Earth's Stress
The continental crust is constantly _____ due to plate tectonics
What is CHANGING?
A collision of two continental plates creates...
What are MOUNTAIN RANGES?
A vibration in the ground that results from the movement along faults or breaks in the Earth’s crust
What is an EARTHQUAKE?
Only travel through solids, temporarily changing the shape; slower waves
What are S-WAVES?
A weak spot in Earth’s crust where molten material, or magma, comes to the surface
What is a VOLCANO?
Squeezes rock until it folds or breaks
What is COMPRESSION stress?
Landforms created by shearing include...
What are FAULTS or FAULT ZONES?
Earthquakes carry a tremendous amount of ______
What is ENERGY?
Can produce severe ground movement with a wavelike motion; slowest of all the waves
What are SURFACE waves?
Formed by volcanoes that rim the Pacific Ocean
What is the RING OF FIRE?
Pulls on the crust, stretching rock so that it becomes thinner in the middle
What is TENSION stress?
Forms when the tension causes the oceanic crust to spread, allowing hot rock from the mantle to rise
What is MID-OCEAN RIDGE?
The point beneath the Earth’s surface where rock under stress breaks to cause an earthquake.
What is the FOCUS?
Compression waves that travel through solids and liquids; the fastest waves
What are P-WAVES?
A bowl-shaped area that forms at the top of a volcano
What is a CRATER?
The force that acts on a rock to change its shape or volume; it adds potential or stored energy to the rock until it changes shape or breaks
What is STRESS?
Give an example of a landform created by compression stress
MT RANGES, OCEAN TRENCHES, or VOLCANIC ARCS
The point on the surface directly above the focus
What is the EPICENTER?
Carry the energy of an earthquake away from the focus
What are SEISMIC WAVES?
An eruption with magma with high silica content. It is too sticky to flow very far and has high viscosity.
What is an EXPLOSIVE eruption?
How do you locate an earthquake’s epicenter?
What is TRIANGULATING DATA or SEISMOMETERS?
A volcano that is not active but may become active
What is a DORMANT volcano?