You have chosen to request a demo on: Taiwan Hazard First Name Last Name Email Company or Institution Name Country Sector Provide Details I accept the license terms and the conditions of products use. Email us at product@globalquakemodel.org if you're experiencing problems submitting this form or if you have any inquiries. Thank you. Request Thanks for submitting! You will be contacted as soon as possible Add answer here

Publications Variable resolution probabilistic modeling of residential exposure and vulnerability for risk applications Share Facebook LinkedIn Download 2020 | Peer-reviewed In risk assessment, the exposure component describes the elements exposed to the natural hazards and susceptible to damage or loss, while the vulnerability component defines the likelihood to incur damage or loss conditional on a given level of hazard intensity. In this article, we propose a novel adaptive approach to exposure modeling which exploits Dirichlet-Multinomial Bayesian updating to implement the incremental assimilation of sparse in situ survey data into probabilistic models described by compositions (proportions). This methodology is complemented by the introduction of a custom spatial aggregation support based on variable-resolution Central Voronoidal Tessellations. The proposed methodology allows for a more consistent integration of empirical observations, typically from engineering surveys, into large-scale models that can also efficiently exploit expert-elicited knowledge. The resulting models are described in a probabilistic framework, and as such allow for a more thorough analysis of the underlying uncertainty. The proposed approach is applied and discussed in five countries in Central Asia.

OPENQUAKE ENGINE CERTIFICATION Promoting global professional standards in seismic hazard and risk modelling and building a community of certified OpenQuake Engine users committed to transparency and collaboration. OQ-engine Certified User badge Share Facebook LinkedIn Certification Information Certified OQ Users List Who it’s for At present, the certification programme is for analysts, researchers, modellers, engineers and DRR practitioners who run scenario analyses with the OpenQuake Engine and need a recognised, skills-based credential. Additional certification tracks (e.g., hazard-PSHA, risk-PSRA) are planned. This webpage will list timelines and any updates. Current pathway Certification is currently available through the annual GEM-EGU Summer School in Aveiro, Portugal (launched 2025) and the GEM course offered as part of the ROSE Masters and PhD programmes at the IUSS Pavia, Italy. Online options are planned and may be introduced if there is sufficient demand in the future. Contact us if you are interested in a remote certification option. Contact Us How certification works (step-by-step) 1. Enrol/Register in one of the two approved courses mentioned above 2. Complete the course and take the assessment test. The assessment has two parts: a. Knowledge check – short questions on input models, scenario hazard and risk concepts and OQ calculators. b. Practical task – build and run an OQ scenario; submit inputs, config, logs, and outputs (damage/loss maps/tables). 3. Evaluation and result Submissions are marked against a published rubric (correctness, reproducibility, interpretation, communication). Candidates meeting the competency threshold are awarded certification. 4. Credential and validity Successful candidates receive a digital certificate and badge, valid for three (3) years. 5. Directory and verification (Opt-in) Appear in GEM’s public registry of certified OQ users; organisations can verify certificates via a unique ID or through LinkedIn’s Certifications and Licenses. 6. Recertification Before expiry, renew by either: a. completing a short recertification exercise/quiz; b. demonstrating continuing professional development (e.g., attendance to OQ training workshops/webinars) plus a brief competency check. c. attend again one of the certification courses. Full details will be posted on this webpage soon. What you’ll be certified to do Configure and run OpenQuake Engine scenario analyses (covering ground shaking and earthquake-triggered liquefaction and landslide hazards, as well as damage and loss metrics). Create reproducible outputs (maps/tables) and explain input models, assumptions, and limitations to decision-makers. OpenQuake Engine Certified Users This section will feature the list of individuals who have completed the OpenQuake Certification Programme for Scenario Analyses. Each certified user has demonstrated competence in running and interpreting scenario risk analyses using the OpenQuake Engine. The list is currently under construction and will be updated as new certifications are awarded. List of Certified OpenQuake Engine Users Name Certification Track Status Completed Course Abdelhamid Allaoui Scenario Assessment Valid EGU-GEM Summer School 2025 Alexander Koelzer Scenario Assessment Valid EGU-GEM Summer School 2025 Alexandru Tiganescu Scenario Assessment Valid EGU-GEM Summer School 2025 Annisa Rizqilana Scenario Assessment Valid EGU-GEM Summer School 2025 Atefe Darzi Scenario Assessment Valid EGU-GEM Summer School 2025 Aurora Lambiasse Scenario Assessment Valid EGU-GEM Summer School 2025 Binaya Kumar Lamichhane Scenario Assessment Valid EGU-GEM Summer School 2025 Binita Shahi Scenario Assessment Valid EGU-GEM Summer School 2026 Bogdan Gheorghe Scenario Assessment Valid EGU-GEM Summer School 2026 Daniel Alejandro Caicedo Diaz Scenario Assessment Valid EGU-GEM Summer School 2025 Daniel Dreier Scenario Assessment Valid EGU-GEM Summer School 2025 Daniel Tomic Scenario Assessment Valid EGU-GEM Summer School 2025 Dr. Mayuri Borah Scenario Assessment Valid EGU-GEM Summer School 2026 Genio Lay da Silva Scenario Assessment Valid EGU-GEM Summer School 2026 Hasan Efendi Scenario Assessment Valid EGU-GEM Summer School 2026 Houda Delleci Scenario Assessment Valid EGU-GEM Summer School 2025 Jarod Domenge Scenario Assessment Valid EGU-GEM Summer School 2025 Jorge Luis Paredes Estacio Scenario Assessment Valid EGU-GEM Summer School 2026 Katia Veronica Vila Mamani Scenario Assessment Valid EGU-GEM Summer School 2026 Khatereh Saghatforoush Scenario Assessment Valid EGU-GEM Summer School 2025 Lallawmawma Chawnghlut Scenario Assessment Valid EGU-GEM Summer School 2026 Leonardo Mateus Scenario Assessment Valid EGU-GEM Summer School 2026 Lisselyn Cordova Arias Scenario Assessment Valid EGU-GEM Summer School 2026 Maaike Fonteijn Scenario Assessment Valid EGU-GEM Summer School 2025 Octavi Gómez Novell Scenario Assessment Valid EGU-GEM Summer School 2025 Onur Ulku Scenario Assessment Valid EGU-GEM Summer School 2026 Rachel Preca Trapani Scenario Assessment Valid EGU-GEM Summer School 2025 S Vishal Gupta Scenario Assessment Valid EGU-GEM Summer School 2025 Sagar Khanal Scenario Assessment Valid EGU-GEM Summer School 2026 Seyhan Okuyan Akcan Scenario Assessment Valid EGU-GEM Summer School 2026

