On the slopes of an Oregon volcano, engineers are building the hottest geothermal power plant on Earth. The plant will tap into the infernal energy of Newberry Volcano, “one of the largest and most ...

While the USGS scientists learned plenty about volcanism in El Salvador during this trip, it also provided key insights to ...

American Samoa is a United States territory which comprises the easternmost islands of a volcanic island chain formed by the Samoan hotspot in the South Pacific Ocean. Its small islands are the tops ...

Hawaii Volcanoes National Park, Hawaii -- Mount St. Helen's National Volcanic Monument, Washington -- Lassen Volcanic National Park, California -- Aniakchak National Monument and preserve, Alaska -- ...