Seismic symphonies of minor earthquakes may affect grand movements on major faults.

Megathrust is the meeting zone between the tectonic plates of the earth that have the potential to cause strong earthquakes and tsunamis. The term "mega" means large, while "thrust" means thrust fault ...

The Cascadia Subduction Zone, a 700-mile-long megathrust fault where the Juan de Fuca Plate dives beneath North America, has a well-documented history of “great earthquakes” events of ...

Megathrust earthquakes are among the most powerful and destructive natural disasters on the planet, capable of wiping out cities and triggering massive tsunamis. Now, scientists have uncovered new ...

A recent report presented to city council painted a bleak picture of what a long-feared megathrust earthquake—commonly known as the Big One—could do to Vancouver.

A massive quake might drop the Pacific Northwest coastline by 6 feet, redrawing flood maps and putting thousands of homes at risk.

When subduction zones get stuck and then suddenly slip, it can cause a huge earthquake. These kinds of earthquakes happen along special cracks called megathrust faults. Scientists know that in this ...

It’s a daunting challenge with the highest possible stakes should an offshore earthquake unleash a wall of incoming seawater.

Scientists refer to recurrence intervals to estimate how often major earthquakes occur on a given fault. For the Cascadia Subduction Zone, the geological record shows a pattern of megathrust ...

It began off the northwest coast of Sumatra with a sudden, thousand-mile-long rupture—and magnitude 9.1 quake—on the Sunda megathrust, a fault along which part of the Indian Ocean floor ...