Thanks for the article link ^
Interestingly enough from some news sources this type of earthquake apparently did more damage to about six story buildings due to DF's (sorry CDMX is still new to me) soil.
I was there a few months after the 1985 earthquake when things were mostly cleaned up, but you could still see damage even then. Remember going inside one of the old churches, and you could see how it tilted by the way wires for hanging lamps would not be parallel to the walls
