The 2020 European Seismic Hazard Model: Milestones and Lessons Learned.- Developments relating to seismic action in the Eurocode 8 of next generation.- Hard as a rock? Reconsidering rock-site seismic response and reference ground motions.- Tomb Raiders of the Lost Accelerogram: A Fresh Look on a Stale Problem.- Mars from the InSight: Seismology beyond Earth.- GMPEs for Romania's Vrancea intermediate depth seismic source.- Reliability-Based Liquefaction Triggering Assessment Framework: A Unified Approach for SPT-CPT-Vs.- Seismic detection efficiency of a new inexpensive MEMS sensor prototype: Application to micro-seismicity and distant moderate earthquakes.