Session 4. Intracontinental deformation and slowly deforming areas
Conveners: N. d'Agostino, J. Jackson, A. Walpersdorf, L. Bastos
Today, the archives of space-geodetic observations (such as GNSS, InSAR) cover time intervals of more than 20 years and now enable us to recognize extremely slow crustal deformation. Careful analyses of these observations yield highly precise 3D velocity fields. Moreover, they are also starting to detect long-term transient deformations even in regions of low tectonic activity.
These results highlight features such as the activity of slow faults, but also crust-mantle interactions and more generally the presence of volume forces, as well as surface processes, for example related to hydrology or climatology. New approaches are needed to identify and understand the sources of moderate or rare seismic activity in continental regions and slowly deforming areas. In this sense, in regions where records of past seismic activity are poorly preserved, geodetic estimates of tectonic deformation improve the assessment of seismic hazard.
We encourage contributions based on a multi-technique approach integrating space-geodetic techniques with seismology, paleo-seismology, gravimetry, historical evidence, geological fieldwork and geomorphology, as well as other types of information (such as sea level, hydrology, meteorology) to improve our understanding of slow and intracontinental deformation.
Keynote speaker
Eric Calais - Ecole normale supérieure - France
A new paradigm for large earthquakes in stable continental regions
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Detailed Oral Program
Tuesday 11th September
4PM - 6:30PM:
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Large earthquakes in stable continental regions (invited)
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Eric Calais
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Links between earthquake depths, lithosphere thickness and rheology on the continents
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James Jackson
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Mapping intracontinental strain in the Alpine-Himalayan Belt with Sentinel-1: Progress and Challenges
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Tim Wright
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Multi-annual strain variations induced by hydrological cycles in Central Apennine
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Roberto Devoti
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Present-day crustal deformation in Romania from continuous and episodic GNSS measurements
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Alexandra Muntean
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Improved estimates of Caribbean plate motion and rigidity from COCONet and campaign GPS observations
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Glen Mattioli
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Seismotectonics of the 2017 Botswana earthquake (Mw 6.5): An active zone in intraplate Africa
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Mustapha Meghraoui
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Crustal faults in the Java subduction zone from GPS observations: Implications for fault slip partitioning
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Achraf Koulali
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Weak sub-fault shear zones revealed by earthquake activity on the slowly-deforming Kenchreai Fault (central Greece)
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Alex Copley
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List of Posters
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Quantitative impact of structural inheritance on present-day deformation and seismicity concentration in continental intraplate regions
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A. Tarayoun, S. Mazzotti, F. Gueydan
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Eurasia-North America plate motion and Glacial Isostatic Adjustment
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Eric Calais, Luce Fleitout
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Intraplate deformation in central-western Europe from GPS data
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Lavinia Tunini, Eric Calais
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Analysing the ionospheric signals in slow to medium deformation regions from GNSS time series
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Luísa Bastos, Dalmiro Maia, Américo Magalhães
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Intraplate seismicity in mid-plate South America: correlations with geophysical lithospheric parameters
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Hans Agurto-Detzel, Marcelo Assumpcao, Marcelo Bianchi, Marlon Pirchiner
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Distribution of Present-Day Vertical Deformation of the Rif Domain (Morocco) From Continuous GPS data
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Abdelali Fadil, Abdelilah Tahayt, Philippe Vernant, Robert Reilinger, Taoufik Mourabit, Mimoun Harnafi, Mohamed Amar
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Distributed extensional deformation at the continent-ocean transition stage
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Cécile Doubre
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Characterizing surface deformation in the 1990 Rudbar earthquake (Iran) using optical image correlation
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Najme Ajorlou, James Hollingsworth, Zahra Mousavi, Abdolreza Ghods, Zohreh Masoumi
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Crustal stresses induced by variations in land temperature and continental water storage
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Kristel Chanard, Luce Fleitout
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Lithosphere deformation and seismicity distribution in intraplate domains, the Western Europe example
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Maxime Bernaudin, Stephane Mazzotti, Jean Chéry, Frédéric Gueydan, Philippe Vernant
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3D deformation in the South-Western European Alps (Briançon region) revealed by 20 years of geodetic data
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Marguerite Mathey, Andrea Walpersdorf
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Confronting integrated fault activity with recent seismicity in metropolitan France. Any consistency?
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Amaury Vallage, Laurent Bollinger
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Monitoring the slowly deforming subduction to collision transition zone in the Balkans : the ALBA project
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Marianne Métois, Mouna Benjelloun, cecile lasserre, Raphaël GRANDIN, François Jouanne, Riccardo Vassallo, Rexhep Koçi, Neki Kuka, Edmond Dushi
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Mapping and Spatiotemporal Analysis of Land Subsidence in the Beijing Plain by PSI with Multi-source SAR Data
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Chaodong Zhou, Huili Gong, Hengxing Lan, Youquan Zhang
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First Assessment of Vertical Crustal Motion by Space borne and Local Observations in the Rhine-Main and Upper Rhinegraben Region
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Matthias Becker, Bayzidul Islam, Damian Bargiel, Rouwen Lehné, Andreas Henk
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