OpenQuake Map ViewerThe Global Earthquake Model (GEM) Global Seismic Hazard Map (version 2023.1) depicts the geographic distribution of the Peak Ground Acceleration (PGA) with a 10% probability of being exceeded in 50 years, computed for reference rock conditions (shear wave velocity, Vs30 , of 760-800 m/s). The map was created by collating maps computed using national and regional probabilistic seismic hazard models developed by various institutions and projects, in collaboration with GEM Foundation scientists.
By default this interactive map viewer presents the 2023.1 map on the right hand side of the comparison pane with the 2019.1 version on the left hand side.
The 2023.1 map represents an update from the previous release from 2019 and features improvements in most regions of the world, as well as a higher spatial definition (approx. 2.5X) compared to the previous version.
Please see the following page for further details:
https://www.globalquakemodel.org/product/global-seismic-hazard-map
Greenland model results copyright © 2023 FM Global; please contact FM Global c/o Hosam Ali at hosam.ali@fmglobal.com
K. Johnson, M. Villani, K. Bayliss, C. Brooks, S. Chandrasekhar, T. Chartier, Y. Chen, J. Garcia-Pelaez, R. Gee, R. Styron, A. Rood, M. Simionato, M. Pagani (2023). Global Earthquake Model (GEM) Seismic Hazard Map (version 2023.1 - June 2023), DOI: https://doi.org/10.5281/zenodo.8409647
The authors have endeavoured to ensure that the information in this product is as accurate as possible. However, they do not guarantee that the information herein is totally accurate or complete. Therefore, you should not solely rely on this information when making a decision involving human life, capital and movable and immovable properties. Users of the information provided herein assume all liability arising from such use. While undertaking to provide practical and accurate information, the authors assume no liability for, nor express or imply any warranty with regard to, the information contained hereafter. The values of seismic hazard in this map do not replace building actions defined in national building codes. Readers seeking this information should consult national databases. This hazard map is the combination of results computed using several hazard input models covering the vast majority of landmass. These models represent the best information publicly accessible, and the GEM Foundation recognises their credibility and authoritativeness. This hazard map results from an integration process that is solely the responsibility of the GEM Foundation