SCOTER - Software package for multiple-earthquake relocation by using static and source-specific station correction terms

Cite as:

Nooshiri, Nima; Heimann, Sebastian; Tilmann, Frederik; Dahm, Torsten; Saul, Joachim (2019): SCOTER - Software package for multiple-earthquake relocation by using static and source-specific station correction terms. V. 0.1. GFZ Data Services. https://doi.org/10.5880/GFZ.2.1.2019.002

Status

I N R E V I E W : Nooshiri, Nima; Heimann, Sebastian; Tilmann, Frederik; Dahm, Torsten; Saul, Joachim (2019): SCOTER - Software package for multiple-earthquake relocation by using static and source-specific station correction terms. V. 0.1. GFZ Data Services. https://doi.org/10.5880/GFZ.2.1.2019.002

Abstract

We present SCOTER, an open-source Python programming package that is designed to relocate multiple seismic events by using direct P- and S-wave station correction terms. The package implements static and shrinking-box source-specific station terms techniques extended to regional and teleseimic distances and adopted for probabilistic, non-linear, global-search location for large-scale multiple-event location. This program provides robust relocation results for seismic event sequences over a wide range of spatial and temporal scales by applying empirical corrections for the biasing effects of 3-D velocity structure. Written in the Python programming language, SCOTER is run as a stand-alone command-line tool (requiring no knowledge of Python) and also provides a set of sub-commands to develop required input files (e.g. phase files, travel-time grid files, configuration) and export relocation results (such as hypocenter parameters, travel-time residuals) in different formats -- routine but non-trivial tasks that can consume much user time. This package can be used for relocating data sets in local, regional, and teleseimic scales.