2004 Indian Ocean earthquake and tsunami and a network of sensors is needed to detect it. Setting up the communications infrastructure to issue timely warnings is an even bigger problem, particularly in a relatively impoverished part of the world. Tsunamis are more frequent in the Pacific Ocean than in other oceans because of earthquakes in the "Ring of Fire". Although the extreme western edge of the Ring of Fire extends into the Indian Ocean (the point where the earthquake struck), no warning system exists in that ocean. Tsunamis there are relatively rare despite earthquakes being relatively frequent in Indonesia. The last major tsunami was caused by
Ring of Fire (Northern Ontario) Ontario's Ring of Fire that would lead to a new generation of prosperity in the north, with thousands of jobs and new infrastructure". Cliffs announced that its ferrochrome smelter would be in the Sudbury area in Ontario. However, by 13 June, the Cleveland-based Cliffs Natural Resources Inc., one of the world’s leading mining companies, announced through Bill Boor, senior vice-president for Global Ferroalloys, a division of Cliffs, that it would put its $3.3-billion project, including the Comprehensive Assessment, on hold for one year pending results of negotiations between First Nations and Queen's Park. Section 35 of the "Constitution Act, 1982"