Plate Boundaries
Two plates spread away from each other
What is a divergent boundary?
The way scientists use 3 readings from the seismograph stations to find the location of the epicenter
Vents in Earth's crust through which materials are forced out
What are volcanoes?
The point on the surface of the Earth directly above where the earthquake begins
What is an epicenter?
Earth is divided into three of these.
What are layers?
Two plates crash into each other and crumple rather than subduct
What is a Collisional Boundary?
A break or crack in the rocks of the lithosphere
What is a fault?
What is extinct?
The measure of energy released during an earthquake
What is magnitude?
It is under the crust but above the core.
What is the mantle?
Plates move in a sliding motion, moving past each other
The point below the surface of the earth where an earthquake begins
What is the focus?
A volcano with gently sloping sides
What is a Shield Volcano?
When something is able to float or keep something else floating
What is Buoyant?
What is the asthenosphere?
Two plates move into each other, and the denser plates subducts underneath the lighter plate
What is a Subduction Zone?
The fastest of all waves
What are P-waves?
What is a hot spring?
This existed before continental drift
What is Pangea?
In Greek is means stone or rock
Lithosphere
Create volcanoes independent of tectonic plates
What are Hot Spots?
A set of numbers used to describe the magnitude of an earthquake
What is the Richter Scale?
The location where most volcanoes are created and located
What are plate boundaries?
A scientist that studies the earth
What is a geologist?
This cycle occurs in the mantle, cycling cool and hot magma
What are convection currents?