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ATLAS 2.0 is GEM’s new hazard data service that allows users to access and interact with the outputs from the GEM Global Mosaic, used to generate the Global Seismic Hazard Maps. Available for public-good and commercial applications, users can now access full sets of hazard curves that describe the intensity of ground-shaking for different soil conditions, at multiple return periods, all over the world.
KEY FEATURES
Global Coverage
Homogeneous coverage of the world with 3.6M sites on a hexagonal grid spaced every ~6.5 km, using Uber’s H3 geospatial indexing system.
Multiple Metrics
Ground-shaking intensity is available for peak ground acceleration (PGA) and spectral acceleration at periods of 0.2, 0.3, 0.6 and 1.0 seconds.
Soil Conditions
For each site, two sets of seismic hazard curves are available: for reference rock conditions and for site-specific conditions based on the USGS Global Vs30 Mosaic.
Access
Available through an interactive web platform allowing users to access the data graphically, or through an API for internal framework integration.
READY TO FIT YOUR NEEDS
ATLAS 2.0 simplifies the use of GEM Hazard Data for various applications. Whether you are looking for data to support your research, evaluate global portfolios of assets, complement structural design demands or provide your corporate clients with innovative insights; ATLAS is ready to fit your use case.
Public good
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Research
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Disaster Agencies
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Humanitarian
Commercial
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Insurance
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Engineering
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Corporate
ATLAS 2.0 results are calculated using GEM’s state-of-the-art, open-source software the OpenQuake Engine, collating results from regional models based on the best science available for each area.
BUILT WITH THE LATEST SCIENCE
FROM LOCAL TO GLOBAL
Embracing Collaboration and Credibility as core values, the models that make up the GEM Global Mosaic have been created either in close collaboration with regional experts, contributed by national authorities or implemented by GEM scientists. The outputs are computed consistently for all sites and then assembled at the global scale.
WHAT IS NEW?
ATLAS 1.0
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Created with data from the global model released in 2019
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Ad-hoc spatial grid with 9-12 km spacing
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Access through web platform only
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Three intensity measures (PGA, and spectral accelerations at periods of 0.2 and 1.0 seconds)
ATLAS 2.0
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Created with data from the global model released in 2023
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Uses H3 Geospatial grid with more stable ~6.5 km spacing (2.5X higher resolution)
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Access through web and API
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Five intensity measures (PGA, and spectral acceleration at periods of 0.2, 0.3, 0.6 and 1.0 seconds)