Earth Structure And Processes

Front 1

Seismic Waves

Back 1

- an elastic wave in the earth produced by an earthquake or other means.

Hint 1

Front 2

Primary Wave

Back 2

- a "longitude" wave that moves out from earthquake focus. It travels the fastest out of all of the 3 waves, and moves through solid and liquid layers of the earth.

Hint 2

Front 3

Secondary Wave

Back 3

- a "transverse" wave that is more out from the earths focus. This wave is more slower then primary wave, and can only go through solid rock.

Hint 3

Front 4

Density

Back 4

- how much mass per volume

Hint 4

Front 5

Focus

Back 5

- the focus of the earthquake is the point in the crust, or mantle, where then energy is released.

Hint 5

Front 6

Epicenter

Back 6

- is the point on earths surface directly above the focus; energy that reaches the surface is greatest at this point.

Hint 6

Front 7

Triangulation

Back 7

- identifies the epicenter of an earthquake

Hint 7

Front 8

Seismograph

Back 8

- A tool that measures seismic waves

Hint 8

Front 9

Seismogram

Back 9

- the vibration record, called seismogram looks liked jagged lines on a paper

Hint 9