Archivo: 093srUSGSpinupFailure

Description: 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.
Title: 093srUSGSpinupFailure
Credit: Slide XIV-10, U.S. Geological Survey Open- File Report 90-547.
Author: Photo by J.K. Nakata, U.S. Geological Survey, 1989 Via [1]
Usage Terms: Public domain
License: Public domain
Attribution Required?: No