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18 Cards in this Set

  • Front
  • Back

Normal Fault

Tension (pulling) stress

Reverse Fault

Compression (pushing) stress

Strike - Slip Fault

Shearing (sliding) stress

Focus

Location on the fault where an earthquake begins

Epicenter

The point in the earth's surface directly above the focus

P wave

Push or Pull motion

S wave

At right angle from the focus, moves through solid

Surface wave

Most destructive and moves the slowest

Mercalli Scale

describes damage after earthquake

Richter Scale

It has been used since the 1970's

Moment Magnitude

this is the scale they use now

Tsunami

Begins as a small wave in the deep ocean, directly above the epicenter of an earthquake

Liquefaction

When water saturated soil is shaken during an earthquake

Magma

Is inside a Volcano

Lava

Is outside on the earth's surface

Shield Volcano

Quiet eruptions, alternating layers of hardened lava

Composite (Stratovolcano)

Formed by alternating layers of ash / rock and lava. Quiet and explosive eruptions

Cinder-Core Volcano

Explosive Eruptions. Layers of rock / ash.