• Antelope Release 5.5 Mac OS X 10.8.5 2015-04-21

 

NAME

dbms - compute ms magnitudes

SYNOPSIS


dbms [-a auth_match]
    [-f filter]
    [-n net]
    [-o orid_match]
    [-t twin]
    [-v]
    dbin

SUPPORT


Contributed code: NO BRTT support.
THIS PIECE OF SOFTWARE WAS CONTRIBUTED BY THE ANTELOPE USER COMMUNITY. BRTT DISCLAIMS ALL OWNERSHIP, LIABILITY, AND SUPPORT FOR THIS PIECE OF SOFTWARE.

FOR HELP WITH THIS PIECE OF SOFTWARE, PLEASE CONTACT THE CONTRIBUTING AUTHOR.

DESCRIPTION

dbms computes surface-wave magnitude ms based on the following equation:

        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.

OPTIONS

EXAMPLE

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

AUTHOR

Marina Glushko
Antelope User Group Contributed Software
Printer icon