News News Briefs - July to September 2025 By: Oct 6, 2025 Sep 30, 2025 Share Facebook LinkedIn GEM Holds Annual Staff Retreat in Ceratello 20-21 September 2025 – Ceratello, Bergamo, Italy The Global Earthquake Model (GEM) Foundation held its annual staff retreat in the mountain village of Ceratello, Bergamo. The gathering provided space for reflection, exchange, and team-building ahead of an active year of projects and collaborations. Against the backdrop of Ceratello’s quiet mountain setting, the retreat offered staff an opportunity to reconnect outside daily routines and align around GEM’s mission. The event concluded with renewed energy and shared determination to translate ideas into action in support of global disaster risk reduction. Strengthening Partnerships with PHIVOLCS 29 August 2025 – Quezon City, Philippines Helen, representing GEM, met with Director Teresito Bacolcol of the Philippine Institute of Volcanology and Seismology (PHIVOLCS) to discuss partnership opportunities in hazard and risk modelling, training, and collaborative research. The meeting also covered offshore modelling, potential updates to the 2018 Philippine Hazard Model, and interest in OpenQuake training. In a separate meeting on 14 August, Jephraim Oro, GEM’s Communications Coordinator, met with Jeffrey Perez, Officer-in-Charge of the Geologic Disaster Awareness & Preparedness Division, to discuss GEM’s Learning Centre country page for the Philippines. These exchanges reinforced the importance of collaboration in advancing science-based resilience and strengthening national capacity. Exploring Collaboration at the Asian Development Bank 27 August 2025 – Manila, Philippines GEM, represented by Helen, met with the Asian Development Bank (ADB) in Manila to explore opportunities for collaboration. In discussions with the Climate Change, Resilience, and Environment Cluster’s Disaster Risk Management Team, topics included risk platforms, multi-hazard approaches, data accessibility, and capacity development, with GEM presenting its experience in seismic hazard and risk modelling and open-source tools such as the OpenQuake Engine. Later that day, Helen delivered the invited lecture “Engineering the Future: How Seismic Models Can Build More Resilient Societies”, which generated strong interest among ADB staff. The exchanges underscored the potential for applying GEM’s models to resilience planning across Asia. Earthquake Modelling at Zurich’s Advisory Council for Catastrophes August 2025 – Zurich, Switzerland Al Mouayed Bellah Nafeh, Physical Vulnerability Lead, and Lana Todorović, Liquefaction and Landslide Modeller, represented GEM at Zurich’s Advisory Council for Catastrophes (ACC) Meeting 2025. They were joined online by Marco Pagani, Head of Seismic Hazards, and Vitor Silva, Head of Risk Engineering. GEM presented its collaboration with Zurich on earthquake models covering ground shaking, liquefaction, and landslides, developed with open data, models, and scientific expertise. The ACC brings together academia and industry to examine multi-peril scenarios and their implications for risk management. GEM’s contribution highlighted how earthquake risk research can inform practical applications, supporting stronger strategies for resilience. GEM Presents at Aon CAT Analytics Workshop in Milan 2 October 2025 – Milan, Italy GEM contributed to the 1st Aon CAT Analytics Workshop, “Beyond Models: Advanced Catastrophe Analytics for Natural Hazards”, held at Aon’s offices in Milan. GEM Secretary General Helen Crowley presented “The Path to the 2026 Global Release”, outlining progress toward GEM’s upcoming global seismic risk model. Marco Pagani, Head of Seismic Hazard, spoke on GEM’s new global stochastic event set and recent advances in hazard modelling. The workshop gathered experts from Aon and Impact Forecasting to discuss next-generation catastrophe models, automated event response, and data innovation. GEM’s participation highlighted the importance of open, science-based hazard and risk models in strengthening catastrophe analytics for the insurance and reinsurance sectors. Seismic Risk in Islands Highlighted at IDRiM 2025 28 September-1 October 2025 – Samos, Greece GEM took part in the 15th International Conference of the Integrated Disaster Risk Management (IDRiM) Society, held