Buriticupu is a municipality in Maranhão founded in 1994. Its population in 2020 was 72,983. The area has suffered significant gully erosion wit…Buriticupu is a municipality in Maranhão founded in 1994. Its population in 2020 was 72,983. The area has suffered significant gully erosion with about 30 gullies, one of which is 80m deep. These are called “voçoroca” or “torn land” in the indigenous Tupi-Guarani language. At least 50 houses have been destroyed by the erosion and other residents have abandoned their homes, leaving whole neighbourhoods deserted.