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) transportation corridor and processing facility in northern Ontario's Ring of Fire that would lead to a new generation of prosperity in the north, with thousands of jobs and new infrastructure". Natural Resources minister Michael Gravelle announced that the smelter would be in Sudbury, Ontario. On 26 April 2013, Tony Clement called the Ring of Fire the oil sands of Ontario. On 13 June 2013, Cliffs announced it would put its $3.3-billion project on hold pending results of negotiations between First Nations and Queen's Park. Clement said that the Ring of Fire would bring "about a hundred years of mining activity