#!/bin/sh

#####
#   search Mech.list for RMTs in  rectangular region
#####

if [ $# -ne 4 ]
then
	echo Syntax: DOSEARCH Clat Clon Dlat Dlon
	echo   search region Clat-Dlat Clat+Dlat
	echo   search region Clon-Dlon Clon+Dlon
	exit 0
fi
CLAT=$1
CLON=$2
DLAT=$3
DLON=$4

#####
#    format of Mech.list
#    Date_Time     Lat    Lon     H    Mw  Stk Dip Rake Ref   Mod Auth
#19670721_091449  37.44  -90.44  15.0 4.04 350 60  135 ENG97 CUS SLU
#19670809_132500  39.90 -104.70   3.0 4.84 130 35  -90 BSSA81a CUS SLU
#####

cat Mech.list | \
	awk '{if ( $2 >= '"${CLAT}"' - '"${DLAT}"' &&
$2 <= '"${CLAT}"' + '"${DLAT}"' &&
$3 >= '"${CLON}"' - '"${DLON}"' &&
$3 <= '"${CLON}"' + '"${DLON}"' ) print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12 }'

#DOSCP