000004455 001__ 4455
000004455 005__ 20200106124553.0
000004455 037__ $$aCTALK-2020-0015
000004455 100__ $$aVanneste, K.
000004455 245__ $$aThe influence of ground motion prediction equations for earthquakes in the Belgian Hainaut on seismic hazard in Belgium and northern France
000004455 260__ $$c2019
000004455 269__ $$c2019-09-26
000004455 520__ $$aThe part of the Belgian  coal-mining Basin between the French border to the west and the region of Charleroi to the east suffered from several 4.0-4.5 magnitude earthquakes during the 20th century. These seismic events locally caused significant damage corresponding to EMS-98 intensity VII. In seismic hazard assessment studies currently conducted in Belgium, this earthquake activity is associated to a particular source zone called "Hainaut", which is at the origin of a high hazard in the surrounding areas. By analyzing the information on the impacts of the stronger observed earthquakes in Hainaut, we suspect that the classical ground motion prediction equations (GMPEs) used in seismic hazard assessment to evaluate ground motions at a given distance for a given earthquake magnitude do not take into account the strong observed intensity attenuation. Moreover, we discuss the possibility that this seismicity could have been induced by stopping or accelerating phases of mining activities during the course of the 20th century. For these reasons, we compared three different seismic hazard maps to evaluate the impact of using more adapted GMPEs to the context of the Hainaut seismicity and also considering that no future activity will occur as mining industry is now closed since nearly 40 years: 1. classical seismic hazard with  hainaut as a source zone with classical GMPEs; 2. seismic hazard with Hainaut as a source zone, but with adapted GMPEs.
000004455 594__ $$aNO
000004455 6531_ $$aGround motion 
000004455 6531_ $$aHainaut 
000004455 6531_ $$aSeismic hazard
000004455 700__ $$aCamelbeeck, T.
000004455 700__ $$aCividino, P.
000004455 700__ $$aKaufmann, O.
000004455 700__ $$aVan Camp, M.
000004455 773__ $$tColloque de l'Association Française du Génie Parasismique 
000004455 8560_ $$fmichel.vancamp@observatoire.be
000004455 85642 $$ahttp://www.afps-seisme.org/AFPS
000004455 906__ $$aContributed
000004455 980__ $$aCTALKCONT