added a script to calculate the moment magnitude from the output of QM #145
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…uakeMigrate. The approach follows that of various Abercrombie papers. QM functions are used to remove the instrument response. Then a new package (mtspec) is used to calculate calculate the spectra around the pick times. A brune-type source function is fit to the spectra. Functions are included to convert the corner frequency, long-period spectra level and attenuation parameter (Q) into moment, moment magnitude, radius and stress drop. Everything is output to a csv file in the "locate" directory. The script works and includes various options to customize the script. However, some functionality isn't implemented yet, but would be easy to add.
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I have changed the PR to point at the master branch, rather than develop (which is out of sync right now). |
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What is the purpose of this Pull Request?
To add functionality to calculate moment magnitudes
Relevant Issues
none
Test cases
This doesn't alter the core code, but instead adds a new folder scripts where scripts and functionality can be easily added
System details
macosx
Final checklist
developbase branch selected?CHANGES.md.CONTRIBUTORS.md.