Forces
A force that acts on rock to change its shape or volume.
Stress
Tension in earth's crust pulls apart and it is at angle, so one block of rock lies above while the other block lies below
Normal Faults
Even small earthquakes can cause damage.
True or False?
True
Developed to rate earthquakes according to level of damage at a given place.
Mercalli Scale
A weak spot in the crust where molten material comes to the surface.
Volcano
Pulls on the crust, stretching rock so that it becomes thinner in the middle.
Tension
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When you do not follow instructions, stay on task, or behave appropriately and receive negative consequences; who's fault is that?
Your own fault
The shaking and trembling that results from the movement of rock beneath earth's surface
Earthquake
A number that geologists assign to an earthquake based on the earthquake's size
Magnitude
A molten mixture of rock-forming substances, gases, and water from the mantle.
Magma
Squeezes rock until it folds of breaks
Compression
In places where the rock of the crust is pushed together, compression causes it to form. It has the same structure as a normal fault, but the blocks move in the opposite direction.
Reverse Fault
The point in the surface directly above the focus
Epicenter
A rating of an earthquake's magnitude based on the size of the earthquake's seismic waves.
Richter Scale
When magma reaches the surface it's called this.
Lava
Pushes a mass of rock in two opposite directions and can cause rock to break and slip apart.
Shearing
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When you put out positivity, you receive positivity.
True or False?
True
The area beneath earth's surface where rock that is under stress breaks, triggering an earthquake.
Focus
An instrument that records and measures seismic waves.
Seismograph
An area where material from deep within the mantle rises and then melts, forming magma
Hot Spot
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Are you going to have a great day today?
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In places where plates move past each other shearing creates it. The rocks on either side of it slip past each other sideways, with little up or down motion.
Strike-slip Fault
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A rating system that estimates the total energy released by an earthquake
Moment Magnitude Scale
Volcanoes that create a string of islands
Island Arc