Correspondent Rachel Chason and photographer Chloe Sharrock traveled together to the heart of Guinea’s bauxite-mining region, a day’s journey from the capital, Conakry, along partly flooded roads.

The U.S. Geological Survey has detected a 7.6-magnitude earthquake in northeastern Papua New Guinea.The quake hit at 6:46 a.m. Initial readings put the quake at a depth of some 50 to 60 kilometers ...