gmspy is a python package for dealing with ground motions time-histories induced by earthquakes, including various intensity measures (IMs), elastic response spectra, constant ductility response spectra, pre-processing, etc.

To use, install gmspy from gmspy-PyPI:

pip install --upgrade gmspy

Document: https://gmspy.readthedocs.io/en/latest/

License

This software is published under the GPLv3 license.