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 (song) is like a burning ring of fire," underlined in one of her uncle A. P. Carter's Elizabethan books of poetry. She worked with Kilgore on writing a song inspired by this phrase as she had seen her uncle do in the past. She had written: "There is no way to be in that kind of hell, no way to extinguish a flame that burns, burns, burns". Cash's first wife, Vivian Liberto, offered a different conception of "Ring of Fire" in her book "I Walked the Line". She contended that June Carter Cash was not a co-writer of the song: "To