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Python and OpenQuake-based Toolkit for Analysis of Strong Motions and Interpretation of GMPEs

GMPE Strong Motion Modeller's Toolkit (gmpe-smtk)

This is the web repository of the GMPE Strong Motion Modeller's Toolkit (gmpe-smtk). The gmpe-smtk is a suite of tools developed by Scientists working at the GEM (i.e. Global Earthquake Model) Model Facility.

The GMPE Strong Motion Modeller's Toolkit is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Please take a minute of your time to read the disclaimer below.

Copyright (c) 2014-2018 GEM Foundation


The software GMPE Strong Motion Modeller's Toolkit (gmpe-smtk) provided herein is released as a prototype implementation on behalf of scientists and engineers working within the GEM Foundation (Global Earthquake Model).

It is distributed 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.

The software is NOT distributed as part of GEM’s OpenQuake suite ( and must be considered as a separate entity. The software provided herein is designed and implemented by scientific staff. It is not developed to the design standards, nor subject to same level of critical review by professional software developers, as GEM’s OpenQuake software suite.

Feedback and contribution to the software is welcome, and can be directed to the hazard scientific staff of the GEM Model Facility (

The GMPE Strong Motion Modeller's Toolkit (gmpe-smtk) is therefore distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

The GEM Foundation, and the authors of the software, assume no liability for use of the software.


The gmpe-smtk is built on top of the OpenQuake-engine.

To install the toolkit, and ensure that it is aligned with the OpenQuake-engine we recommend to install the OpenQuake-engine for development. The full installation instructions for OpenQuake can be found here.

Once the OpenQuake-engine is installed, the gmpe-smtk repository is cloned by:

git clone

Then inside the virtualenv of the engine:

cd gmpe-smtk
# NB: first activate the virtualenv if it is not already active
python install

For users interested in developing new features or contributing code to the repository we strongly recommend to install the OpenQuake-engine according to the instructions for installing OpenQuake for development.

The gmpe-smtk requires Python 3.6.