Global Seismic Hazard Map

The global seismic hazard map depicts the seismic hazard as peak ground acceleration (pga) with 10% probability of exceedence in 50 years, corresponding to a return period of 475 years. The compilation of the global seismic hazard map was based on the integration of all results from gshap regions and test areas in three greater gshap areas. This may be the first comprehensive global map of “seismic hazard” based on a consistent definition.

Seismic hazard is defined in purely geophysical terms. The global seismic hazard map is the result of global seismic hazard assessment program (gshap). The global seismic hazard map depicts the seismic hazard as peak ground acceleration(pga) with 10% probability of exceedence in 50 years, corresponding to a return period of 475 years.

The national oceanic and atmospheric administration's natural hazards viewer shows a variety of recent and historic natural hazards around the world.

The map above was created by collating maps computed using national and regional probabilistic seismic. On the map, the colors define different hazard zones, in each of which the probability of there being a certain level of ground acceleration in the next 50 years is at least 10%. The global seismic hazard database can be downloaded through the download data subsection which also provides details about the data, utilities for data plotting and other useful information. The national oceanic and atmospheric administration's natural hazards viewer shows a variety of recent and historic natural hazards around the world.