Structure
Seismology
More Seismology
Earthquake Prediction
Disaster
100
the point on the Earth's surface directly above an earthquake's starting point?
What is epicenter?
100
the study of earthquakes?
What is seismology?
100
the waves that come second?
What are S-Waves?
100
the area along a fault where relatively few earthquakes have occurred?
What is seismic gap?
100
where earthquakes occur
What are fault lines?
200
the point inside the Earth where an earthquake begins?
What is focus?
200
an instrument that records seismic waves?
What is a seismograph?
200
the place in the Earth's crust where earthquakes can occur?
What is a fault (line)?
200
the guess that earthquakes will occur within an area based on past activity?
What is gap hypothesis?
200
reinforced steel in forms of an x used in buildings
What are cross braces?
300
the waves that travel through the Earth?
What are seismic waves?
300
the waves that can only travel through solids?
What are S-waves?
300
the change in the shape of rock in response to stress
What is deformation?
300
the earthquake that was predicted in 1988 to occur within the next 30 years using the gap hypothesis?
What is the Loma Prieta Earthquake?
300
Used at the top of buildings to reinforce them. It shifts the building in case of an earthquake.
What is a mass damper?
400
sudden return of elastically deformed rock to its undeformed shape
What is elastic rebound?
400
the number of seismograph stations needed to determine the epicenter of an earthquake?
What is 3?
400
Seismologists use this to measure an earthquake's strength.
What is Richter Scale?
400
This is the direct cause of earthquakes.
What is elastic rebound?
400
the two most important items needed in an earthquake preparedness kit.
What are food and water?
500
These push, pull, or scrape against eachother in the earth.
What are tectonic plates?
500
During elastic rebound, rock releases this that causes an earthquake.
What is energy?
500
The Loma Prieta Earthquake measured what on the Richter Scale?
What is 7.1?
500
Seismic waves last much longer here than on the Earth.
What is the moon?
500
The year of the Loma Prieta Earthquake.
What is 1989?
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