The GEM Database of Seismic Hazard Models

Here you can find information about the OpenQuake-engine implementation of different seismic hazard models around the world.

The models provided herein represent GEM's interpretation of the original models proposed by National Agencies and International Projects. These models were created by GEM, in the attempt of reproducing in the most faithful way possible the original models but they ARE NOT intended to be an alternative nor a replacement implementation of the original models.

GEM provides them recognising importance, authoritativeness and, transparency of the original models, for the purpose of open collaboration and in the hope that it will be useful to the scientific, engineering, disaster risk and software design communities.

Scroll down to find the links where you can learn more about each hazard model. Example results computed for each of these models can be accessed through the hazard models explorer available in the OpenQuake-platform.

operating instructions

Various functions are available as part of the map.

mouse/touch operation
  • moving by grabbing the map with a mouse-click you can move the map around
  • overview map using the + button in the bottom right of the map you can expand an overview map
  • zooming in and out using the + and - buttons in the top left of the map you can obtain more or less detail in the map
  • switching themes or maps clicking on the ≡ icon on the right-hand side of the map you can view and select available maps and themes
  • retrieving information the map may contain elements that contain more information, by clicking these a popup will show this information
  • fullscreen display using the ✈ button the map can be maximized to fullscreen display, use the ✕ button to return to page display.
keyboard operation

Keyboard operation becomes available after activating the map using the tab key (the map will show a focus indicator ring).

  • moving using the arrow keys you can move the map
  • overview map using the + button in the bottom right of the map you can expand an overview map
  • zooming in and out using the + and - buttons in the top left of the map or by using the + and - keys you can obtain more or less detail in the map
  • switching themes or maps clicking on the ≡ icon on the right-hand side of the map you can view and select available maps and themes
  • retrieving information the map may contain elements that contain more information, using the i key you can activate a cursor that may be moved using the arrow keys, pressing the enter will execute an information retrieval. press the i or the escape key to return to navigation mode
  • fullscreen display using the ✈ button the map can be maximized to fullscreen display, use the ✕ button to return to page display.

It's possible that some of the functions or buttons describe above have been disabled by the page author or the administrator

 

Total occurrence rate
(number of events / year)
  • < 1e-6
  • 1e-6 - 1e-5
  • 1e-5 - 1e-4
  • 1e-4 - 1e-3
  • 1e-3 - 1e-2
  • 1e-2 - 1e-1
  • 1e-1 - 1
  • 1 - 10
  • > 10









  1. EMCA (Earthquake Model for Central Asia) - For more information see the EMCA website
  2. EMME (Earthquake Model of the Middle-East) - For more information see the EMME website on the EFEHR portal

Several organisations, projects and individual researches contributed to the creation of this database of models. GEM expresses its gratitude to:

  • The Geological Survey of Canada for providing us with access to the 2005 and 2010 models
  • Geoscience Australia for making their 2012 model publicly available.
  • Geoter, BRGM and the French Ministère en charge du Développement Durable for making information about the Lesser Antilles (2002) model publicly accessible - Le site internet de la prévention du risque sismique
  • The authors of the Cuba (2003) model for providing access to it
  • GNS Science for sharing their 2012 hazard model for New Zealand
  • The National Research Institute for Earth Science and Disaster Prevention for making their 2012 model openly available and for the valuable collaboration offered
  • The RESIS II working group for giving us access to the RESIS II (2012) model
  • The large team of scientists which worked at the development of the SHARE (2013) model for Europe. Their contribution to the development of the OpenQuake-engine is also kindly acknowledged.
  • The Taiwan Earthquake Model for sharing with GEM their new model for Taiwan and for actively supporting and collaborating with GEM
  • The USGS National Seismic Hazard Mapping Project for making the following models publicly available: Alaska (2007), South East Asia (2007), United States (2008), South America (2010) and - more in general - for the openly sharing models and software
  • The members of the OpenSHA team (N. Field, P. Powers, K. Milner) for the valuable collaboration during the GEM1 project.
  • models.txt
  • Last modified: 2017/05/31 09:40
  • by God