Beneath dormant volcanoes in the Cascades region of the Pacific Northwest, scientists found large reservoirs of magma. The discovery challenges the belief that active volcanoes have large magma ...

Imagine a gentle landscape of rolling plains and peaceful forests, stretching as far as the eye can see. Now, picture that ...

Mount Spurr has been showing signs of an eruption since last year, but scientists think one is even more imminent.

The Pacific Northwest Seismic Network is also contending ... Advertising “I don’t want anybody to think we’ve stopped monitoring the volcanoes,” Tobin said. “We haven’t.

The tiny Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of the United States. The plates make up Earth's outer shell, called the lithosphere.

The islands were formed as the Pacific plate crept northwest at three to four inches a year, carrying volcano after volcano away from the stationary hotspot like a conveyor belt. Though scientists ...