File:1906 loma prieta.png

1906_loma_prieta.png(733 × 549 pixels, file size: 8 KB, MIME type: image/png)

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Description Comparison of seismograph data on the 1906 San Francisco Earthquake and the 1989 Loma Prieta Earthquake.
Date and 1989
Source

Seismographs at Gottingen, Germany.

USGS plot on http://quake.wr.usgs.gov/info/1906/got_seismogram_lp.html
Author Figures from a paper by David Wald and others
Permission
(Reusing this file)
Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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Wikipedia upload log

Also uploaded earlier to en:Wikipedia. (All user names refer to en.wikipedia)

  • 2005-12-12 15:02 Zeizmic 733×549×3 (10409 bytes) USGS plot on http://quake.wr.usgs.gov/info/1906/got_seismogram_lp.html

Original upload log

Date/Time Dimensions User Comment
5 June 2007, 17:23:00 733 × 549 (10409 bytes) MECU (talk · contribs) {{Information |Description=USGS plot on http://quake.wr.usgs.gov/info/1906/got_seismogram_lp.html |Source=Originally from [http://en.wikipedia.org en.wikipedia]; description page is/was [http://en.wikipedia.org/w/index.php?title=Image%3A1906_loma_prieta.g

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Date/TimeDimensionsUserComment
current12:48, 19 July 2014733 × 549 (8 KB)GifTaggerBot: Converting file to superior PNG file. (Source: 1906_loma_prieta.gif). This GIF was problematic due to non-greyscale color table.

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