Reading about meteorites, I have found this idea of "antipodal earthquakes" or "antipodal vulcanism" after a major impact several times. There seems to be perfectly good papers for and against, together with the usual crankish "information." There also was a thread here about the issue almost 4 years ago. My question is simple: is anyone aware of any more recent research for or against this antipodal seismic focusing effect, please? (I haven't been able to find anything.) And... do you think it's plausible or far-fetched, or is the jury still out there? Thank you in advance!