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) May 2011, Matawa Chiefs and their communities called for a Joint Environmental Assessment (EA) Review Panel. On October 13, 2011, the Canadian Environmental Assessment Agency (CEAA) proceeded with a Comprehensive Study Environmental Assessment that favours the mining industry without First Nations participation. On October 20, 2011, Matawa First Nations removed its support for the Ring of Fire development unless the federal government agreed to a joint review panel Environmental Assessment process that would allow First Nations communities in the area to have a voice in the assessment. On June 12, 2012, Webequie First Nation Chief Cornelius Wabasse and Minister of