The USGS said that 11 of the 18 volcanoes they have classified as a "high threat" or a "very high threat" are located in Washington, Oregon, or California, "where explosive and often snow- and ice-covered edifices can project hazards long distances to densely populated and highly developed areas."

According to the Epoch Times, the danger list is topped by Kilauea in Hawaii, which has been erupting continuously in 2018.  Mount St. Helens as well as Mount Rainier in Washington, Alaska's Redoubt Volcano, and California's Mount Shasta are also in the top five, according to what the USGS has said.