#!/bin/csh
# $Id: job22.csh,v 1.12 2009/02/23 01:19:22 remko Exp $
# GMT EXAMPLE 22
#
# Purpose: Automatic map of last 7 days of world-wide seismicity
# GMT progs: gmtset, pscoast, psxy, pslegend
# Unix progs: cat, sed, awk, wget|curl
gmtset ANNOT_FONT_SIZE_PRIMARY 10p HEADER_FONT_SIZE 18p PLOT_DEGREE_FORMAT ddd:mm:ssF
# Get the data (-q quietly) from USGS using the wget (comment out in case
# your system does not have wget or curl)
#wget http://neic.usgs.gov/neis/gis/bulletin.asc -q -O neic_quakes.d
#curl http://neic.usgs.gov/neis/gis/bulletin.asc -s >! neic_quakes.d
# Count the number of events (to be used in title later. one less due to header)
set n = `cat neic_quakes.d | wc -l`
@ n--
# Pull out the first and last timestamp to use in legend title
set first = `sed -n 2p neic_quakes.d | awk -F, '{printf "%s %s\n", $1, $2}'`
set last = `sed -n '$p' neic_quakes.d | awk -F, '{printf "%s %s\n", $1, $2}'`
# Assign a string that contains the current user @ the current computer node.
# Note that two @@ is needed to print a single @ in pstext:
#set me = "$user@@`hostname`"
set me = "GMT guru @@ GMTbox"
# Create standard seismicity color table
cat << END >! neis.cpt
0 red 100 red
100 green 300 green
300 blue 10000 blue
END
# Start plotting. First lay down map, then plot quakes with size = magintude/50":
pscoast -Rg -JK180/9i -B45g30:."World-wide earthquake activity": -Gbrown -Slightblue \
-Dc -A1000 -K -U/-0.75i/-2.5i/"Example 22 in Cookbook" -Y2.75i >! example_22.ps
awk -F, '{ print $4, $3, $6, $5*0.02}' neic_quakes.d \
| psxy -R -JK -O -K -Cneis.cpt -Sci -Wthin -H >> example_22.ps
# Create legend input file for NEIS quake plot
cat << END >! neis.legend
H 16 1 $n events during $first to $last
D 0 1p
N 3
V 0 1p
S 0.1i c 0.1i red 0.25p 0.2i Shallow depth (0-100 km)
S 0.1i c 0.1i green 0.25p 0.2i Intermediate depth (100-300 km)
S 0.1i c 0.1i blue 0.25p 0.2i Very deep (> 300 km)
V 0 1p
D 0 1p
N 7
V 0 1p
S 0.1i c 0.06i - 0.25p 0.3i M 3
S 0.1i c 0.08i - 0.25p 0.3i M 4
S 0.1i c 0.10i - 0.25p 0.3i M 5
S 0.1i c 0.12i - 0.25p 0.3i M 6
S 0.1i c 0.14i - 0.25p 0.3i M 7
S 0.1i c 0.16i - 0.25p 0.3i M 8
S 0.1i c 0.18i - 0.25p 0.3i M 9
V 0 1p
D 0 1p
N 1
>
END
# Put together a reasonable legend text, and add logo and user's name:
cat << END >> neis.legend
>
T USGS/NEIS most recent earthquakes for the last seven days. The data were
T obtained automatically from the USGS Earthquake Hazards Program page at
T @_http://neic/usgs.gov @_. Interested users may also receive email alerts
T from the USGS.
T This script can be called daily to update the latest information.
G 0.4i
# Add USGS logo
I USGS.ras 1i RT
G -0.3i
L 12 6 LB $me
END
# OK, now we can actually run pslegend. We center the legend below the map.
# Trial and error shows that 1.7i is a good legend height:
pslegend -Dx4.5i/-0.4i/7i/1.7i/TC -J -R -O -F neis.legend -Glightyellow >> example_22.ps
# Clean up after ourselves:
\rm -f neis.* .gmt*