in Samos under the theme “Advancing disaster risk reduction in islands and remote areas.” Catalina Yepes-Estrada, GEM’s Exposure Development Lead, presented “Understanding Seismic Hazard and Risk in Islands and Remote Areas,” addressing the distinct vulnerabilities of geographically isolated regions. The conference examined how accessibility – physical, social, and institutional – shapes disaster preparedness and response. GEM’s participation underscored the value of open models, shared knowledge, and collaborative approaches in strengthening resilience, particularly in contexts where resources and access remain limited. Multi-Risk Perspectives Shared at RETURN Autumn School 22-26 September 2025 – Sestri Levante, Italy Vitor Silva, Head of Risk Engineering at GEM, took part in the PhD Autumn School organised under the RETURN (Multi-Risk Science for Resilient Communities under a Changing Climate) project. The event, hosted at the former Convent of the Annunziata, brought together early-career researchers working on seismic and flood risk in urban settings, emphasising cross-cutting lectures, hands-on workshops, and a “3-Minute Flash Talk” competition. Participants explored interactions among hazards, exposure, vulnerability, and climate effects in the context of multi-risk modelling. GEM’s involvement highlighted the value of integrating earthquake risk techniques within broader climate resilience research. Photo credit: Vitor Silva Global Forecasting Dialogue in Shenyang 8-11 July 2025 – Shenyang, Liaoning, China Marco Pagani, Head of Seismic Hazards, represented GEM at the International Symposium on Earthquake Forecasting, held in Shenyang to commemorate the 50th anniversary of the 1975 Haicheng M7.3 earthquake. The symposium convened over 300 experts from 38 countries to discuss advances in earthquake predictability, scientific innovation in forecasting, and their role in disaster risk reduction. Organised by the China Earthquake Administration’s Institute of Earthquake Forecasting, the event aimed to bridge past successes with new technologies and global cooperation in forecasting science. GEM Participates in Oasis Insight Conference 2025 25 September 2025 – Paris, France GEM joined experts from the insurance, modelling, and risk sectors at the Oasis Loss Modelling Framework Ltd. Insight Conference at the SCOR offices in Paris. GEM was represented by Product Manager, Pratim Kalita, who engaged in discussions on natural catastrophe risk in Europe, including perils ranging from windstorms and hailstorms to earthquakes. The one-day event provided a platform for knowledge exchange on emerging challenges and opportunities in catastrophe modelling. GEM’s participation highlighted its role in connecting scientific models with practical risk applications, contributing to stronger collaboration between research and industry to inform risk management and resilience strategies. Future Earthquake Loss Scenarios at Asia NAT CAT & Climate Change Conference 25-26 August 2025 – Bangkok, Thailand Helen Crowley, Secretary General of the Global Earthquake Model (GEM) Foundation, delivered a keynote address at the 21st Asia NAT CAT & Climate Change Conference, organised by Asia Insurance Review. Her presentation, “Projecting Earthquake Risk to 2065: Exposure, Losses, and the Carbon Cost of Disasters,” examined future earthquake loss scenarios in the Asia-Pacific under different Shared Socioeconomic Pathways (SSPs). The analysis highlighted how exposure, policy choices, and development patterns will shape both human and economic losses, as well as the carbon footprint of damaged infrastructure. GEM’s contribution underscored the role of open, collaborative science in guiding risk-informed investment and long-term resilience strategies across the region. No images found. GALLERY 1/0 VIDEO RELATED CONTENTS

