The recent sinkholes are an escalation of a problem that residents of Buriticupu have been watching unfold for the last 30 years, as rains slowly erode soils made vulnerable by their sandy nature, plus a combination of poorly planned building work and deforestation.
“In the space of the last few months, the dimensions have expanded exponentially, approaching substantially closer to the residences,” an emergency decree issued by the city government earlier this month said about the sinkholes.
In Buriticupu, about 1,200 people risk losing their homes, and residents have seen the problem escalate in 30 years.
Several buildings in Buriticupu, in Maranhão state, have already been destroyed, and about 1,200 people of a population of 55,000 risk losing their homes into a widening abyss.
Authorities in a city in the Brazilian Amazon have declared a state of emergency after huge sinkholes opened up, threatening hundreds of homes.