Buried beneath the high desert on the Oregon–Nevada line, an ancient volcanic scar is suddenly being talked about in the same ...

Beneath Oregon's high desert, a colossal lithium deposit lies in ancient volcanic clay, containing 20 to 40 million metric ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

Rivers of lava flowed down several vents of the Halemaʻumaʻu crater on Hawaii's Kilauea volcano overnight Monday — the latest ...

Hawaii 's Kilauea volcano erupted again this week, sending lava more than 800 feet into the air during a roughly 10-hour ...