Seismic Activity and Plate Tectonics

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move towards each other, often resulting in the formation of mountains, earthquakes, and volcanic activity.

Front

What is the significance of the magnitude of an earthquake?

Back

The magnitude measures the amount of energy released during an earthquake, indicating its strength.

Front

In which direction did South America drift from Pangaea?

Back

South America drifted westward from Pangaea.

Front

What geological features can occur at a convergent boundary?

Back

At a convergent boundary, features such as mountains, volcanoes, and ocean trenches can form, but rift valleys cannot.

Front

Where do many earthquakes occur?

Back

Many earthquakes occur along the borders of tectonic plates.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past each other horizontally, often causing earthquakes.

Front

What is a subduction zone?

Back

A subduction zone is a region where one tectonic plate moves under another, leading to volcanic activity and earthquakes.

Front

What is the difference between oceanic and continental plates?

Back

Oceanic plates are denser and thinner than continental plates, which are thicker and less dense.

Front

What is an earthquake?

Back

An earthquake is the shaking of the Earth's surface caused by the sudden release of energy in the Earth's lithosphere.

Front

What is a seismogram?

Back

A seismogram is a record produced by a seismograph that shows the intensity and duration of seismic waves during an earthquake.