The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was ...

Stretching around the Pacific like a colossal scar, the Ring of Fire contains the planet’s most explosive volcanoes, deepest trenches, and deadliest fault lines. Nearly every major earthquake and ...

New research has identified a 35,000-year-old basalt eruption as the youngest at Yellowstone, shifting our understanding of ...