A massive 8.8 magnitude earthquake that originated in Russia’s Kamchatka has caused tsunami waves to hit in the region, ...

Normal faults occur when the crust is stretched and pulled apart by tensional forces. In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward ...

But faults get narrower and narrower as you move away from the ridge. They’re still normal faults, but they’ve been partly reversed or “unfaulted” back toward a smooth surface.

The Tintina, a major geologic fault that extends 1,000 km northwestward across much of the Yukon Territory, was thought to have been inactive for at least 40 million years, but new research led by a ...