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Published October 2010 | Published + Supplemental Material
Journal Article Open

Impulse Response of Civil Structures from Ambient Noise Analysis

  • 1. ROR icon California Institute of Technology


Increased monitoring of civil structures for response to earthquake motions is fundamental to reducing seismic risk. Seismic monitoring is difficult because typically only a few useful, intermediate to large earthquakes occur per decade near instrumented structures. Here, we demonstrate that the impulse response function (IRF) of a multistory building can be generated from ambient noise. Estimated shear-wave velocity, attenuation values, and resonance frequencies from the IRF agree with previous estimates for the instrumented University of California, Los Angeles, Factor building. The accuracy of the approach is demonstrated by predicting the Factor building's response to an M 4.2 earthquake. The methodology described here allows for rapid, noninvasive determination of structural parameters from the IRFs within days and could be used for state-of-health monitoring of civil structures (buildings, bridges, etc.) before and/or after major earthquakes.

Additional Information

© 2010 Seismological Society of America. 

Attached Files

Published - Prieto_et_al_BSSA_2010.pdf

Supplemental Material - BSSA,_100_5A,_Electronic_Supplement_to_Prieto_et_al.pdf


Seismograms used in this study are made available thanks to operations and maintenance supported by personnel and funds from the U.S. Geological Survey Advanced National Seismic System (Grant 05HQGR0159) program and the National Science Foundation (NSF) Center for Embedded Networked Sensing at the University of California, Los Angeles (UCLA). Data can be obtained the Incorporated Research Institutions for Seismology (IRIS) Data Management Center at www.iris.edu (last accessed January 2008).


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