Review Time G7 - 8MX

What causes the most powerful earthquakes?

• Subduction zones

• Deep ocean trenches

• Earth’s core heating

What does the spacing between the peaks of a seismogram indicate?

• The distance to the earthquake’s epicenter.

• The depth of the earthquake

• The type of seismic wave

What happens to the energy stored in the Earth's crust during an earthquake?

• It is released as seismic waves.

• It is stored for future earthquakes.

• It is absorbed by the atmosphere.

How can earthquakes affect natural landscapes like rivers and mountains?

• They can cause landslides and change river courses.

• They can make mountains disappear.

• They can create new rivers.

Earthquakes are primarily caused by volcanic eruptions rather than the movement of tectonic plates.

• True

• False

Which of the following best describes how a seismograph works?

• It records the vibrations of the ground caused by seismic waves.

• It uses a magnet to detect magnetic fields in the Earth.

• It measures the pressure changes caused by seismic waves.

What does PHIVOLCS rely on to determine the strength of an earthquake?

• Data from its own seismic monitoring stations.

• Satellite imagery.

• Community reports of shaking intensity.

What does the spacing between the peaks of a seismogram indicate?

• The distance to the earthquake’s epicenter.

• The depth of the earthquake.

• The type of seismic wave.

Which of the following is an advanced tool for real-time monitoring seismic activity?

• Global Positioning System (GPS)

• Thermometer

• Radar

• Barometer

Which of the following best describes how a seismograph works?

• It records the vibrations of the ground caused by seismic waves.

• It records the vibrations of the ground caused by seismic waves.