Ch.12 Earthquakes

The first waves to arrive are:

• P wave

• S wave

• Surface wave

The fastest waves are:

• P wave

• S wave

• Surface wave

The most destructive waves are:

• P wave

• S wave

• Surface waves

Most earthquakes are:

• deep

• shallow

A crack in earth's crust at a plate boundary is:

• an epicenter

• a fault

• a focus

The point on earth's surface where earthquake begins is:

• focus

• epicenter

The instrument that measures and records details of earthquakes

• seismograph

• seismogram

• seismologist

A scientist who studies earthquakes is a:

• seismograph

• seismogram

• seismologist

a record produced by a seismograph

• seismograph

• seismogram

• seismology

During an earthquake, you should:

• run outside

• get under a table/protect your head

• stand near tall objects