The Cascadia Subduction Zone is “unusually quiet,” for a megathrust fault, making it more difficult for scientists to ...

The 1980 eruption cycle made Mount St. Helens one of the most famous and now best-monitored volcanoes in the Cascades. But it is far from the only volcano in the range. From southern British Columbia ...

Earth's "gold kitchen" lies deep beneath the seafloor. Island arcs, whose volcanoes form above subduction zones where one ...

The Pacific Northwest coast has been living under the shadow of the 620-mile-long Cascadia Subduction Zone, where the Juan de Fuca tectonic plate is steadily pushing under the North American plate.

(a) Geological units and earthquake distribution of an oceanic subduction zone. The orange shadow beneath the volcanic arc represents partially molten areas and magma channels. (b) Thermal structure ...

Amid Earth’s mobile tectonic plates, subduction zones arise as regions of intense geological activity. These zones create processes that concentrate minerals into ore deposits. High-temperature, water ...

SEATTLE — The threat of an earthquake at any given moment in Washington, Oregon, and Idaho is real. Right below our feet is the meeting place of multiple tectonic plates, slowly moving and pushing ...

“In the Cascades, broadly, we’re located along a subduction zone,” explained United States Geological Survey (USGS) Research Geologist Emily Johnson. “So that's where there's an oceanic plate that's ...