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- EERI’s Earthquake Spectra releases Special Edition on GEM2018 Global Earthquake Hazard and Risk papers - GEM Foundation
News EERI’s Earthquake Spectra releases Special Edition on GEM2018 Global Earthquake Hazard and Risk papers By: Nov 25, 2020 Share Facebook LinkedIn Several peer-reviewed papers on the GEM2018 Global Earthquake Hazard and Risk Model are now available through EERI’s Earthquake Spectra Special Edition. The papers authored by various GEM collaborators from around the world describe how the global, regional and national hazard and risk models launched in December 2018 were developed. This special issue documents the supporting research critical to the development of the Global Seismic Hazard and Risk models by the GEM (Global Earthquake Model) Foundation, representing a major step in understanding earthquake risk globally. Seismic hazard and risk models are needed for accurate assessment of risks in order to promote risk reduction and mitigating actions, such as the improvement of building codes and construction practices, sustainable land use, emergency response, and protection of critical infrastructures, as well as risk transfer through insurance. “The publication of this special volume of papers in Earthquake Spectra marks another great milestone for GEM by revealing to the research community the underlying science and engineering that have gone into the Global Earthquake Maps completed in 2018 ,” said John Schneider, GEM Secretary General. A total of 16 papers can now be accessed at . To read the full press release, visit . No images found. GALLERY 1/1 Gallery VIDEO RELATED CONTENTS
- METIS Summer School on Seismic Hazard Analysis - GEM Foundation
News METIS Summer School on Seismic Hazard Analysis By: Mar 1, 2022 Share Facebook LinkedIn Applications are now being accepted for the METIS Summer School on Seismic Hazard Analysis, to be held at in Pavia (Italy) from 20th to 23rd June 2022. The Global Earthquake Model Foundation (GEM; www.globalquakemodel.org) and the University School for Advanced Studies (IUSS; www.iusspavia.it) will host a summer school on probabilistic seismic hazard analysis. The school, organized under the auspices of the METIS project (EU Euratom research and training program 2014-2018, grant agreement n°94512 - metis-h2020.eu), will be held in person1 and will consist of a series of lectures and hands-on laboratories. The goal of the school is to introduce the participants to the calculation of probabilistic seismic hazard and to recent methodologies developed in the framework of the METIS project. The topics offered will include an introduction to the main functionalities of the OpenQuake Engine (see www.globalquakemodel.org/openquake) and, GEM's tools for building components of a hazard input model, aftershock PSHA (Probabilistic Seismic Hazard Analysis), vector-valued PSHA and the conditional spectrum approach, and time-histories selection for engineering applications. The School targets PhD/Master students and other early-career researchers. Participation to the school is free. Participants are expected to cover their travel and accommodation costs. The maximum number of participants is 20. Applications to the summer school can be submitted by filling the form available at the following link: . The application deadline is April 15, 2022.* More about the call at . ____________________ *We are monitoring the Covid-19 situation and will adapt accordingly. No images found. GALLERY 1/0 Gallery VIDEO RELATED CONTENTS
- USGS presentation by GEM’s Vitor Silva: Annual Risk Community of Practice Meeting - GEM Foundation
News USGS presentation by GEM’s Vitor Silva: Annual Risk Community of Practice Meeting By: Sep 21, 2020 Share Facebook LinkedIn USGS office Vitor Silva recently participated in the virtual USGS Annual Risk Community of Practice Meeting to share his experiences at GEM on the meaning of risk analysis, how it is done, and what it looks like in the end. Vitor was joined by three other Risk Analysis panel speakers - Robyn Wilson of Ohio State University who discussed the development of strategic communication efforts, and the design of decision support tools that assist individuals in making more informed choices; Megan Linkin of Swiss Re who discussed innovative parametric solutions to cover natural catastrophe exposure for a range of client segments, including public sector buyers and large corporates; and Katherine Greig of Flood Re who discussed recovery and resiliency focused on climate change, flood insurance, and building mitigation. The Risk Analysis Panel sessions tackled the tools of the trade, current state of knowledge, processes used in risk analysis, risk analysis in structured decision-making and some examples of products and applications being used for analyzing risks. Vitor shared his experiences in the development of several vulnerability and risk studies at the urban, national and global scale; the assessment of the impact of earthquakes in dozens of regions around the world, and capacity building events he had conducted with the GEM team covering more than 500 participants from more than 60 countries. He also discussed his most recent research that focused on the integration of machine learning in risk analysis, forecasting of earthquake risk into the future and interaction of natural hazards and the ongoing COVID19 pandemic. The Risk Analysis Panel discussions concluded with planning for the next year’s meeting. Topics discussed in three breakout groups ranged from how to effect knowledge transfer as a community; how to facilitate making connections across a virtual space; and what’s needed as a community to build capacity in risk research and applications. Vitor’s full presentation is available . No images found. GALLERY Vitor Silva presenting at a USGS webinar Vitor Silva presenting at a USGS webinar 1/1 Gallery VIDEO RELATED CONTENTS
