Unit 4 Test Review: Plates, Volcanoes and Earthquakes

Front

What is a subduction zone?

Back

A subduction zone is a region of the Earth's crust where one tectonic plate moves under another plate and sinks into the mantle, often leading to volcanic activity and earthquakes.

Front

What is an aftershock?

Back

An aftershock is a smaller earthquake that occurs after a larger earthquake, typically in the same area.

Front

What characterizes a strata or composite volcano?

Back

A strata or composite volcano is characterized by its steep sides and is formed from alternating layers of lava flow, ash, and other volcanic debris.

Front

What does it mean if a volcano is described as dormant?

Back

A dormant volcano is one that has not erupted in a long time (typically over 2000 years) but has the potential to erupt again.

Front

Which seismic wave travels the fastest?

Back

The Primary Wave (P-wave) is the fastest seismic wave, traveling through solids and liquids.

Front

What is a transform boundary?

Back

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

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, often resulting in the formation of new crust, such as mid-ocean ridges.

Front

What is liquefaction?

Back

Liquefaction is a phenomenon where saturated soil loses its strength and stiffness in response to an applied stress, often during an earthquake.

Front

What is a tsunami?

Back

A tsunami is a series of ocean waves caused by large underwater disturbances, such as earthquakes or volcanic eruptions.

Front

What is a cinder cone volcano?

Back

A cinder cone volcano is a steep, conical hill formed from the accumulation of volcanic debris, such as ash and small rocks, ejected from a single vent.