This forms where continental plates collide, causing the crust to fold and crumple.
What is a fold mountain
100
When the stress between rocks in a fault become so great that the rocks break, and the plates shudder and jolt into a new position, it results in this.
What is an earthquake.
100
An opening in Earth's crust through which melted rocks, hot gases, rock fragments, and ash reach the surface
What is a volcano
100
A tool used to detect and measure the amount of ground shaking during an earthquake
What is a seismograph
100
A large wave produced by an earthquake, landslide, or volcanic eruption on the sea floor.
What is a tsunami.
200
Over time, this causes the fold of mountains to soften.
What is erosion or weathering
200
The first wave to arrive in an earthquake.
What are P-waves
200
This type of volcano can be classified by the fact that it usually only erupts once
What is a cinder-cone volcano
200
The point underground where an earthquakes begins
What is the focus
200
A string of islands formed where 2 oceanic plates meet
What is an island arc
300
This is formed from a block of crust that is pushed up or down along a fault.
What is a fault-block mountain
300
These waves are felt as a side- to - side motion
What are S- waves
300
This type of volcano can be classified based on the fact that is made up of alternating layers of ash and lava.
What is a composite volcano
300
The point on Earth's surface directly above where an earthquake originates underground
What is the epicenter
300
When magma reaches Earth's surface it becomes ____________.
What is lava
400
This is formed when magma rises but doesn't break through the crust, resulting in a dome- shaped mound.
What is a dome mountain
400
The Mercalli scale measures _________________, while the Richter scale measures __________________.
What are intensity and magnitude
400
The largest type of volcano
What is a shield volcano
400
The measure of the amount of damage an earthquake produces
What is intensity
400
The largest earthquake in California occurred here
What is San Fransisco
500
These mountains can form away from plate boundaries, where there is a hot spot.
What is a volcano.
500
The shaking of an earthquake is felt strongest at the _____________.
What is the epicenter
500
Mauna Loa is a famous example of this type of volcano