File:2010 canterbury aftershocks by depth.svg
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Description2010 canterbury aftershocks by depth.svg |
English: Plot of 2010 Canterbury earthquake aftershocks by depth and time.
Author: Tayste Data source: GeoNet (NZ) License: GNU public domain, free content Software: R Source code# Plot of 2010 Canterbury earthquake aftershocks by depth and time. # Author: Tayste # License: GNU public domain, free content # Software: R # # Data from GeoNet (New Zealand) # earthquakes.csv is the file returned by a query to: # http://magma.geonet.org.nz/resources/quakesearch/ # Choose output format: CSV (Time, location, z, mag) library(RSvgDevice) quakes = read.csv('earthquakes.csv',row.names=NULL) # R gets confused by extra empty column (?) names(quakes) = c(names(quakes)[-1],"QuakeTime") # Try to adjust for that. stopifnot(all(quakes$ORI_YEAR == 2010)) # Check column names aligned with data quakes$QuakeTime = with(quakes, ISOdatetime(ORI_YEAR, ORI_MONTH, ORI_DAY, ORI_HOUR, ORI_MINUTE, ORI_SECOND, tz="UTC")) attr(quakes$QuakeTime,"tzone") = "NZ" `%inrange%` <- function (x, limits) x >= limits[1] & x <= limits[2] chch = subset(quakes, QuakeTime >= as.POSIXct("2010-09-04") & LONG %inrange% c(172,174) & LAT %inrange% c(-45,-42)) devSVG('2010_canterbury_aftershocks_by_depth.svg', width=8, height=6) # inches par(mar=c(6,6,3.1,0.2),cex=1) with(chch, plot(QuakeTime, DEPTH, ylim=rev(range(DEPTH)), pch=16,cex=MAG^2/6, col=rgb(0.1,0.1,0.1,0.2), main="Canterbury aftershocks by Depth and Time",ylab="Depth (km)")) title(sub="Data source: GeoNet") dev.off() |
Date | 8 September 2010 (original upload date) |
Source | Transferred from en.wikipedia to Commons by Logan using CommonsHelper. |
Author | Tayste at English Wikipedia |
Licensing[edit]
Public domainPublic domainfalsefalse |
This work has been released into the public domain by its author, Tayste at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Tayste grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse |
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The original description page was here. All following user names refer to en.wikipedia.
- 2010-09-08 03:41 Tayste 578×434× (46616 bytes) Plot of 2010 Canterbury earthquake aftershocks by depth and time. Author: Tayste Data source: GeoNet (NZ) License: GNU public domain, free content Software: R
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:18, 6 February 2011 | 578 × 434 (46 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Plot of 2010 Canterbury earthquake aftershocks by depth and time. Author: Tayste Data source: GeoNet (N |
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Image title | R SVG Plot! |
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