Large meteorite impact events can trigger widespread volcanic activity on the antipodal side of the planet through seismic wave focusing and stress concentration.
The claim is specific and falsifiable, passing Step 0. Retrieved papers such as Richards et al. (2015), Koptev et al. (2011), and Hood et al. (2013) provide physical modeling and geological evidence showing that large impacts can indeed focus seismic energy and trigger volcanism at their antipodes (such as the Chicxulub impact and Deccan Traps connection). No papers refute this mechanism.