OpenQuake Map ViewerThe Global Earthquake Model (GEM) Global Seismic Hazard Map (version 2026.1) replaces the previous version (2023.1) released in June 2023. The map depicts the geographic distribution of the Peak Ground Acceleration (PGA) in g with a 10% probability of being exceeded in 50 years, computed for reference rock conditions (shear wave velocity, VS,30 of 800 m/s). The map was created by collating hazard results computed using national and regional probabilistic seismic hazard models developed by various institutions and projects, as well as by GEM Foundation scientists.
The 2026.1 map is the first probabilistic seismic hazard map to depict seismic hazard globally, including oceans.
By default this interactive map viewer presents the 2026.1 map on the right hand side of the comparison pane with the 2023.1 version on the left hand side.
Please see the following page for further details:
https://www.globalquakemodel.org/product/global-seismic-hazard-map
Johnson K, Bayliss K, Villani M, Brooks C, Styron R, Simionato M, Chen Y, Rood A, Pagani M (2026). Global Earthquake Model (GEM) Seismic Hazard Map (version 2026.1), DOI: https:// doi.org/10.5281/zenodo.20208536
The authors have strived to ensure that the information in this product is as accurate as possible. However, they do not guarantee that the information herein is completely correct or comprehensive. Therefore, you should not rely solely on this information when making decisions involving human life, capital, or movable and immovable property. Users of the information provided accept all liability resulting from such use. While aiming to deliver practical and precise information, the authors accept no liability for, nor do they imply any warranty regarding, 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 a combination of results computed using several hazard input models covering the landmass and the oceans. These models represent the best publicly accessible information, and the GEM Foundation recognises their credibility and authoritativeness. The hazard values computed offshore are affected by significant uncertainty that was not fully accounted for, given the extent of the area covered. This hazard map results from an integration process solely under the responsibility of the GEM Foundation.