When did the pacific plate overtake the caribian plate?
That I do not know but from what has been happening arround the world, there are fauts and subduction zones that have increased activity in the last 2 years, strong teluric movements in areas that have been relativlly quiet, volcanos erupting or becoming more active EG. New Zeland, and the vocano in the South Eastern corner of the Mexico City valley that threw lava all the way to Tlamacas a fairly good distance, the Popocatepetl volcano known to Mexicans as "Don Goyo" has been "smoking" venting steam way before the Aztecs entered the valley and founded Tenochtitlan, the Spanish climbed the valcano to get sulphure for the manufacture of gun powder, now it is ash, gases, steam and lava, the last strong quake 7.2 was very close to the volcano as opposed to the other one that came from the coast subduction area, I hope that plates settle down, earthquakes tend do damage in areas that the population does not have the knowledge to construct quake proof or live in areas that were constructed a long time ago and colapse on them, I hope for the best.
navegator