News GEM Contributes to SIGMA‑3 General Assembly on Nuclear Seismic Safety By: Jul 7, 2025 Jun 3, 2025 Share Facebook LinkedIn GEM participated in the first General Assembly of the SIGMA‑3 project, held in Espoo, Finland, as part of an international effort to advance seismic hazard assessment in support of nuclear safety. SIGMA‑3 is a multi-year research initiative focused on improving the science and methods used to assess seismic hazard and ground motion, particularly for critical infrastructure such as nuclear power plants. The project is supported by a consortium of European and international industry and regulatory bodies. Representing GEM were Marco Pagani, Head of Seismic Hazard, along with Zainab Asaad and Fahrettin Kuran, PhD students from IUSS Pavia. GEM’s participation contributes to SIGMA‑3’s goal of strengthening site-specific hazard estimates, with a focus on improving approaches to probabilistic seismic hazard analysis (PSHA), particularly in the Nordic region. GEM representatives contributed to technical discussions on methodologies and modelling, reinforcing the Foundation’s role in connecting academic research with real-world applications. Their input supports the ongoing refinement of hazard estimates for nuclear sites and promotes open, consistent frameworks for hazard modelling. Through its involvement, GEM is sharing open-source tools, data and expertise to help ensure that seismic risk modelling remains transparent, science-based and accessible. The collaboration highlights how GEM’s core values – openness, credibility and public good – align with the safety priorities of the nuclear energy sector. The next SIGMA‑3 General Assembly is scheduled for December 2025. GEM will continue to support the initiative’s progress toward more reliable seismic safety assessments for critical facilities. For more information, please visit: Sigma 3 Technical Program - sigma No images found. GALLERY 1/0 VIDEO RELATED CONTENTS

