Free Printable Earthquakes

Worksheets

Earthquakes

Total questions: 10

Worksheet time: 20mins

Name

Class

Date

Earthquakes generate compressional waves [P-waves] and shear waves [S-waves]. Compared to the speed of shear waves in a given earth material, the speed of compressional waves is

always faster

always slower

always the same

sometimes faster and sometimes slower

What happens to P-waves and S-waves from an earthquake when they reach the outer core?

S-waves are transmitted through the outer core, but P-waves are not transmitted.

P-waves are transmitted through the outer core, but S-waves are not transmitted.

Both P-waves and S-waves are transmitted through the outer core.

Neither P-waves nor S-waves are transmitted through the outer core.

A huge undersea earthquake off the Alaskan coastline could produce a

tsunami

cyclone

hurricane

thunderstorm

The distance between an epicenter and seismograph’s location can be calculated by using the

arrival time of the first P-wave

difference in arrival times between P- and S- waves

amplitude of the p-wave

energy released by an earthquake

A strong earthquake that occurs on the ocean floor could result in the formation of

an ocean current

El Nino

a delta

a tsunami

A seismic station recorded the P-waves, but no S-waves, from an earthquake because S-waves were

absorbed by Earth’s outer core

transmitted only through liquids

weak and detected only at nearby locations

not produced by this earthquake

Which evidence recorded at seismic stations following an earthquake supports the inference that Earth’s interior changes from solid rock to molten iron and nickel at the mantle-core boundary?

P-waves arrive earlier than S-waves.

P-waves and S-waves are both recorded at all stations.

Only S-waves are recorded at all stations.

Only P-waves are recorded on the opposite side of Earth.