6642 20240123152745.0 SEMIN-2024-0015 Van Noten, Koen 20th century damaging earthquakes in the Hainaut and Liège coal basins: natural or triggered? 2023 2023-12-22 NO Intraplate seismicity Triggered seismicity Christmas Lecture GGG & Geologica, Universiteit Gent koen.vannoten@observatoire.be SEMIN