License Request Form You have chosen to get more information about: Global Vulnerability Model Vulnerability Please check the link below to see if this product already meets your your requirements before submitting your request for a license. Thank you. DOWNLOAD THE OPEN VERSION Summary of steps to obtain a license for the requested product. Fill in the application form below. Click Submit. Please check your email Inbox or Spam folder for the summary of your request. You will then be contacted by the GEM Product Manager with either a request for more information, or a request to sign the license. If you do not hear from us within 2 weeks, please send an email to product@globalquakemodel.org . REQUEST DETAILS A. Requesting party information First Name Last Name Role/Job Email Business type Business type Other business Sector Sector Other sector B. License agreement signatory information The signatory must be someone who is authorised to sign license agreements on your behalf such as your immediate supervisor, manager or legal officer. If you’re a PhD student, the signatory must be your adviser or a university officer in charge of license agreements or similar legal documents. Full Name of Signatory Position Company Email of Signatory Organisation name Complete Address C. Purpose of request GEM is able to offer products for free because of the support of our project partners, national collaborators and institutional sponsors. All of GEM’s products are freely available for public good, non-commercial use, but with different license restrictions. In most cases we release products under an open license (e.g., CC BY-SA or CC BY-NC-SA), which permits (re)distribution. In this case, we are granting access under a more restricted license that forbids distribution or disclosure and requires signing by GEM and the licensee in order to better assure accountability for the confidentiality of the information. In order for GEM to properly assess your request, please answer the following questions below. 1. Explain briefly how will the GEM product be used e.g. project, research including the expected results and the foreseen public benefit. Minimum 60 words. 2. Will you be able to share the results of your work with GEM? YES NO 3. Will you be able to provide feedback to GEM on the quality and usefulness of this product via a survey? YES NO D. Privacy Policy By submitting this form, you consent to the processing of your personal data in accordance with our Privacy Policy and the EU General Data Protection Regulation (GDPR). We are committed to safeguarding your information and ensuring it is only used for the purpose outlined in this form. You have the right to access, rectify, or delete your data at any time. For more information, please refer to our Privacy Policy. I agree Words: 0 Email us at product@globalquakemodel.org if you're experiencing problems submitting your application. Thank you. Submit Thanks for submitting! You will be contacted as soon as possible Incomplete data. Please fill in all required fields. Thank you.

News GEM News Briefs April - June 2023 By: Jun 28, 2023 Share Facebook LinkedIn A round-up of GEM's other notable activities over the past three months. GEM at Oasis Insight event, May 3-4 John Schneider and Andres Abarca joined Svetlana Stripajova, Earthquake Model Developer, Impact Forecasting for the presentation of the Canada Earthquake Model: A Case Study of Collaborative and Current Age Model Development. Through a unique collaboration with Natural Resources Canada (NRCan) and the Global Earthquake Model (GEM), Impact Forecasting has developed a multi-platform Canada Earthquake model using the Oasis model format and OED, based on the latest local science. The session explored how the recently released Canadian model (6th generation Seismic Hazard Model for Canada) includes fire following, liquefaction, landslides, and tsunami for increased insight into the earthquake risk. John and Andres at the Oasis Conference in London. GEM at the EGU event Kendra Johnson participated in the General Assembly 2023 of the European Geosciences Union (EGU), which was held at the Austria Center Vienna (ACV) in Vienna, Austria, and online from 23–28 April 2023. The assembly was open to scientists of all nations. The EGU General Assembly 2023 brought together geoscientists from all over the world in one meeting, covering all disciplines of the Earth, planetary, and space sciences. The EGU aims to provide a forum where scientists, especially early career researchers, can present their work and discuss their ideas with experts in all fields of geoscience. GEM Governing Board: June Meeting The GEM Governing Board meeting was held from June 15-16 in Bergamo, Italy. The meeting was highlighted by the confirmation of Helen Crowley as GEM Secretary General starting August 1st, replacing John Schneider. John who has held the Secretary General position since February 2016 will move to an advisory role. From left: Helen Crowley, John Schneider, Joerg Steffensen and Sonia Talwar. The June meeting included a meeting of the new GEM Advisory Board: below from left, Laurie Johnson (Laurie Johnson Consulting - expert in post-disaster recovery), Shanna McClain (NASA, Disasters Program Manager), and Sangeeta Singh (Professor of Urban Planning and Deputy Director of Centre for Disaster Studies Tribhuvan University - Institute of Engineering, Nepal). John Schneider presented reflections on his 7-½ years of leading the GEM Secretariat, which included the release of the first global earthquake hazard and risk maps (2018) and culminated in the second major release in June 2023. More on John’s contributions at: https://www.globalquakemodel.org/gemstories/bridging-science-and-Society%3A-reflections-of-a-geophysicist's-impact-on-global-seismic-understanding GEM at the 7th ECCOMAS Young Investigators Conference Vitor Silva participated in the 7th ECCOMAS Young Investigators Conference (YIC2023), which was held at the Faculty of Engineering of the University of Porto between June 19 and June 21, 2023. The ECCOMAS Young Investigators Conferences aimed to bring together young researchers and students working in various areas of computational science and engineering, providing them with a unique platform for exchanging knowledge and initiating future scientific collaborations. The organizers strongly believed that ECCOMAS YIC 2023 also offered young researchers an opportunity to develop their leadership skills and expand their professional and scientific networks. AGITHAR Stakeholder Workshop Kendra Johnson from GEM and Helen Crowley from Eucentre were among the attendees at the Accelerating Global Science in Tsunami Hazard and Risk (AGITHAR) Stakeholder Workshop held in London on May 16-17, 2023. The workshop aimed to foster collaboration and generate new ideas for tsunami probabilistic hazard and risk assessment. AGITHAR members presented the outcomes of the COST Action, stakeholders shared their practical experiences, and scholars showcased their latest research, making the event a valuable platform for knowledge exchange and inspiration. The workshop was hosted at University College, Gower Street, London. No images found. GALLERY DSC04271.JPG DSC04260.JPG DSC04195.JPG DSC04271.JPG 1/15 VIDEO RELATED CONTENTS

