Comment on 鈥淪urface deformation caused by April 6th 2009 earthquake in L鈥橝quila (Italy): A comparative analysis from ENVISAT ASAR, ALOS PALSAR and ASTER鈥?by M.A. Goudarzi, T. Woldai, V.A. Tolpekin
- 作者：Marco Chini ; marco.chini@ingv.it ; Christian Bignami ; Salvatore Stramondo
- 关键词：DInSAR ; Coseismic and postseismic deformation ; L&rsquo ; Aquila earthquake
- 刊名：International Journal of Applied Earth Observation and Geoinformation
- 出版年：2012
- 期刊代码：91_03032434
- 类别：ear
- 出版时间：August, 2012
- 卷：18
- 期：Complete
- 页码：579-581
- 文件大小：577 K
摘要
The present work concerns some observations about the paper by , related to the surface deformation analysis carried out for the earthquake that hit the city of L鈥橝quila, Italy, on April 2009 and based on SAR Differential Interferometry (DInSAR) technique.
We have manly identified a criticality about the post-seismic deformation, named by the author postseismic relaxation. The analysis performed by leads to misleading conclusions in terms of seismic hazard all over the epicentral region. Here, some considerations driven by literature and interferograms comparison demonstrate the incorrectness of their interpretation concerning the coseismic and post seismic surface deformation.