7.1 Stress in Earth's Crust
7.2 The Nature of Earthquakes
7.3 Measuring and Predicting Earthquakes
7.4 Staying Safe in Earthquakes
100
Is when the rock breaks.
What is Fracture?
100
Deadly ocean waves from an earthquake
What are Tsunamis?
100
An Instrument used to create seismograms.
What is a seismograph?
100
Why all structures in earthquakes zones aren’t constructed for maximum safety.
What is cost?
200
The force per unit area that is placed on a rock.
What is Stress?
200
The initial point where the rocks rupture in the crust creating an Earthquake.
What is the Focus?
200
The number of seismographs require to locate the epicenter of an earthquake.
What is three?
200
On what to build or anchor your house to make it safest from earthquakes.
What is bedrock?
300
The most common stress at transform plate boundaries
What is Shear Stress?
300
What Theory of Earthquakes does this show?
What is Elastic Rebound Theory?
300
What it means if a seismogram records P-waves and surface waves but not S-waves.
The Earthquake was on the other side of the Earth
300
Three things that kill people most in earthquakes
Fires, Building Collapse, Tsunamis.
400
A rock fold that bends downward.
What is a Syncline?
400
The height of a wave from the center line to its crest
What is the Amplitude?
400
The earliest scale use to measure earthquake strength.
What is the Mercalli scale?
400
What its called when loose sand or soil acts like quicksand when shaken.
What is Liquifaction?
500
When stress causes a material to change shape
What is Strain or Deformation?
500
About 80% of all earthquakes strike around here.
What is the Pacific Ocean?
500
How does the energy release of a magnitude 5 earthquake compare with the energy release of a magnitude 8 earthquake on the moment magnitude scale?
What is 27000 times?
500
What its called to make older buildings earthquake safe
What is retrofitting?