You have chosen to request a demo on: Global homogenised earthquake catalogue First Name Last Name Email Company or Institution Name Country Sector Provide Details I accept the license terms and the conditions of products use. Email us at product@globalquakemodel.org if you're experiencing problems submitting this form or if you have any inquiries. Thank you. Request Thanks for submitting! You will be contacted as soon as possible Add answer here

A collection of earthquake footprints and consequences from past events Products Global Earthquake Impact Database (GEID) A collection of earthquake footprints and consequences from past events Share Facebook LinkedIn Description As a part of the 2026 release of the Global Earthquake Risk Model, the GEM Foundation has compiled a collection of earthquake footprints and consequences from past events, with the hope that the data find wide use in research, education and general interest among many users. Each entry in the database includes the rupture source file, available information from recording stations and ground-motion models, for use in the OpenQuake Engine. Also, a description of the event and estimates of the impact (in terms of multiple metrics) are reported for each event. How to cite this work If you make use of this work, please cite both the publication and the data. Publication: Zarin Karim Zadeh, Vitor Silva, Catalina Yepes-Estrada, Martina Caruso, Emily So, David Wald, Kishor Jaiswal, Kristin Marano, Earthquake Spectra2026, 42, e70006. https://doi.org/10.1002/esp4.70006 Data: Zadeh ZK, Silva V, Yepes-Estrada C, Caruso M, So E, Wald D, Jaiswal K, Marano K (2026), GEM Earthquake Impact Database (v2026.0.0), [Data set]. Zenodo.https://doi.org/10.5281/zenodo.8425465 Available Versions The database is hosted as a repository that is continuously updated from members of the global community. The data is available under a CC BY-NC-SA 4.0 license. To access the information or collaborate to the database, click on the "Open Repository" button on the right panel. If your use case does not comply with the license terms, a license can be requested by clicking on the "License Request", where a specific agreement will be provided, depending on the use case. License information This product 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 v2025 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 Global EarthquakE ScEnarios (GEESE) Related publications 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.

