Show:
Faults
Seismic Waves
Earthquake
Volume
Belts
100
What kind of stress that pushes a mass of a rock in two directions?
Shearing
100
P Waves
The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like and accordion is called what?
100
Aftershock
What can cause damage days or months after a large earthquake?
100
There is a risk of earthquakes
Geologists know that wherever plate movement stores energy in the rock along faults there is what?
100
P waves
What type of earthquake wave can travel through both liquids and solids?
200
Hanging Wall
In a normal fault, the part of the fault that lies below the other part is called what?
200
Fault Block Moutains
The land between two normal faults moves upward to form a what?
200
Tsunami
If the coast guard warns of a giant wave of water approaching the shore as a result of a major earthquake is a warning of a?
200
Stress
A force that acts on rock to change its shape or volume is called what?
200
The boundaries of Earth’s plates
Where do volcanic belts form along?
300
Compression
Which type of stress force produces reverse faults?
300
Secondary waves
What are S waves also known as?
300
Drop, cover, and hold
The best way to protect yourself in an earthquake is to __________, __________, and ____________
300
Damage to buildings
Most earthquake-related deaths and injuries result from what?
300
Silica
What is the major ingredient of magma?
400
anticline
A fold in rock that bends upward into an arch is called what?
400
slowly
Compared to P waves and S waves, surface waves move
400
Creep meter
A device that uses wire stretched across a fault to measure horizontal movement of the ground is called what?
400
Up and down movement
In a strike slip fault, the rocks on either side of the fault slip past each other sideways with little what?
400
Fast moving hot lava
What is pahoehoe?
500
Focus
The point beneath Earth’s surface where the rock breaks under stress and triggers an earthquake is called what?
500
Mercalli Scale
Which scale would most likely be used to tell how much earthquake damage was done to homes and buildings?
500
GPS satellite monitor
Which of the following monitors both vertical and horizontal movement along a fault?
500
Plateau
What is a large area of flat land elevated high above sea level?
500
temperature
The viscosity of magma depends upon its silica content and its what?