Deep in Central Oregon lies a short yet unnervingly narrow lava‑tube hike full of basalt corridors and tight passages where ...

High-lithium clays discovered in Nevada's McDermitt Caldera - a surface find that could transform the US clean energy chain.

Several breathtaking U.S. monuments and wilderness areas may soon earn the coveted title of national park, joining America's ...

Indonesian authorities say they are helping more than 170 climbers caught by Mount Semeru’s sudden eruption to return to ...

Indonesian authorities evacuated over 1,000 people, including over 170 hikers, on Thursday after the eruption of its Semeru ...

Indonesian authorities raised the alert for Mount Semeru volcano to the highest level after a series of eruptions, prompting ...

Indonesian authorities say they are helping more than 170 climbers caught by Mount Semeru’s sudden eruption to return to ...

Indonesia's Mount Semeru volcano erupted Wednesday afternoon around 4:00 p.m. local time, sending ash more than 6,500 feet ...

The Mount Semeru volcano in Indonesia, located in East Java province, erupted on Wednesday, covering several villages with ...

Sicily on alert: a new study reveals that a simple seismic earthquake index can predict the rise of magma beneath Mount Etna.