Post Event List PURPOSE The purpose of this page is to provide GEM website visitors, researchers, loss modellers, and emergency and disaster risk reduction professionals with specific downloadable information related to red alert events based on USGS PAGER alerts. GEM promotes the sharing of seismic hazard and risk information with a wide range of stakeholders to enhance understanding of damaging earthquake events. This initiative aims not only to give an overview of the models, data and publications available in areas recently impacted by earthquakes, but also hopes to serve as a resource that can inform future risk reduction strategies. The information provided is intended solely for situational awareness purposes and is not aimed towards driving an official emergency response. Please contact your local authorities for further assistance related to official emergency response services and support. 10th August 2026 M7.4 Colombia On 10 August 2026, a Mw 7.4–7.5 earthquake struck the department of Chocó in Colombia, killing at least 335 people, injuring more than 4,600 others, leaving 111 confirmed missing and causing extensive damage across the country. The earthquake was felt across much of western and central Colombia and in parts of neighbouring Ecuador and Panama, and caused extensive damage in Cali, Pereira, Quibdó, Manizales, Armenia, Buenaventura, and other areas. [Source: https://en.wikipedia.org/wiki/2026_Colombia_earthquake] USGS PAGER Alert https://earthquake.usgs.gov/earthquakes/eventpage/us6000tjl2/pager Related GEM Products Name Description Global Seismic Risk Map Global earthquake risk, mapped with the latest science Active Faults Database A repository with global homogenised characteristics of active faults Global Seismic Hazard Map First seismic hazard map to depict seismic hazard globally, including the oceans South America Exposure Repository with the inventory of residential, commercial and industrial buildings in South America South America Hazard OpenQuake engine input model to perform hazard calculations for South America No content. Related GEM Publications Understanding seismic risk in Santiago de Cali (Colombia) for its application in risk management Earthquake-induced liquefaction and landslides in Cali, Colombia Modelling the Residential Building Inventory in South America for Seismic Risk Assessment Tipologías constructivas en Quito, Cali and Santiago de los Caballeros Seismic risk assessment for the residential buildings of the three major cities in Colombia: Bogotá, Medellín, and Cali Executive summary Urban seismic risk assessment for the cities of Quito, Cali and Santiago de los Caballeros Scenario selection for representative earthquakes in Quito, Cali and Santiago de los Caballeros Assessment of earthquake damage considering the characteristics of past events in South America Evaluación de Riesgo Sísmico para Santiago de Cali Model of seismic design regulations and lateral force coefficients for buildings in South America Exploring the seismic risk of the unreinforced masonry building stock in Antioquia, Colombia Modelling the Residential Building Inventory in South America for Seismic Risk Assessment No content. Other Related Products GEM Vulnerability Model for Colombia GEM's country risk profile for Colombia GEM's Country Risk Profile for Venezuela GEM Vulnerability Model for Venezuela GEM Exposure Model for Venezuela GEM's country risk profile for Japan GEM Exposure Model for Japan GEM Vulnerability Model for Japan GEM's country risk profile for Afghanistan GEM vulnerability model for Afghanistan GEM exposure model for Afghanistan (admin 1) Other Related Publications South America Risk Assessment (SARA) Project GEM's PSHA input model documentation for Middle East 1234 Yang et al. (2023) Probabilistic seismic hazard assessments for Myanmar and its metropolitan areas. Geoscience Letters, 10(1), 48 Tun et al. (2017) The Sagaing Fault, Myanmar. In A. J. Barber, K. Zaw, & M. J. Crow (Eds.), Myanmar: Geology, Resources and Tectonics (Vol. 48, p. 0). The Geological Society of London GEM's PSHA input model documentation for SouthEast Asia GEM's PSHA input model documentation for China GEM's PSHA input model documentation for China DISCLAIMER The information and data provided on this page are for informational purposes only. The Global Earthquake Model (GEM) Foundation makes no warranties, expressed or implied, regarding the accuracy, completeness, or reliability of the data. Users are responsible for their own interpretation and use of the information. GEM shall not be liable for any loss, damage, or injury arising from the use of, or reliance on, the information provided on this page. By downloading or utilising the data, users acknowledge and agree to these terms. The information presented on this page is provided by different organisations and governed by different licenses, please check the individual license before use. CONTACT US

News GEM Foundation Showcases Earthquake Solutions at WFP Innovation Accelerator Pitch Event By: Mar 27, 2024 Feb 16, 2024 Share Facebook LinkedIn Munich, Germany - February 16, 2024. Andrés Abarca Jiménez, GEM Product Manager, recently took the stage at the World Food Programme (WFP) Innovation Accelerator Pitch Event held in Munich, Germany, representing the Global Earthquake Model (GEM) Foundation. The event served as a pivotal platform to demonstrate the potential impact of GEM products in supporting humanitarian organisations such as the WFP in their vital work. Speaking at the event with a 3-minute pitch, Andres stressed the significance of forging strong partnerships with organisations like the WFP, leveraging innovative solutions to strengthen preparedness and response efforts, and ultimately making a positive difference in vulnerable communities worldwide. Reflecting on his participation, Andres shared insights into the challenges and rewards of presenting GEM's initiatives within a tight timeframe. "It takes hours to carefully craft every word, incorporate feedback, practice, and ultimately deliver a convincing pitch," he remarked. "The experience was both tense and very fun." Expressing gratitude towards the WFP team, fellow participants, and the GEM Foundation, Andres highlighted the importance of collaboration in addressing humanitarian challenges. "Hopefully, this represents an opportunity to establish long-term collaborations," he added, "to utilise GEM products to assist humanitarian organisations in better preparing and responding to earthquakes." The participation of GEM in such high-profile events underscores its ongoing commitment to enhancing global earthquake resilience and fostering partnerships for positive change. Watch the pitch event recording on YouTube: https://www.youtube.com/watch?v=bEiqYrc2K_I No images found. GALLERY 20240216_DEU_Innovation-Pitch-Event_Benjamin Härer_DSC03791.jpg 20240216_DEU_Innovation-Pitch-Event_Benjamin Härer_A7400469.jpg 20240216_DEU_Innovation-Pitch-Event_Benjamin Härer_A7400207.jpg 20240216_DEU_Innovation-Pitch-Event_Benjamin Härer_DSC03791.jpg 1/4 VIDEO RELATED CONTENTS