News The Global Earthquake Model: Achievements and Future Directions By: Mar 16, 2022 Share Facebook LinkedIn Geoscience Australia (GA), a long-time supporter and public sponsor of GEM, recently held its Public Talks Series 2022 where GEM Secretary General, John Schneider was invited to discuss GEM's contribution to improving the state of knowledge of earthquake risk and the broader objectives of the disaster risk reduction community through its global collaboration network and development of open, global databases and software for application to earthquake and multi-hazard risk assessment. John highlighted GEM’s key achievements particularly its two flagship products: the hazard and risk calculation software - the OpenQuake engine, and the global mosaic of earthquake hazard and risk maps released in 2018, where Australia’s national hazard and risk model was prepared by Geoscience Australia. To date, these flagship products have accumulated combined downloads of close to 4000 times since GEM started tracking this metric in late 2019. On the topic of the GEM-Geoscience Australia partnership since 2010, John said that the impact was on the complementation of GEM’s tools and software with GA’s need to focus more on earthquake science and data analysis instead of software development. The result, he added, was a great improvement in the earthquake hazard model development for Australia, and OpenQuake engine’s hazard and risk calculators. As part of GEM’s roadmap to 2030, John reiterated that GEM will continue to strive to maintain its leadership in earthquake risk assessment and knowledge dissemination, and at the same time further develop into a global leader in integrated, multi-hazard risk assessment and resilience planning. Presenting the evolutionary process from hazard data to integrated risk solutions, John pointed out that GEM’s research and applications are gradually moving toward the assessment of systemic risks, integrated risk assessments and risk reduction solutions. He added that GEM’s substantial contribution to the broader objectives of the disaster risk reduction community was through the acceleration of the merging of the public and private sectors to work together to fully assess risk and incorporate risk-based decisions into planning and sustainable development. He said that to this end, GEM spearheaded the development of common tools and solutions, and provided a range of products and services for the disaster risk management and reduction community. The webinar - joined by about 70 online and on-site individuals - was held on March 2 and organized by Geoscience Australia - a GEM supporter and public sponsor since 2010. Watch John’s presentation at . No images found. GALLERY 1/0 Gallery VIDEO RELATED CONTENTS

News GEM at EERI Webinars 2020 By: Nov 25, 2020 Share Facebook LinkedIn The Earthquake Engineering Research Institute (EERI) organized several webinars in October and November, two of which highlighted GEM’s work on the global earthquake model and a study on the potential impact of earthquakes during the ongoing COVID-19 pandemic. On October 23rd, EERI’s e-Meet the Leaders event featured GEM’s Vitor Silva as a special guest where he shared his experience in structural vulnerability and probabilistic seismic risk assessment in Europe, Latin America, Sub-Saharan Africa, and the Middle East. He also talked about the development of the first comprehensive global seismic risk model released in December 2018. On November 19th, GEM, represented by Vitor Silva and Nicole Paul, participated in the EERI’s webinar on Earthquakes in Pandemics: Experiences from Earthquakes in Europe. The webinar focused on the potential impact of earthquakes on infection rates and disaster response, based on case studies in Europe (Portugal and Croatia). Vitor and Nicole presented their recent article in Earthquake Spectra titled, “Potential Impact of Earthquakes during the 2020 COVID-19 Pandemic.” Joining them were two other panelists who were in Zagreb during the March 2020 earthquake (M5.5) and were heavily involved with the impact assessment following the earthquake. The juxtaposition of a theoretical analysis with empirical observation of the coincident pandemic and earthquake impact in Zagreb demonstrated the importance of understanding the combined impact of natural disasters during the pandemic, or other events that can easily overwhelm local capacity to respond effectively. Founded in 1948, EERI's mission is to reduce earthquake risk by (1) advancing the science and practice of earthquake engineering, (2) improving understanding of the impact of earthquakes on the physical, social, economic, political, and cultural environment, and (3) advocating comprehensive and realistic measures for reducing the harmful effects of earthquakes. No images found. GALLERY 1/4 Gallery VIDEO RELATED CONTENTS

