Lisbon’s downtown, called Baixa, the area most affected by the earthquake, is built over unstable ground, and it is thus necessary to reinforce the whole area. Another anti-seismic system was needed in this area, consisting of a forest of buried poles.
The downtown Lisbon district, referred to as Baixa, suffered significant damage from the quake and requires comprehensive stabilization efforts because of its precarious terrain. A supplementary seismic protection system is needed for this region, featuring an extensive array of underground support pillars.