U.S. Geological Survey volcano alert level — an indication of ground-based status of volcanic activity — and aviation color ...

A recent study reveals that the Poás volcano has changed its eruption pattern, redefining the global ash-related risk map.

Add Yahoo as a preferred source to see more of our stories on Google. HAWAII VOLCANOES NATIONAL PARK -When Scott and Pamela Rippel found out scientists were predicting a fountain of lava would erupt ...

There are parts of the world where the landscape feels alive in a way you can’t quite put into words. The ground is solid beneath your feet, but there’s an awareness that it didn’t get here by ...

Geochemical analysis of erupted tephra samples over the past decade help scientists understand the temperature of Kilauea’s shallow magma system under the summit — and things have been “heating up!” ...

Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...