Show:
Volcanoes 3.1/3.2
Earthquakes 2.1/2.2
Volcanoes 3.2/3.3
Earthquakes 2.3
Mixed Bag
100
Magma that has reached the Earth's Surface.
What is lava?
100
An instrument that constantly records ground movements.
What is a seismograph?
100
Rain that contains a large amount of acid.
What is acid rain?
100
A smaller earthquake that follows a more powerful one.
What is an aftershock?
100
The force exerted when an object presses on, pulls on, or pushes against another object.
What is stress?
200
Mountains that form as continental crust crumple and bend into folds.
What are folded mountains?
200
Moves through solids, liquids, and gases.
What are Primary waves (P-waves)?
200
Hot springs that form in spreading centers in the ocean.
What are deep-sea vents?
200
The point underground where the rocks first begin to move.
What is the focus?
200
Long lines of mountains that were formed at about the same time and by the same processes.
What is a mountain range?
300
A dense cloud of superhot gases and rock fragments that are expelled from a volcano.
What is a pyroclastic flow?
300
Fracture or break in the earth’s lithosphere, along which blocks of rock move past eachother
What is a fault?
300
A cone-shaped hill that is made out of ashed and rock fragments. They can be found along the sides of other volcanoes.
What are cinder cone volcanoes?
300
A wave triggered by an earthquake, volcanic eruption, or a landslide.
What is tsunami?
300
The point directly above the focus.
What is an epicenter?
400
A volcano with a broad flat dome. Lava is low in silica and erupts gently.
What is a sheild volcano OR Mauna Loa?
400
Blocks of rock above the fault plane that move up relative to the other blocks
What is a reverse fault?
400
An opening in the Earth's crust wich molten rock, rock fragments, and hot gases erupt.
What is a volcano?
400
This scale is used to measure the earthquakes total amount of energy released. It is the more accurate of the two scales.
What is the moment magnitude scale?
400
Mount Saint Helens is an example of this type of volcano.
What is a composite volcano?
500
Mountains that form a blocks of rock move up or down along normal faults.
What are fault block mountains?
500
Vibrations caused by earthquakes that move outward in multiple directions.
What are seismic waves?
500
Releases hot steam and gases instead of hot liquid water.
What is a fumerole?
500
A process by which the shaking of the ground causes soil to act like a liquid.
What is soil liquefaction?
500
The distance the rocks move, and how much stress is built up before they move determines the earthquakes _______.
What is strength?