Layers
This layer is between 5-50 km thick.
What is the crust?
This plate boundary occurs when two plates move apart.
What is a divergent boundary?
This volcano is generally small with steep sides.
What is a cinder-cone volcano?
This is the point where an earthquake originates, usually several km below Earth's surface.
What is a focus?
This instrument is used to measure horizontal or vertical motion during an Earthquake.
This layer is made up of liquid iron. It creates the Earth's magnetic field.
What is the outer core?
This boundary is where most Earthquake's occur.
What is a transform boundary?
This is the cause of volcanoes far from plate boundaries, such as Hawaii.
What is a hot spot?
This scale measures energy released. It takes into account fault size, movement and rock stiffness.
What is the moment magnitude scale?
This type of wave travels along Earth's surface.
What is a surface wave?
This layer is hot, dense, asphalt like layer of rock that flows causing the plates to move.
What is the mantle?
What is oceanic-continental convergent boundary?
This type of volcano is the least explosive, its magma flows slowly.
What is a shield volcano?
These are the three ways that the depth of an earthquake's focus be classified.
What are shallow, intermediate and deep?
This is a record produced that can be used to find the epicenter of an earthquake.
What is a seismogram?
This layer is the hottest part of Earth and is a solid ball.
What is the inner core?
This is the cause of what moves the plates, where thermal energy causes material to expand and become less dense.
What is convection current?
This volcano is the one built by alternating layers of lava flows, volcanic ash, cinders and bombs.
What is a composite volcano?
What is the Richter scale.
This is the wave that moves up and down, and is unable to travel through liquid.
What is a S-wave?
This includes two layers that is involved in plates that move.
What is the lithosphere?
Oceanic-Oceanic convergent boundaries give result to this.
What is an ocean trench?
These are the factors that affect the formation of magma.
What is temperature, pressure & water.
Narrow ones of these is where most of the world's earthquakes occur.
What is a seismic belt?
These waves squeeze & pull rocks in the same direction as the waves.
What is a p-wave?