32 years ago, Mexico City lived one of the strongest earthquakes ever registered. With this experience, Fernando Gutierrez Ochoa, president of Mexico's Civil Engineers Association, said that after 1985 forced to reform the Public Works law and the rules and norms for construction, to make safer building.

"With last week's earthquake (September 7th) people from Mexico City behaved well, but we cannot let our guard down, because the earthquake was very different from the one in 1985, the intensity was stronger because of the land acceleration was different from the one from the structures, making them move more and receive more damage. The one in 1985 was six times stronger than this one. Also we've seen improvement in materials, they have advanced technologically very quickly, today we have construction materials and procedures that allow stronger structures against earthquakes", he added.

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