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Earthquakes and Tectonic Plates Quiz

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Questions and Answers

What is the role of a seismograph?

To predict when earthquakes will occur

To analyze the composition of tectonic plates

To measure and record details about earthquakes (correct)

To prevent earthquakes from happening

What causes earthquakes to occur?

Activities along fault lines

Constant movement of tectonic plates away from each other

Sudden slipping of tectonic plates along a fault (correct)

Pressure build-up between fault lines

What is the location on Earth's surface where a fault can be seen?

Crustal fracture

Seismic zone

Tectonic boundary

Fault line (correct)

What is the role of foreshocks in a series of earthquakes?

They precede the mainshock in a series of earthquakes Signup and view all the answers

Why are geologists unable to predict when earthquakes will occur?

Activities along fault lines are unpredictable Signup and view all the answers

What is the primary difference between foreshocks and aftershocks?

Foreshocks occur before the mainshock, while aftershocks occur after the mainshock. Signup and view all the answers

Why is it impossible to predict an earthquake by measuring seismic activity from a foreshock?

The initial quake could be either a foreshock or a mainshock, making it impossible to predict if another quake will happen. Signup and view all the answers

Under what circumstances can an aftershock be redefined as the main quake?

If the aftershock is stronger than the mainshock, it can be redefined as the main quake. Signup and view all the answers

What causes aftershocks to occur?

Aftershocks occur when the energy released from a mainshock is passed on to nearby rocks, building up pressure until it is released as seismic waves. Signup and view all the answers