- GEM Governing Board Approves New Public Sponsorship Scheme and Elects Vice Chair - GEM Foundation
News GEM Governing Board Approves New Public Sponsorship Scheme and Elects Vice Chair By: Dec 17, 2024 Dec 6, 2024 Share Facebook LinkedIn GEM’s Governing Board convened for its Winter Meeting on 5–6 December 2024, marking a significant step forward in the organisation's mission to strengthen global resilience against earthquake risks. The meeting, held in Pavia and virtually, brought together board members, public and private sponsors and partners, and GEM Secretariat staff to discuss governance, evaluate ongoing activities, and chart strategic priorities for 2025. A key highlight was the approval of a revised public sponsorship scheme aimed at enhancing inclusivity and collaboration. The updated structure introduces a tiered system, providing flexible public sponsorship options to ensure that the public sector can continue to play a meaningful role in shaping GEM’s work. The changes also include provisions for in-kind sponsorship opportunities, allowing public entities from low- and middle-income countries to join the Governing Board. This initiative is expected to balance public-private collaboration, which has been a cornerstone of GEM’s operations since its inception. Keep an eye out for more information about the new scheme in early 2025. Another key development was the election of Daniela Di Bucci of Italy’s Department of Civil Protection as Vice Chair of the Governing Board. Daniela brings extensive expertise in earthquake science, disaster risk reduction and public policy to her new role. She succeeds Sonia Talwar of the Geological Survey of Canada, who served as Vice Chair for over three years. “Daniela’s appointment comes at a critical juncture as we expand our global partnerships and implement the new public sponsorship framework,” Helen stated. “Her experience will be invaluable in driving these efforts.” GEM Secretary General Helen Crowley expressed gratitude for Sonia’s contributions, noting her leadership in advancing GEM’s strategic objectives. Reflecting on her tenure, Sonia added, "It has been an honor to serve as Vice Chair of GEM’s Governing Board for the past three and a half years. GEM’s collaborative work with NRCan and the global community has driven critical advancements in seismic hazard and risk research. I’m proud of what we’ve accomplished together and look forward to seeing GEM continue to address shared challenges and build resilience globally." The meeting concluded with a call for renewed commitment from GEM’s partners to address the evolving challenges of seismic risk. The Secretariat presented updates on key projects and activities and outlined plans to expand outreach efforts through increased engagement with public sector stakeholders. With the revised public sponsorship scheme and a renewed leadership team, GEM continues to position itself as a trusted partner in seismic hazard and risk reduction, offering cutting-edge tools and insights to support safer, more resilient communities worldwide. To learn more about GEM’s ‘past, present, and future’ programs, download the paper: “A Brief Overview of the Past, Present, and Future of the Global Earthquake Model (GEM) Foundation” . No images found. GALLERY 1/8 VIDEO RELATED CONTENTS
- South Asia Exposure | GEM Foundation
License Request Form You have chosen to get more information about: South Asia Exposure Exposure 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. 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 C. 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.
- Potential impact of earthquakes during the 2020 COVID-19 pandemic | GEM Foundation
Publications Potential impact of earthquakes during the 2020 COVID-19 pandemic Share Facebook LinkedIn Download 2020 | Peer-reviewed The 2020 COVID-19 pandemic caused a human and economic impact of unprecedented magnitude in contemporary history. In an effort to reduce the rate of infection, most governments implemented measures to increase social distancing and to strengthen the capacity of the healthcare system. The occurrence of earthquakes coincident with the pandemic may prevent the effective practice of such measures, and consequently cause an increase in the virus spread. This study analyzes the potential impact that seismic events may have on the infection rate within regions afflicted by both epidemics and earthquakes and explores open software packages that can be employed to simulate the impact of future destructive earthquakes on the spread of an emerging virus. Recent data on the number of confirmed cases at the national or subnational level were combined with a global seismic hazard and risk map to produce a combined index. This index highlights regions where preparedness and contingency plans should be developed to account for the possibility of COVID-19 outbreaks due to the earthquake impact.
