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Mexico City, Day 5 – Structural Monitoring and Reconnaissance Review

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On Friday, the members of the ATC reconnaissance team reviewed their individual observations. Specific buildings were also identified for ongoing monitoring.

Having reached out to local engineers, building owners and residents, the team received helpful information about the earthquake itself, as well as the consequent building performance. Some residents invited our team members into their apartments to see the damage in person. The 9/19/17 earthquake caused structural damage — damage to buildings — precipitating 44 collapses. Many buildings also experienced non-structural structural damage (i.e. the shaking of contents within the buildings), or damage caused by geotechnical failure.

On this day, Laura Hernandez also assisted University at Buffalo Professor, Andreas Stavridis, with the instrumented inspection and measurement of a damaged building. Prof. Stavridis, member of the ATC team, conducted instrumented investigations of one building each day throughout this reconnaissance trip.