1985 what disaster happened in Almiro village?

This is 1985, when the Colombian village of Almiro was destroyed. In the picture, the little girl's name is Omia Sanchez. She has been trapped in the mud for three days. The medical staff tried to help her, but they found that to save her from this fatal trap, she had to amputate her leg, and there was no expert on the scene, which would undoubtedly kill her. So in the end, Omia Sanchez died. This photographer won the 1986 World News Photography Award, but he was condemned by people all his life.