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Original caption:

Loma Prieta, California, Earthquake October 17, 1989. Watsonville area. This house was dislodged and moved 0.75 meter (2.5 feet) from the cement stairway in downtown Watsonville. Slide XIV-10, U.S. Geological Survey Open- File Report 90-547.

Comments: Image shows low cripple wall collapse and detachment of structure from concrete stairway.

Note that the building has moved diagonally, a typical motion when all four shear walls of a structure collapse. For this to occur the usual failure mode is for the corners to disassemble, and good design or retrofitting pays special attention to the corners of such structures.


Photo by J.K. Nakata, U.S. Geological Survey, 1989 Via [1]


Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy

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Relevent categories

Category:Construction Category:Seismology Category:Loma Prieta earthquake Category:Watsonville, California

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Transwiki approved by: w:en:User:Dmcdevit

This image was copied from wikipedia:en. The original description was:

93. This house was dislodged from its foundation and moved 0.75 meters (2.5 feet) from the cement stairway in downtown Watsonville. [J.K. Nakata, U.S. Geological Survey]

Image prepared for the w:en:seismic retrofit article.

File history

date/time username resolution size edit summary
05:24, 10 September 2004 w:en:User:Leonard G. 749×512 44 KB 93. This house was dislodged from its foundation and moved 0.75 meters (2.5 feet) from the cement stairway in downtown Watsonville. [J.K. Nakata, U.S. Geological Survey]

Image description page history

link date/time username edit summary
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=158187890 03:24, 16 September 2007 w:en:User:Dmcdevit
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=158187890 03:01, 16 September 2007 w:en:User:Dmcdevit
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=32822348 01:20, 27 December 2005 w:en:User:Darwinek
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=16758794 00:29, 13 February 2005 w:en:User:119
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=10201577 06:17, 28 November 2004 w:en:User:Leonard G.
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=7920625 16:55, 10 September 2004 w:en:User:Leonard G.
http://en.wikipedia.org/w/index.php?title=Image:093srUSGSpinupFailure.jpg&redirect=no&oldid=5785826 05:24, 10 September 2004 w:en:User:Leonard G. (93. This house was dislodged from its foundation and moved 0.75 meters (2.5 feet) from the cement stairway in downtown Watsonville. [J.K. Nakata, U.S. Geological Survey])

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Size, bytes 0.00553112792969 мб
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