(Undated)  --  The eruption of Hawaii's Kilauea Volcano is raising concerns about volcanoes along America's West Coast.  The Pacific "Ring of Fire" includes an 800-mile chain of 13 volcanic peaks that runs along North America's West Coast.  Experts are keeping an eye on all volcanic activity along the chain, especially Mount St. Helens in Washington, which erupted in 1980, propelling volcanic ash into the sky and killing dozens of people.