All of GEM’s products are freely available for public, non-commercial use, but with different license restrictions. Open and free distribution of data, models and tools will continue to be at the core of GEM’s work, and will further strengthen its efforts to broaden their availability and accessibility.
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Sub-Saharan Africa Hazard
Sub-Saharan Africa is part of GEM's Global Earthquake Hazard and Risk Maps released to the public in December 2018. As part of the mosaic, the seismic hazard, exposure and vulnerability models employed in the calculations were either provided by nati [..]
Sub-Saharan Africa Vulnerability
Vulnerability based on the most common building classes in the region; simplified numerical models for each building class; ground motion records using local strong motion databases, local seismicity and tectonic environment; and non-linear time hist [..]
Western Africa Hazard
The Western Africa model (WAF) was developed internally by GEM. The model encompasses the whole Atlantic side of the Africa continent. An ad-hoc homogenised earthquake catalogue was developed based on globally available information, which was used as primary base for seismic occurrence analysis and the subsequent development of the source zonation model.