Where are the most active volcanoes in the United States? From Hawaii’s fiery peaks to Alaska’s volcanic landscapes, discover ...

A major U.S. city is under threat from a potential volcanic eruption after more than 20 earthquakes were recorded in Alaska.

Even when the geology is ideal, it can take years to get a green light to drill,' Rep. Celeste Maloy said on the challenges ...

Over the past two weeks, several equipment outages at the Philadelphia-based air traffic control center that guides planes to ...

A restive volcano in central Philippines has briefly erupted, spewing a 2.8-mile ash plume and debris into the sky.