East Java, Indonesia
The mud volcano is located near Surabaya in east Java.
Lusi mud volcano began erupting in May 2006.
The eruption is believed to have been triggered by the release of pressure from permeable limestone
at a depth of 2830 m which escaped through a gas well to the surface.
The volcano erupted mud at a rate of 7000-150,000 cubic metres per day.
Mud covered 10 sq km around the volcano and displaced 11000 people.