Measuring Earthquakes

The place where an earthquake originates inside the Earth's surface is called...

• Epicenter

• Focus

• Underground

• Crust

The place on the Earth's surface, above the origin of the earthquake.

• Epicenter

• Focus

• Surface

• Crust

What is the instrument used to measure earthquakes?

• Seismograph

• Seismologist

• Scale

• Seismogram

Which city is closest to the epicenter?

• A

• B

• C

Which seismogram represents a city that is far from the epicenter of an earthquake?

• New York, NY

• Nome, Alaska

• Guadalajara, Mexico

Which wave is the most destructive and travels on the surface?

• Secondary Wave

• Primary Wave

• Long Wave

5. Which type of wave travels the fastest?

• Primary Wave

• Secondary Wave

• Long Wave

This is created by earthquakes that occur on the ocean floor.

• longshore current

• gulf stream

• tsunamis

• high tide

What scale determines the amount of damage an earthquake causes?

• Richter scale

• Mercalli scale

• Moment magnitude scale

• seismographic scale

S-waves can move through which of the following?

• Gas

• Liquid

• Solid

• All of these