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 ...

Residents walk toward the designated safe area in a tsunami drill, in Samoa, California, in 2007. A silent colossus lurks off the Pacific coast, threatening hundreds of miles of coastline with ...

Sooner Than You Think :water_wave: Scientists are raising the alarm about the Cascadia Subduction Zone — a massive fault off ...

Deep beneath the Pacific Northwest, the Cascadia subduction zone poses the most significant seismic danger in the United States, according to the U.S. Geological Survey.

When an earthquake rips along the Cascadia Subduction Zone fault, much of the U.S. West Coast could shake violently for five minutes, and tsunami waves as tall as 100 feet could barrel toward shore.

When Washingtonians talk about the possibility of a major earthquake in the Cascadia Subduction Zone, the conversation typically focuses on the immediate impacts: the threat of casualties, building ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the Cascadia subduction zone offshore of California’s North Coast, Oregon, ...

Japan’s government has issued a rare “megaquake advisory” after a 7.5 magnitude earthquake struck off the country’s northern ...

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 ...

A 2025 study suggests that when the next "Big One" hits, coastal land could sink by up to 6 feet. That sudden drop could instantly double the number of people, homes, and roads exposed to flooding.