1 - Earthquakes

What is the #1 cause of earthquakes?

• the sudden formation of a new fault

• the sudden slip on an already existing fault

• movement of magma in, or an explosion of, a volcano

The epicenter of an earthquake can be found...

• Beneath the Earth's surface

• Above the Earth's surface

This type of wave travels the fastest!

• Compressional (P)

• Shear (S)

The "S" for this S wave stands for....

• Shear Wave

• Short Wave

• State Wave

• Shock Wave

The amount of energy carried by seismic waves decreases the father they travel.

• True

• False

The instrument that is used to measure the ground motion from an earthquake is called a

• Seismogram

• Seismograph

• Phone

• Sonicgraph

Scientists use _______________________ (math!) to find the epicenter of an earthquake

• Tangent

• Triangulation

• Reflection

• the Area

All magnitude scales are ______________________, meaning that an increase of one unit of magnitude represents a tenfold increase

• Squared

• Cubed

• Logarithmic

• Added