Potential of InSAR monitoring for seismic areas in Romanian

• Main Authors: Mihaela Gheorghe, Iuliana Armaș, Eduard-Ilie Năstase, Alexandra Munteanu
• Format: Article
• Language: English
• Published: University of Bucharest 2018-04-01
• Series: GeoPatterns
• Subjects: InSAR; earthquake; Permanent Scatterer; Dobrogea; Galați
• Online Access: http://www.geodinamic.ro/assets/geo-patterns/volumes/v3.1_23-31.pdf

National Institute of Earth Physics operates one of the densest real-time regional networks in Eastern Europe for monitoring seismic activity, counting 130 real time seismic station and 22 permanent GNSS stations. The network serves for early warning applications, research studies regarding seismic sources and internal Earth structure, as well as crustal deformation monitoring. In areas that make the object of detailed studies for crustal deformation, additional periodic GNSS stations are installed in monthly surveying campaigns, increasing the coverage of the network. The current study focuses on two regions of interest, Izvoarele-Galați and Black Sea coast, monitored with 9 and 4 GNSS reference points respectively. The Izvoarele-Galați represents an interesting research site because of recent abnormal seismic behaviour, while the Black Sea coast is integrated in a project for a regional early-warning system for marine geohazards. Satellite synthetic aperture radar interferometry is proposed as a complementary monitoring technique that can offer insights regarding surface deformation in addition to information offered by classic techniques such as GNSS and optical levelling.