This area, called the Cascadia Subduction Zone, hosts a megathrust ... when they finally lurch against each other. The result: the world's greatest earthquakes, shaking both seabed and land ...

The Cascadia Subduction Zone is capable of generating powerful earthquakes. The study found compact sediments along the coast of Washington and northern Oregon, a result that suggests that the ...

Flat, two-dimensional maps can look different because the world is actually curved. This means map-makers need to make compromises when drawing maps. These different map representations are called ...