There were several 7+ earthquakes noted from March 20th (21st) = Mexico 7.9 & 7.1 (?)  (Remember O’s daughter?)... then Chile 7.2 on the 25th... seems like these might qualify.  I’m going by memory here & don’t remember the exact date for a “ping” , but someone  posted a date window up to 192 days.  Sorry I can’t be more exact right now, but some of you may be better equipped to nail this down.  ~Blessings all... keep flapping those wings!