Title :
Results from INSAR monitoring of the 2010–2011 New Zealand seismic sequence: EA detection and earthquake triggering
Author :
Salvi, S. ; Atzori, S. ; Tolomei, C. ; Antonioli, A. ; Trasatti, E. ; Boncori, J. P Merryman ; Pezzo, G. ; Coletta, A. ; Zoffoli, S.
Author_Institution :
Ist. Naz. di Geofisica e Vulcanologia - INGV, Rome, Italy
Abstract :
We used a variety of SAR-based techniques to measure the crustal deformation associated to the Darfield and Christchurch earthquakes, New Zealand. We detected clear post-seismic signals of the Darfield earthquake, and a pre-seismic signal spatially and temporally associated to the Christchurch earthquake. The small pre-seismic signal (~25 mm) has an opposite polarity of the much larger co-seismic one (~150 mm) in the same area.
Keywords :
Earth crust; earthquakes; remote sensing by radar; AD 2010 to 2011; Christchurch earthquakes; Darfield earthquakes; InSAR monitoring; New Zealand; SAR-based techniques; co-seismic polarity; crustal deformation; earthquake triggering; pre-seismic signal; seismic sequence; Earthquakes; Interferometry; Monitoring; Satellites; Seismic measurements; Stress; Synthetic aperture radar; COSMO-SkyMed; SAR interferometry; earthquake anomaly;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350654
