%0 Journal Article %1 zaccarelli_etal:2011 %A Zaccarelli, L. %A Shapiro, N. M. %A Faenza, L. %A Soldati, G. %A Michelini, A. %D 2011 %J Geophysical Research Letters %K geophysics seismology %N 24 %P L24304+ %R 10.1029/2011GL049750 %T Variations of crustal elastic properties during the 2009 L'Aquila earthquake inferred from cross-correlations of ambient seismic noise %U http://dx.doi.org/10.1029/2011GL049750 %V 38 %X We retrieve seismic velocity variations within the Earth's crust in the region of L'Aquila (central Italy) by analyzing cross-correlations of more than two years of continuous seismic records. The studied period includes the April 6, 2009, Mw 6.1 L'Aquila earthquake. We observe a decrease of seismic velocities as a result of the earthquake's main shock. After performing the analysis in different frequency bands between 0.1 and 1 Hz, we conclude that the velocity variations are strongest at relatively high frequencies (0.5-1 Hz) suggesting that they are mostly related to the damage in the shallow soft layers resulting from the co-seismic shaking.

@article{zaccarelli_etal:2011, abstract = {We retrieve seismic velocity variations within the Earth's crust in the region of L'Aquila (central Italy) by analyzing cross-correlations of more than two years of continuous seismic records. The studied period includes the April 6, 2009, Mw 6.1 L'Aquila earthquake. We observe a decrease of seismic velocities as a result of the earthquake's main shock. After performing the analysis in different frequency bands between 0.1 and 1 Hz, we conclude that the velocity variations are strongest at relatively high frequencies (0.5-1 Hz) suggesting that they are mostly related to the damage in the shallow soft layers resulting from the co-seismic shaking.}, added-at = {2012-09-01T13:08:21.000+0200}, author = {Zaccarelli, L. and Shapiro, N. M. and Faenza, L. and Soldati, G. and Michelini, A.}, biburl = {https://www.bibsonomy.org/bibtex/226cd78c316b0d7674f52094893d26af9/nilsma}, day = 17, doi = {10.1029/2011GL049750}, interhash = {eccdf000e3771ffa327695468552db84}, intrahash = {26cd78c316b0d7674f52094893d26af9}, issn = {0094-8276}, journal = {Geophysical Research Letters}, keywords = {geophysics seismology}, month = dec, number = 24, pages = {L24304+}, timestamp = {2021-02-09T13:26:58.000+0100}, title = {Variations of crustal elastic properties during the 2009 L'Aquila earthquake inferred from cross-correlations of ambient seismic noise}, url = {http://dx.doi.org/10.1029/2011GL049750}, volume = 38, year = 2011 }