Hawaii’s most active volcano has been erupting intermittently since December. The latest episode sent lava more than 300 feet into the air.

Mount Spurr, which sits about 75 miles west of Anchorage, has seen “ volcanic unrest ” for the last 10 months, including an ...

Researchers found that magma chambers beneath Cascade Range volcanoes persist even when the volcanoes are dormant, ...

As Kilauea erupts a 330-foot-tall fountain of lava, officials warn of hazards from volcanic gas that may affect nearby ...