dbms [-a auth_match] [-f filter] [-n net] [-o orid_match] [-t twin] [-v] dbin
ms = log(Amp) + 1.66*log(delta) + 2.0 where: Amp - amplitude of the Rayleigh wave on the vertical component in micrometers; delta - distance between source and receiver in degrees;
The calculated magnitude is stored in netmag, origin and stamag tables.
FL - The lower cutoff frequency in hz. FLO - The order of the lower cutoff sideband. FH - The upper cutoff frequency in hz. FHO - The order of the upper cutoff sideband.By default, "0.025 7 0.1 7" filter is used.
Compute ms for 'india' databse for all origin records with 'auth'== "UCSD.*"; network is "knet"; filter data with "0.1 5 1.0 5" filter before computation.
dbms -a "UCSD.*" -f "0.1 5 1.0 5" -n "knet" india
Compute ms for knet database for 'orid' = 12* origins ; use default filter.
dbms -o "12.*" knet