The energy (or heat) that comes from two things being rubbed together.
The area of a volcano where the magma is pushing out and trying to erupt. This is where an explosive eruption will happen.
An area of the crust where the asthenosphere is extremely hot causing magma to melt throu the lithosphere. This causes a shield volcano and is not on the boundary between two plates.
The most common volcano. Known for its layers of lava flows and cinder. Built up by violent eruptions that leave the tephra followed by calm eruptions that leave lava flows. They build tall and steep volcanoes.
Cinder cone volcano
Small, but steep volcanoes built of tephra from violent eruptions.
Volcanoes built up of lava flows from calm eruptions. They create very tall volcanoes with gentle slopes.
The tube from the magma chamber to the crater that most of the magma travels through.
A small tube that branches off from the main vent.
The opening at the top of a volcano where most of the magma comes out. Sometimes formed by an explosive eruption.
ash, cinder and rock that are blown up during a violent eruption.
Little pieces of rock that are blown up during a violent eruption.
The river of lava that comes out of a crater during an eruption.
Layers, switching between tephra and lava flow in a stratovolcano.
The section below a volcano where the magma is stored up before and during an eruption.
Magma, once it has left the volcano. Lava has been heated and has a lower viscosity than magma.
How hard it is to make a liquid flow. Glue has more viscosity than water.
How much one thing is pushing on another. When gas inside the volcano has a lot of pressure, it causes an explosion.
The way that a more dense plate will sink below a less dense plate and melt into the asthenosphere.
The part of the lithosphere that is under the ocean.
The part of the lithosphere that is under the ocean
The machine used to measure earthquakes.
The print out of a seismometer showing how big an earthquake was.
The scale for measuring the intensity of an earthquake. The scale runs from 1 - 10 measuring in powers of 10. A 3.0 earthquake is 10 to the 3rd power, or 100 times stronger than a 1.0 earthquake.
The center of an earthquake. The middle of the fault.
A crack or a break in the lithosphere where two plates are in contact.
When two plates slide away from each other vertically.
When two plates slide towards each other vertically.
When two plates slide along each other horizontally.