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) of about "1.5 million hectares". Although the Ring of Fire crescent covers 5,000 square kilometres (approximately 1,930 square miles), most discoveries made by 2012 were within a twenty-kilometre-long strip. Ontario's Minister of Northern Development, Mines and Forestry Michael Gravelle called the region "home to one of the most promising mineral development opportunities in Ontario in more than a century". Tony Clement, Canada's Treasury Board President and the FedNor minister responsible for the Ring of Fire, claimed it will be the economic equivalent of the Athabasca oil sands, with a potential of generating $120 billion. Clement says the Ring of Fire