Earthquakes

What is an epicenter? 

• Where an earthquake started
• The surface right above where an earthquake started 

What is a fault?

• A crack in a plate.
• Where two plates move toward each other.

What is a convergent boundary?

• When two plates move away from each other.
• When two plates move toward each other.

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

• P waves
• S waves

An instrument that detects and measures earthquakes is a 

• seismogram
• focus seismic map
• focus
• seismograph 

Most earthquakes happen along the _________________. 

• coast
• faults
• desert
• directions

Earthquakes under the water can cause _________________________________.

• tornadoes
• tsunamis
• lightening
• hailstorms

A tracing of earthquake motion that is created by a seismograph. This can be on a huge sheet of paper, shows P-waves 

• Seimogram 
• Seismic wave
• Carrollton 
• Deformed 

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