institute of Technology (Caltech), the Global Earthquake Model (GEM) Foundation, JBA Risk, and the Humanitarian OpenStreetMap Team (HOT) Funding partner: World Bank Group Locations Earthquake case studies: Gorkha, Nepal; Puebla, Mexico; Puerto Rico, United States; Zagreb, Croatia Flood case study: Louisiana, United States Anchor 1 Anchor 5 Anchor 4 Anchor3 Publications

Projects ARMENIA PSHA MODELLING Probabilistic Seismic Hazard Assessment for the Republic of Armenia Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background This project responds to a World Bank request for a probabilistic seismic hazard assessment for the Republic of Armenia. The goal of this study is to better understand the existing seismic hazard information in the country, and to provide an updated hazard model. The GEM Hazard Team supports all aspects of the model development, and in the running of the analyses with the OpenQuake engine. Duration: 2017 Objectives Probabilistic seismic hazard models, such as this model for the Republic of Armenia, can be used as a rigorous and robust basis for the design of a national disaster risk financing and insurance strategy. Collaborators Verisk (AIR Worldwide), GEM Foundation, Georisk Scientific Research Company Funding partner: World Bank Group Location Armenia Anchor 1 Anchor 5 Anchor 4 Anchor3 Publications

Projects SERA Project Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe (SERA) Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background The Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe (SERA) aims to reduce the risk posed by natural and anthropogenic earthquakes based on innovative research and development projects. SERA will significantly improve the access to data, services and research infrastructures for scientists and other professionals. GEM's contributions focus on taxonomy and exposure of residential, commercial and industrial buildings in Europe; physical vulnerability assessment for buildings; integrated earthquake risk analysis using the risk assessment framework and OpenQuake software established by the Global Earthquake Model. SERA is a Horizon 2020-supported programme responding to the priorities identified in the topic INFRAIA-01-2016-2017 ‘Integrating Activities for Advanced Communities’. SERA involves 31 partners and 8 linked third parties in Europe. It started in May 2017 and will last for three years. Objectives The EUCENTRE-SERA project is collaborating closely with the GEM Foundation (Global Earthquake Model) to: develop a European Risk Modelling framework that brings together the strengths of previous projects such as SHARE, NERA and fills in the research gaps; integrate knowledge and data from other SERA working packages; and build on the risk assessment framework and software developed by GEM. SERA is engaging 31 partners from 16 European countries. They all have leading expertise in the operation of experimental facilities, monitoring infrastructures, and data repositories in the fields of seismology, anthropogenic hazards or earthquake engineering. (complete list ) Location Europe Anchor 1 Anchor 5 Anchor 4 EM-SERA OpenQuake Training in Istanbul, Turkey SERA European Building Exposure Workshop: From European Hazard to Risk Anchor3 Publications

Projects BACK TO NORMAL Earthquake Recovery Modelling Versión en español English version Share Facebook LinkedIn Overview Anchor 6 Background To address some of the key factors that influence recovery following a potentially devastating earthquake, the Alfred E. Alquist Seismic Safety Commission (SSC) engaged the GEM (Global Earthquake Model) Foundation and the University of California at Los Angeles (UCLA), Department of Civil and Environmental Engineering, a) to develop a methodology and an open-source and transparent software tool to estimate recovery states and recovery times following an earthquake; and b) to investigate the effect of external socio-economic factors on these recovery times. Objectives This project achieved the following main objectives: 1. Development of a user-friendly, non-commercial and transparent software tool, herein referred as the Integrated Risk Modelling Toolkit (IRMT), to make map-based comparisons showing the effect of different resilient actions on the recovery times. 2. Development of an analytic methodology, referred as the Reconstruction Recovery Model, to estimate post-earthquake recovery 3. Integration of the Reconstruction Recovery Model for practical use into GEM’s OpenQuake modelling platform. 4. Demonstration of reasonable results by using the methodologies to model past earthquakes. In this context, the 2014 M6 South Napa Earthquake was used as a case study. Collaborators Department of Civil and Environmental Engineering at the University of California at Los Angeles (UCLA) Location California, United States Anchor 1 Anchor 5 Anchor 4 Anchor3 Publications

Projects CAREC Developing a Disaster Risk Transfer Facility in the Central Asia Regional Economic Cooperation Region Versión en español English version Share Facebook LinkedIn Overview Outreach Anchor 6 Background Willis Towers Watson, a GEM Advisor Sponsor is leading the consortium of organizations to implement the project, “Developing a Disaster Risk Transfer Facility in the Central Asia Regional Economic Cooperation Region” supported by the Asian Development Bank. The GEM Risk Team is responsible for the exposure and seismic vulnerability components of the project, with the Hazard Team providing support in the preparation of risk profiles for countries in the Central Asia Regional Economic Cooperation Region. Objectives The project has three main components: (i) development of disaster risk assessments and modeling in all CAREC countries; (ii) design of a regional pilot disaster risk transfer facility for at least three CAREC countries; and (iii) capacity building and awareness raising activities to sensitize key public and private stakeholders in all CAREC countries about the benefits of disaster risk reduction, risk retention and risk transfer solutions. Willis Towers Watson, a GEM Advisor Sponsor is leading the consortium of organizations that will implement the project. The Central Asia Regional Economic Cooperation, or CAREC Program is a partnership of 11 countries (Afghanistan, Azerbaijan, People's Republic of China, Georgia, Kazakhstan, Kyrgyz Republic, Mongolia, Pakistan, Tajikistan, Turkmenistan, and Uzbekistan), supported by 6 multilateral institutions, working together to promote development through cooperation, leading to accelerated growth and poverty reduction. Location Central Asia Anchor 1 Anchor 5 Anchor 4 About the CAREC program Read more GEM has started a new project with WTW supported by the Asian Development Bank Read more ADB project overview and data sheet Read more Anchor3 Publications