First International Conference on MOLDAVIAN RISKS – FROM ...
First International Conference on MOLDAVIAN RISKS – FROM ...
First International Conference on MOLDAVIAN RISKS – FROM ...
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<str<strong>on</strong>g>First</str<strong>on</strong>g> <str<strong>on</strong>g>Internati<strong>on</strong>al</str<strong>on</strong>g> <str<strong>on</strong>g>C<strong>on</strong>ference</str<strong>on</strong>g> <strong>on</strong> <strong>MOLDAVIAN</strong> <strong>RISKS</strong> - <strong>FROM</strong> GLOBAL TO LOCAL SCALE<br />
16-19 May 2012, Bacau, Romania<br />
GEODYNAMICS AND INTERMEDIATE-DEPTH SEISMICITY<br />
IN VRANCEA<br />
Alik Ismail-Zadeh 1, 2, 3 , Liviu Matenco 4 , Mircea Radulian 5 , Sierd Cloetingh 4 ,<br />
6, 7<br />
Giuliano Panza<br />
1 Geophysikalisches Institut, Karlsruher Institut für Technologie, Germany<br />
2 <str<strong>on</strong>g>Internati<strong>on</strong>al</str<strong>on</strong>g> Institute of Earthquake Predicti<strong>on</strong> Theory and Mathematical Geophysics,<br />
Russian Academy of Sciences, Moscow, Russia<br />
3 Institut de Physique du Globe de Paris, Paris, France<br />
4 Faculty of Geosciences, Utrecht University, Utrecht, The Netherlands<br />
5 Nati<strong>on</strong>al Institute for Earth Physics, Ilfov, Romania<br />
6 Dipartimento di Geoscienze, Università di Trieste, Trieste, Italy<br />
7 The Abdus Salam <str<strong>on</strong>g>Internati<strong>on</strong>al</str<strong>on</strong>g> Centre for Theoretical Physics, Trieste, Italy<br />
Corresp<strong>on</strong>ding author: Alik Ismail-Zadeh Alik.Ismail-Zadeh@kit.edu<br />
Abstract: The Vrancea regi<strong>on</strong> of the south-eastern Carpathians is a remarkable site of<br />
intra-c<strong>on</strong>tinental intermediate-depth seismicity. A large set of geological, geophysical, and<br />
geodetic observati<strong>on</strong>s have been accumulated for the last few decades and utilised to<br />
improve our knowledge of the shallow and deep structures beneath Vrancea, the crustal<br />
and mantle dynamics, and the linkage between deep and surface processes in the regi<strong>on</strong>.<br />
We review geology and tect<strong>on</strong>ics of the Vrancea regi<strong>on</strong> including post-collisi<strong>on</strong>al to recent<br />
deformati<strong>on</strong>s, syn- to post-collisi<strong>on</strong>al magmatism, and orogenic exhumati<strong>on</strong> al<strong>on</strong>g the East<br />
and South Carpathians. The regi<strong>on</strong>al seismicity is analysed, and the recent seismic studies<br />
including reflecti<strong>on</strong>, refracti<strong>on</strong>, body and surface wave tomography are reviewed. We<br />
discuss geodetic measurements of horiz<strong>on</strong>tal and vertical movements in the regi<strong>on</strong>,<br />
geoelectric studies, density/gravity and thermal modelling. Qualitative and quantitative<br />
(including retrospective) geodynamic models developed for Vrancea are analysed. The<br />
knowledge of regi<strong>on</strong>al tect<strong>on</strong>ics, geodynamics, seismicity, lithospheric deformati<strong>on</strong>, and<br />
stress regime in the Vrancea earthquake-pr<strong>on</strong>e regi<strong>on</strong> assists in an assessment of str<strong>on</strong>g<br />
ground moti<strong>on</strong>, seismic hazard and risk. The earthquake simulati<strong>on</strong>, seismic hazard, and<br />
earthquake forecasting models have also been reviewed providing a link between deep<br />
geodynamic processes and their manifestati<strong>on</strong> <strong>on</strong> the surface. Finally we discuss<br />
unresolved problems in Vrancea in order to improve our understanding of the regi<strong>on</strong>al<br />
evoluti<strong>on</strong>, present tect<strong>on</strong>ics, mantle dynamics, intermediate-depth seismicity, and surface<br />
manifestati<strong>on</strong>s of the lithosphere dynamics and to enhance our ability to forecast str<strong>on</strong>g<br />
earthquakes in the Vrancea regi<strong>on</strong>.<br />
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