Road Violently Erupts After Suspected Underground Methane Explosion On 5/20/21 at 10:34 AM EDT Four people were injured in central China when a suspected sewer gas explosion caused a road to erupt underneath workers and passers-by. Traffic cameras at an intersection in Wuhan, Hubei province, captured the unexpected moment in full just after 9 a.m. local time Thursday. A statement by the local government said all four victims were in stable condition. The viral video being widely shared across Chinese social media platforms shows two workers crouched down next to an open manhole at the intersection of Kangfu and Chukang roads in Wuhan's Hongshan District.