GEM Online news GEM Online News Coverage Search Reset Resilience Performance Scorecard Workshop in Yangon Dr. Carlos Villacis and Dr. Christopher Burton of the Global Earthquake Model (GEM) Foundation introduced the Resilience Performance Scorecard, a self-evaluation tool for cities based on the “Ten Essentials for Making Cities Resilient”... https://ggsurbanresilience.org/ GEM featured on OASIS website Oasis Loss Modelling Framework and GEM have been working closely for many years. OASIS and GEM approaches and offerings are complementary, which opens interesting possibilities... https://oasislmf.org Application of Statistical Learning Models for Efficient Seismic Risk Assessment of Large Property... In this paper, AIG researchers introdcue surrogate models to significantly reduce the computational requirements in exchange for manageable errors in predicting the portfolio losses using OQ… https://ascelibrary.org 1 2 3 4 5 1 ... 1 2 3 4 5 6 7 8 9 10 11 12 ... 12

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The first global view of earthquake-triggered liquefaction Products Global Liquefaction Hazard The first global view of earthquake-triggered liquefaction Share Facebook LinkedIn Description The Global Liquefaction Map shows the annualised rate of exceeding a liquefaction spatial extent (LSE) of 20% — a threshold indicative of severe surface manifestation. The map is provided at a spatial resolution of 30 arc-seconds (~ 1 km at the equator). Seismic hazard data is integrated with geospatial liquefaction models, accounting for epistemic uncertainty to estimate global liquefaction hazard. The map is computed using the event-based calculator of the OpenQuake Engine, an open- source software for hazard and risk assessment developed by the GEM Foundation, which aggregates earthquake impacts across a set of scenarios into a long-term annualised metric. This dataset is currently available to download as a Raster, Poster and PNG file. A global dataset of roads from OpenStreetMap (OSM) has been overlain with GEM's v2026.1 Global Maps of Seismic Hazard and Liquefaction (see the Geoviewer link on the right) and the results in terms of the top 15 countries and territories according to road length, roads exposed to high ground shaking (PGA>0.3g), and roads exposed to severe liquefaction are also summarised in the downloadable poster. How to cite this work Liquefaction Data: Todorović, L., Costa, C., Rao, A.& Silva, V. (2026). Global Earthquake Model (GEM) Global Liquefaction Hazard Map (Version v2026.1) [Dataset]. Zenodo. https://doi.org/10.5281/zenodo.21650026 Poster: Todorović L, Costa C, Rao A, Silva V (2026). Global Earthquake Model (GEM) Global Map of Liquefaction and Road Exposure (version 2026.1), https:// doi.org/10.5281/zenodo.20208650 Available Versions A raster file of the global liquefaction hazard is available for direct download under a CC BY-NC-SA license. A PDF poster, as well as a high-resolution PNG of liquefaction hazard, is available for direct download under a CC BY-SA license. If your use case does not meet the open license requirements, or if you are interested in obtaining the underlying dataset as a shapefile, please submit a request in our system by clicking on the "License Request", where a specific license will be provided, depending on the use case. License information This product is available under multiple Creative Commons licenses (depending on the format), which may require some of the following: 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 and requires a license agreement that must be made tailored to your use case, in such instance please click on "License Request". Facebook LinkedIn Share Latest Version v2026.1 License CC BY-SA 4.0/CC BY-NC-SA 4.0 Available resources Open Version Download Geoviewer PNG Poster Download License Request Contributors 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 Liquefaction Hazard OpenQuake Engine Global Seismic Hazard Map Global Map of Road Exposure to Ground Shaking and Liquefaction Global Exposure Model Global Vulnerability Model Global Seismic Embodied Carbon Risk Global Seismic Risk Map Country-Territory Seismic Risk Profiles 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.

