Ring of Fire volcanic eruptions of the last 11,700 years occurred at volcanoes in the Ring of Fire. The Ring of Fire is a direct result of plate tectonics: the movement and collisions of lithospheric plates, especially subduction in the northern portion. The southern portion is more complex, with a number of smaller tectonic plates in collision with the Pacific plate from the Mariana Islands, the Philippines, Bougainville, Tonga, and New Zealand. The presence of a belt of volcanic activity surrounding the Pacific Ocean was observed in the 19th century. "They [the Japanese Islands] are in the line of that immense circle of
Ring of Fire (Northern Ontario) a former Ontario Geological Survey geologist, hopes the federal government will consider Tetra Tech's findings. Cliffs Natural Resources is seeking an easement through Ontario's Mining and Landings Commissioner on the KWG corridor to build their access road. There was controversy over whether the province of Ontario, could afford a CAD$2.25 billion road the Trans-Canada Highway near Kenora to the Ring of Fire. In 2017, the provincial government of Ontario pledged support for the construction of a road that would connect the Ring of Fire, and the Nibinamik and Webequie First Nations, to Ontario Highway 599 at Pickle Lake. In 2011,