After suspecting the presence of a series of underwater volcanoes near the Cook Islands, researchers have now mapped out the ...

This map shows the known volcanic activity in British Columbia for the past 10,000 years. B.C. is home to five volcanic belts, which include many of Canada's volcanoes that are less than five ...

Mount Spurr lies about 80 miles west of Anchorage, which is Alaska's most populous city, making it one of the state's most closely watched volcanoes. It last erupted in 1992, spreading ash over ...