5362 20210602072759.0 CTALK-2021-0059 Lecocq, T. Global Quieting of Anthropogenic, High-Frequency Seismic Noise Due to COVID-19 Pandemic Lockdown Measures (keynote) 2020 2020-10-26 NO Ken Kennedy Institute Data Science Conference, Texas, USA thomas.lecocq@observatoire.be Invited CTALKINVI