(E8) Volcanoes & EQs test prep

Front

What is the Moment Magnitude Scale?

Back

A scale that measures the total energy released by an earthquake.

Front

Which city is most likely to be affected by an earthquake with an epicenter near it?

Back

The city closest to the epicenter will experience the most impact.

Front

What type of volcanic eruption is characterized by explosive force?

Back

Explosive eruptions are the most destructive type of volcanic activity.

Front

What is pyroclastic material?

Back

Magma that is blasted into the air during a volcanic eruption and hardens.

Front

What information does a seismogram provide about earthquakes?

Back

It shows the distance from the epicenter and the strength of the earthquake.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface; lava is magma that has reached the surface.

Front

What is an earthquake?

Back

A sudden release of energy in the Earth's crust that creates seismic waves.

Front

What is the Richter Scale?

Back

A scale that measures the magnitude of an earthquake based on seismic wave amplitude.

Front

What are tectonic plates?

Back

Massive slabs of Earth's lithosphere that move and interact, causing earthquakes and volcanic activity.

Front

What is a fault line?

Back

A fracture in the Earth's crust where blocks of land have moved relative to each other.