32 years ago they had a massive 8.0 that killed nearly 10,000 people and so it was just cruel coincidence that they got another major rattler on that date. you re talking about earthquake response and how they were preparing for this because this was on the anniversary of the 1985 quake. building structures, building codes, i know mexico is build on an ancient link bed, there s a lot of sand that can lick qui fi and the building codes there changed dramatically after that. they had to be fortified. in mexico city, were the buildings brought up to date? were they fortified after that last quake and are we seeing evidence that obviously or seems at least that they were not done so adequately. i mean, obviously after that quake in 85, they strengthen the building codes there and there s been a lot of new construction.