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) million tonnes of carbon dioxide. On 12 November 2012, Tony Clement was appointed as the lead federal minister on the Ring of Fire and co-chair, with Minister of Aboriginal Affairs and Northern Development Bernard Valcourt, of the Federal Steering Committee (FCS), which represents 15 federal departments. Clement invited Ontario Natural Resources minister Michael Gravelle "to collaborate on projects, community visits, information-sharing, and to hold joint meetings". Aboriginal Affairs and Northern Development Canada (AANDC) led other federal departments and FedNor in the development of "Action Plan for Supporting Community Participation in the Ring of Fire" to help "position First Nations to