- Dominican Republic Hazard | GEM Foundation
License Request Form You have chosen to get more information about: Dominican Republic Hazard Hazard 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. 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 C. 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.
- OpenQuake Underlying Hazard Science | GEM Foundation
Publications OpenQuake Underlying Hazard Science Share Facebook LinkedIn Download 2014 | Report This chapter provides an overview of the OpenQuake-engine (OQ-engine), its structure and the processes adopted for its development. A particular emphasis is placed on transparency, reproducibility, community-based development and testing (Pagani et al., 2014a), the central tenets of the development process adopted since the early stages of the project.
- 22nd January 2024 M7.0 Aykol, China
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. 22nd January 2024 M7.0 Aykol, China On 23 January 2024, at 02:09 CST (18:09 UTC on 22 January), a Ms 7.1 or Mw 7.0 earthquake occurred in Uqturpan County, also known as Wushi County, in Xinjiang, China, near the border with Kyrgyzstan. Source: https://en.wikipedia.org/wiki/2024_Uqturpan_earthquake USGS PAGER Alert https://earthquake.usgs.gov/earthquakes/eventpage/us7000lsze/pager Related GEM Products Name Description Global Seismic Hazard Map Openly accessible global datasets and plots for peak ground acceleration with a return period of 475 years on rock East Asia Exposure Repository with the inventory of residential, commercial and industrial buildings in East Asia Global Seismic Risk Map A milestone in global earthquake risk assessment China Hazard OpenQuake engine input model to perform hazard calculations for China No content. Related GEM Publications Development of a Fragility Model for the Residential Building Stock in South America Calibrating collapse and fatality rates for the assessment of fatalities due to earthquakes A Database and Empirical Model for Earthquake Post Loss Amplification User guide Android mobile tool for field data collection Variable resolution probabilistic modeling of residential exposure and vulnerability for risk applications Earthquake-induced liquefaction and landslides in Cali, Colombia Development of the Earthquake Risk Model for Myanmar Seismic Risk Model for the Beijing–Tianjin–Hebei Region, China-Considering Epistemic Uncertainty from the Seismic Hazard Models Strain partitioning in the Southeastern Tibetan Plateau from kinematic modeling of high-resolution Sentinel-1 InSAR and GNSS A township-level exposure model of residential buildings for mainland China Seismic Risk Model for the Beijing–Tianjin–Hebei Region, China-Considering Epistemic Uncertainty from the Seismic Hazard Models A township-level exposure model of residential buildings for mainland China Appraising the PSHA earthquake source models of Japan, New Zealand, and Taiwan Significant Seismic Risk Potential From Buried Faults Beneath Almaty City, Kazakhstan, Revealed From High-Resolution Satellite DEMs Material didáctico para sensibilizar a la comunidad sobre el riesgo sísmico. Aplicación para el Área Metropolitana del Valle de Aburrá (AMVA) Ranking and developing ground-motion models for Southeastern Africa No content. Other Related Products GEM's country risk profile for Afghanistan GEM vulnerability model for Afghanistan GEM exposure model for Afghanistan (admin 1) GEM vulnerability model for Russia test GEM's country risk profile for Myanmar GEM vulnerability model for Myanmar GEM exposure model for China (admin 1) GEM vulnerability model for China GEM's country risk profile for China GEM exposure model for China (admin 1) GEM vulnerability model for China GEM's country risk profile for China GEM vulnerability model for Japan GEM exposure model for Japan (admin 1) GEM's country risk profile for Japan Japan Seismic Hazard Information Station GEM Earthquake Scenario Database (Japan events) Other Related Publications 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 GEM's PSHA input model documentation for Japan 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
- Variable resolution probabilistic modeling of residential exposure and vulnerability for risk applications | GEM Foundation
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.





















