SCI 7 Earthquakes Pt I

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

Which wave travels fastest, always being the first detected by seismic stations?

• P waves
• S waves
• Surface Waves
• Fans doing "the wave" at Comerica Park

Using the Moment Magnitude Scale (or Richter Scale), approximately how much more energy is released in a magnitude 6 earthquake compared to magnitude 5 quake?

• 1x 
• 32x 
• 100x 
• 14x

Earthquakes happen every day. Most are too small for humans to notice.

• True
• False

This is the area beneath the Earth's surface where the earthquake actually occurs.

• epicenter
• focus
• fault line
• tectonic plate

The printed record of a seismic wave is a 

• Seismograph
• Seismogram
• Seismometer
• Richter scale

Most earthquakes happen along a _________________. 

• coastline

• fault boundary

• mountain range

• school district boundary

What are the waves called that come from an earthquake?

• Thunder
• Seismic 
• Surfing 
• Cosmic

What are the waves called that come from an earthquake?

• Thunder
• Seismic 
• Surfing 
• Cosmic

What are vibrations caused by the sudden movement of rocks and release of energy from this movement occurs called? These occur many times, every day on Earth!

• earthquakes

• volcanoes

• faults

• plate tectonics