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Earthquakes and Volcanoes
Refer to Title
57
Science
11th Grade
09/30/2013

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Cards

Term
What is Stress?
Definition
The force per unit area applied to a rock
Term
What are Earthquakes caused by?
Definition
Lithospheric plate movements
Term
What results from the movement of Lithospheric Plates during an Earthquake?
Definition
Faulting
Term
Earthquakes begin at a?
Definition
Focus
Term
What is a focus?
Definition
Underground point of origin of an Earthquake
Term
Shallow Focuses occur within?
Definition
70 Km
Term
Intermediate Focuses Occur within
Definition
70 - 300 km
Term
Deep Focuses occur within
Definition
300 to 650 km
Term
What are the types of focuses
Definition
  • Shallow
  • Intermediate
  • Deep
Term
What is produced by Earthquakes?
Definition
Seismic Waves
Term
List three types of Seismic Waves?
Definition
  • Primary (P Waves)
  • Secondary (S Waves)
  • Surface (L Waves)
Term
List the types of Seismic Waves from the fastest to the slowest?
Definition
  • P Waves
  • S Waves
  • L Waves
Term
Secondary waves travel through this only
Definition
Solids
Term
P Waves can travel through the following substances
Definition
  • Solids
  • Liquids
  • Gasses
Term
L Waves begin where?
Definition
At the epicenter
Term
What type of Seismic Wave causes the most damage?
Definition
Surface Waves / L Waves
Term
P Waves or Primary Waves are also known as?
Definition
Longitudinal / Compression Waves
Term
S Waves or Secondary Waves are also known as?
Definition
Transverse / Shear Waves
Term
Primary Waves and Secondary Waves are
Definition
Body Waves
Term
What is the area on the surface above the focus?
Definition
The Epicenter
Term
How do P Waves move?
Definition
Left and right, side to side
Term
How do Secodary Waves Move?
Definition
Up and down, they shear
Term
How do L Waves move?
Definition
In circles
Term
What types of Waves are used to find an Earthquake's epicenter?
Definition
Primary and Secondary Waves
Term
How many seismograph stations are used to find an Earthquake's epicenter?
Definition
Three
Term
What is a Body Wave?
Definition
A seismic wave that passes through the Earth below the surface
Term
What type of Seismic Wave is not a body wave?
Definition
A Surface Wave
Term
What is the Richter Scale?
Definition
A scale that measures the magnitude of an Earthquake
Term
What is the number system used for the Richter Scale?
Definition
1 to 10
Term
Define Magnitude
Definition
Strength or amount of energy released by an Earthquake
Term
What does the Mercalli Scale Measure?
Definition
The amount of damage an Earthquake causes
Term
What is the number system used for the Mercalli Scale?
Definition
Roman Numerals, I through XII
Term
Define Intensity
Definition
Amount of Damage
Term
Define Volcanism
Definition
Any activity that moved magma to Earth's surface
Term
Define Volcano
Definition
A feature that forms around a vent or fissure in Earth's Crust
Term
What are the two types of Magma?
Definition
  • Mafic
  • Felsic
Term
Describe Mafic Magma
Definition
  • Dark rich in iron and magnesium
  • Low Viscosity
  • Quiet Flow
Term
Describe Felsic Magma
Definition
  • Light Colored
  • Rich in Feldspar and Silicon
  • High Viscosity
  • Explosive Eruptions 
Term
Mafic Magma has a ______ viscosity?
Definition
Low
Term
Felsic Magma has a _____ viscosity?
Definition
High
Term
Mafic Magma has a _____ Color
Definition
Dark
Term
Felsic Magma has a ______ Color
Definition
Light
Term
Felsic Magma is rich in _______, _________, and ________.
Definition
  • Feldspar
  • Silicon
  • Oxygen
Term
Mafic Magma is rich in _________ and ________
Definition
  • Iron
  • Magnesium 
Term
Mafic Magma has a ______ flow
Definition
Quiet
Term
Felsic Magma has a(n) _________ eruptions
Definition
Explosive
Term
What are the three types of volcanic cones?
Definition
  • Shield
  • Cinder
  • Composite
Term
Shield Volcanoes have a _________ lava flow
Definition
Mafic
Term
Shield Volcanoes have a ________ base and a ______ slope.
Definition
  • broad
  • gentle
Term
Cinder Volcanoes have a _______ lava flow
Definition
Felsic
Term
Cinder Volcanoes have a ______ base
Definition
narrow
Term
Cinder Volcanoes have ______ sides
Definition
Steep
Term
Composite Volcanoes are also known as
Definition
Stratovolcanoes
Term
What is the tallest type of Volcano?
Definition
Composite Volcano
Term
What type of volcano has an alternating lava flow as well as alternating pyroplastic materials?
Definition
Composite Volcano
Term
List the three major continental zones
Definition
  • Continental Crust + Oceanic Crust
  • Oceanic Crust + Oceanic Crust
  • Hot Spots
Term
How Volcanologists can predict volcanoes?
Definition
  • Taking Lava Samples
  • Watching Vibrations in the Earth's Crust
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