GEM1 Technical Reports

As a first step in developing a global earthquake model, a focused pilot project named GEM1 was launched to generate GEM’s first products and develop the initial IT infrastructure.
The GEM1 pilot project ran from January 2009 til March 2010 and was carried out through a collaboration between 5 insititutions [ETHZ, Eucentre, GFZ, NORSAR and USGS].

The main objective of GEM1 was to provide a basis upon which future development of the full GEM computing environment and product set could be built. The aim as set out in the GEM1 implementation plan was to largely use existing tools and datasets in hazard and risk and to connect them through a unified IT infrastructure. The results of the GEM1 project are therefore to be considered ‘proof-of-concept’ rather than final products, hence any resulting outputs should be conceived as conceptual only and are thus not suitable for application.

A suite of technical reports summarizes the main achievements of this pilot project and can be downloaded below. The suite comprises domain-specific reports on Hazard, Risk and IT describing the activities of the GEM1 teams involved in each of the three areas, and external technical reports on specific subjects, produced by collaborators in sub-contract projects. We recommend you to first read the Executive Summary, explaining the overall goals and results.

INTERNAL REPORTS

• Report 1 GEM1 Executive Summary
• Report 2 GEM1 Hazard: Overview of PSHA software
• Report 3 GEM1 Hazard: Description of Input Models, Calculation Engine and Main Results
  
• Report 4 “Best Practices” for Using Macroseismic Intensity and Ground Motion Intensity Conversion Equations for Hazard and Loss Models in GEM1
• Report 5 GEM1 Seismic Risk Report
  
• Report 5 GEM1 Seismic Risk Report [low resolution]
  
• Report 6 OpenGEM System Design Document

* Please note that on October 19th 2010, an updated version of Report 2 was uploaded.

EXTERNAL REPORTS

• Report E1 Ground Motion Prediction Equations for GEM1
• Report E2 Earthquake Model for the European-Mediterranean Region for the Purpose of GEM1
• Report E3 Data Interchange Formats for the Global Earthquake Model
• Report E4 User Needs Assessment for the Global Earthquake Model (GEM

Note: The reports have been optimized for double-sided printing

Disclaimer: The views and interpretations in the GEM1 technical reports are those of the individual author(s) and should not be attributed to GEM Foundation. The reports may be freely reproduced, provided that it is presented in its original form and that acknowledgement of the source is included. GEM Foundation does not guarantee that the information in this report is completely accurate, hence you should not solely rely on this information for any decision-making.