A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating earthquake risk at the Cascadia subduction zone.

The megathrust fault zone is like an air hockey table,’ Solomon, a seafloor geologist at the University of Washington, pointed out. “If the fluid pressure is high, it’s like the air is turned on, ...

Subduction zones, where one tectonic plate dives underneath another, drive the world’s most devastating earthquakes and tsunamis. How do these danger zones come to be? A study in Geology presents ...

Just off the Pacific Northwest coast amid record-breaking heat in 2021, researchers braved oddly cold, stormy seas to study another threat to the region — earthquakes and tsunamis. The team of about ...

Oceans are subject to continuous change, mostly over extremely vast periods of time running into millions of years. Researchers have now used computer simulations to demonstrate that a subduction zone ...

When a huge earthquake struck near Kamchatka, the SWOT satellite captured an unprecedented, high-resolution view of the resulting tsunami as it crossed the Pacific. The data revealed the waves were ...

A satellite captured a Tsunami from space for the first time, revealing why the 2025 Kamchatka earthquake was less destructive than 1952.

PORTLAND, Ore. (KOIN) – January 26 marked the 325th anniversary since the last earthquake struck the Cascadia Subduction Zone. Centuries later, the ancient quake has left clues for scientists to ...