Much of the volcanic landscape that defines Iceland lies inland and requires deliberate exploration ashore. This is how to ...

Hawaiʻi Volcanoes National Park is sounding an unmistakable alarm as crowds surge to watch Kīlauea’s latest eruption, turning a remote summit into a choked maze of cars, pedestrians and volcanic ...

A towering column of gas and ash from Kīlauea’s summit has once again turned parts of Hawaii’s famously clear skies into a ...

As the Maunaulu eruption waned, Kilauea summit inflated and two brief eruptions occurred in the latter half of 1971 — one in ...

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