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Chapter 8 Earthquakes and Earth's Structure Crossword (All Key Terms)

Across
A ocean wave caused by water displaced in response to the seafloor movement.
The initial rupture point, where abrupt movement creates and earthquake.
Waves that radiate outward from the epicenter.
A scale that measures earthquakes based on the structural damage caused.
A sudden motion or trembling of Earth caused by the abrupt release of elastic energy that is stored in rocks.
The boundary between the crust and mantle.
Portions where the sides of the fault slip past one another at a continuous snail-like pace.
The region in a subduction zone where earthquakes occur.
The point Earth's surface directly above the focus.
Down
Waves that are the second to reach an observer.
Seismic waves that travel through Earth's interior and carry some energy from the focus to the surface.
A vertical fault that the rocks on opposite sides move horizontally.
Scale used to measure the energy of earthquakes that takes into account the amount of movement and surface area of a fault that moved during an earthquake and the shear strength of the faulted rock.
Small earthquakes that precede a large quake.
Waves that travel through rock.
A fracture where rock on either side of the fracture rupture and the two sides move relative to one another.
A scale that measures the energy released by an earthquake based on the largest earthquake body wave recorded.
A device that records seismic waves.
Waves that travel fast and are the first waves to reach an observer.
A situation where soil loses its shear strength and behaves like a fluid.