Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

What if the most telling indications of an impending volcanic eruption are buried deep under the ocean, or in a fleeting succession of tiny quakes that no one perceives? As volcanoes of the Pacific ...

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

The Axial Seamount, located 300 miles off Oregon's coast, shows signs of eruption. Experts assure it won't affect land or cause seismic events.

The Costa Rican expert in geophysics and seismology shares his perspective on earthquake prediction and the imminent eruption ...

InVADER studies underwater hydrothermal systems at Axial Seamount, the largest and most active volcano on western boundary of the Juan de Fuca tectonic plate off the coast of Oregon. The vents at the ...