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Earthquakes Review

Across
A fracture in the Earth's crust in which sections of the crust move relative to each other
A measure that describes how strong a shock was felt in a particular location of an earthquake.
When rocks break because of stress, the energy released is in the form of a(n) ____.
A fault that occurs in response to pulling or tension. Responsible for the Sierra Nevadas.
An instrument that records and measures seismic waves
Plate boundary where plates come together and put under pressure until the rock breaks.
This method rates earthquakes according to the level of damage the quake causes.
A fault that occurs in response to squeezing or compression. Responsible for the Himalayas.
When seismic waves reach the surface, they become a ____ which can produce severe ground movements.
Smaller earthquakes that occur in the same general area after the main earthquake.
The energy released from an earthquake that travels through the Earth.
Plate boundary were rocks can break, causing the plates slide past each other along a fault.
A seismic wave that causes particles of rock to move in a back-and-forth direction
Down
Plate boundary where plates pull apart, stretching the crust and breaking along the fault.
The place inside the Earth where the rock first breaks is called the earthquake’s ____.
An earthquake's _______ is a number geologists assign to an earthquake based on the earthquake's size.
When a rock breaks when an earthquake occurs, it snaps back to its original shape. This snap back is called _____ rebound.
The place on Earth’s sur- face that is right above the focus.
This method rates an earthquake's magnitude based on the size of a quake's seismic waves.
A fault that occurs in response to shear forces. The San Andreas fault is an example.
Seismologists can use a _____ to find the epicenter of an earthquake.
An earthquake that occurs before the main, larger seismic event.
Aseismic wave that causes particles of rock to move in a up-and-down direction