Geotech team: Microtremor testing

It has been noted that in some of the cities most heavily affected by the April 16th earthquake, severe damage is heavily concentrated in certain areas of the city. This could be due to a number of factors, one of which is the ground conditions in that area.

The geotechnical team has conducted a number of microtremor tests to try to understand the role of ground conditions on building and infrastructure damage. Today the last of these tests were conducted in Tarqui, the most severely affected area of Manta. Tests have also been conducted in heavily affected areas in Portoviejo and Pedernales. In addition, we have conducted tests close to measuring stations which have been used by the Institutio Geofisico to measure the ground accelerations caused by the 16th April earthquake.

Detailed analysis of this data is on our ‘to do list’ when we return to the UK. It is hoped that it may help us to understand some of the patterns in damage that we have observed here in Ecuador.

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