Earthquakes & Seismic Waves

The epicenter of an earthquake is

• The point below the surface where rock begins to break and the first motion occurs
• The seismic station closest to the earthquake
• The place where the greatest damage occurs
• The point on the surface directly above the focus

Earthquakes under the water can cause _________________________________.

• tornadoes
• tsunamis
• lightening
• hailstorms

Seismology

• Branch of science that studies earthquakes 
• Earthquakes 
• The sudden return to elastically deformed rock to its original shape. 
• Focus 

P-wave 

• The center of a earthquake. 
• Also know as shear or secondary wave. 
• Always the first to arrive;  seismic wave that causes particles of rock to move in back-and-forth direction
• Hilbert

Many earthquakes happen along the borders of...

• Countries

• Tetonic Plates

• Climate Zones

• None of the above.

Main type of seismic waves that can only travel through the surface of the Earth.

• Primary waves

• surface waves

• secondary waves

• electromagnetic waves

The point where the earthquake begins.

• epicenter

• fault

• focus

• seismic waves

This is known as the sudden shaking of the ground and known as the sources of seismic waves.

• earthquake

• tsunami

• flood

• typhoon

What does a seismograph record?

• Radioactive Waves

• Seismic Waves

• Ultraviolet Rays

• X-rays

A scientist that studies earthquakes and seismic activity is called a ____________.

• Physicist

• Chemist

• Seismologist

• Archaeologist