Officials are raising concerns over the safety of clean water captured in catchment systems after volcanic matter rained down ...

Lava fountains shot almost 1,600 feet in the air, pelting the Kilauea summit and surrounding communities with chunks of volcanic rock.

The most recent lava fountains in Kilauea formed a health issue that vastly exceeded the crater rim: airborne glass, ash and vog that can thrive neighborhoods in excess of 25 miles in the distance.

Deep beneath one of the United States’ most closely watched volcanoes, researchers see not only a source of risk but a vast reservoir of clean, constant heat. The idea is as audacious as it sounds: ...