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News EERI YMC Webinar: Training and Communication for Earthquake Risk Assessment (TREQ) Project and Applications for Urban Risk Assessment By: Jun 28, 2023 Share Facebook LinkedIn GEM scientists and partners involved in the USAID-supported Training and Communication for Earthquake Risk Assessment (TREQ) project recently presented the project results at a webinar organized by the Earthquake Engineering Research Institute (EERI) on June 7th. TREQ was piloted in the cities of Quito (Ecuador), Cali (Colombia), and Santiago de los Caballeros (Dominican Republic) from 2020-2022. TREQ developed state-of-art models for each city in close collaboration with local stakeholders, backed by several technical reports. City profiles have also been prepared for emergency planning activities including multiple earthquake scenarios. For the Dominican Republic, a national seismic hazard model was developed in collaboration with the Servicio Geológico Nacional (SGN) and local scientists. Several presentations from GEM highlighted the significant advancements in earthquake risk assessment and urban planning. Catalina Yepes-Estrada provided an overview of TREQ, covering topics such as hazard models, earthquake-induced liquefaction and landslides, urban risk models, and earthquake hazard scenarios. She emphasized the project's training and capacity building activities targeting different groups, with online workshops and collaboration with Latin American university professors. Kendra Johnson focused on developing a Probabilistic Seismic Hazard Analysis (PSHA) model for the Dominican Republic. The model was built in collaboration with local agencies, incorporating up-to-date data from the Servicio Geológico Nacional (SGN) and the Universidad Autónoma de Santo Domingo (UASD). The model as well as the report are open and can be accessed at https://www.globalquakemodel.org/proj/treq?tab=publications . Alejandro Calderon presented urban risk modeling in Quito, Cali, and Santiago de los Caballeros. The modeling process involved various data sources, including cadaster, housing census, and expert opinion. Fragility and vulnerability models were used to estimate structural damage, injuries, fatalities, and economic losses. Local fragility models were developed to address the unique construction characteristics of each city and comprehensive city risk profiles and scenarios were presented. The scenarios were done in collaboration with the USGS. Overall, the GEM presentations on the TREQ project and its applications showcased the importance of incorporating local data, capacity building, and collaboration for effective earthquake risk assessment and urban planning. Future webinars are being planned to provide more detailed insights into the activities of each city. The webinar, moderated by Prajakta Jadhav from the University of British Columbia, also featured speakers such as Robin Gee from PartnerRe (a former GEM team member who presented how to account for site-specific soil models in the OpenQuake engine, essential for urban-risk assessment), Kishor Jaiswal and Robert Chase from USGS. No images found. GALLERY 1/0 VIDEO RELATED CONTENTS

News Regional Dialogue on Seismic Risk in Istanbul By: Oct 6, 2025 Sep 23, 2025 Share Facebook LinkedIn The Global Earthquake Model (GEM) Foundation joined government officials, academics, and international organisations at the Joint Regional Workshop on Enhancing Seismic Risk Assessment Capacities in ECO Member States, held on 22-23 September 2025 in Istanbul. The workshop was convened by the Economic Cooperation Organization (ECO) Secretariat in collaboration with the Disaster and Emergency Management Authority of Türkiye (AFAD) and the Asian and Pacific Center for the Development of Disaster Information Management (APDIM), one of the GEM Foundation’s associate partners. It formed part of the implementation of the ECO Regional Framework on Disaster Risk Reduction (ECORFDRR). The two-day event gathered participants from 22 countries, along with representatives from UNDRR, the Asian Development Bank, and other partners. Discussions focused on enhancing technical capacity in seismic risk assessment, integrating socioeconomic vulnerability into models, and strengthening cooperation on data sharing and risk information systems. GEM’s Role Representing GEM, Seismic Risk Modelling Lead Anirudh Rao presented during Session 2 on Seismic Risk Assessment Methodologies. The session provided an overview of the components of innovative seismic risk assessments, focusing on probabilistic seismic hazard analysis (PSHA), the development and application of vulnerability and fragility functions, the collection and analysis of exposure data, and the integration of socioeconomic dimensions of risk. By sharing GEM’s global experience, he demonstrated how harmonised approaches and open-source tools such as the OpenQuake Engine can be adapted to support national and regional initiatives. Outcomes and Next Steps The workshop highlighted key challenges faced by ECO Member States, including the lack of standardised data, limited financial resources, and the need for regional collaboration. Recommendations included greater interoperability of risk data platforms, investment in capacity building, and stronger integration of social vulnerability and economic impacts into seismic risk models. For GEM, participation reinforced its commitment to open science and international cooperation. By engaging with regional partners, the Foundation continues to support efforts that bring together scientific advances and policy action in disaster risk reduction. For more details, visit the ECO Secretariat event summary. https://eco.int/eco-afad-and-apdim-organize-joint-regional-workshop-on-enhancing-seismic-risk-assessment-capacities-in-eco-member-states/ No images found. GALLERY 1/0 VIDEO RELATED CONTENTS