global Body wave magnitude computed at CTBTO/IDC (mb) is calculated for seismic events from the time-defining primary body waves recorded at seismic stations at an epicentral distance between 20 and 105 degrees from the event. Body wave magnitude computed at CTBTO/IDC (mb) is calculated for seismic events from the time-defining primary body waves recorded at seismic stations at an epicentral distance between 20 and 105 degrees from the event. Location of the station specific Q table. If not specified then @DATADIR@/magnitudes/IDC/qfvc.ml will be used as fallback. {net}, {sta} and {loc} are placeholders which will be replaced with the concrete network code, station code and location code.