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Earthquake Topics — Magnitudes

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A Comparison of Two Bay Area Earthquakes: 1989 v. 1906 — Investigate the shaking intensity and magnitude of these two earthquakes.
USGSEffects, Earthquake
Intensity
Lessons online
Magnitudes
San Andreas Fault
Graphics
Lesson Plans
High School

About Earthquakes — descriptions and graphics of earthquakes and their effects
Univ. of Nevada, RenoSeismic waves
Plate tectonics
Photos, Earthquake
Magnitudes
Intensity
Effects, Earthquake
Earth structure
Basics
Lesson Plans
Graphics
Middle School
High School
General Audience
College

Bigger Faults Make Bigger EQ's — three different rope lengths are used to demonstrate how a fault ruptures in an EQ and why bigger faults make bigger EQ's
USGSMagnitudes
Faults - SS, DS, Thrust, etc.
Lesson Plans
Elementary school

Digital Online Geology - Earthquakes — Online version of "Earthquakes" by Edward J. Tarbuck, Frederick K. Lutgens, and Dennis Tasa. This informative chapter about earthquakes has images, text, quizzes, and narrated animations explaining what happens when earthquakes occur.
TASA Graphic ArtsBasics
Books
Damage from Earthquakes
Effects, Earthquake
Faults - SS, DS, Thrust, etc.
Intensity
Locating Earthquakes
Locations
Magnitudes
Plate tectonics
Prediction
Seismic waves
Shaking
Graphics
Info
Lesson Plans
College
High School

Discover Our Earth — interactive lessons on earthquake basics, locations, magnitudes and more!
Cornell UniversityPlate tectonics
Maps
Magnitudes
Locations
Locating Earthquakes
Instrumentation, seismographs, monitoring
Faults - SS, DS, Thrust, etc.
Education resources
Basics
Lesson Plans
Interactive
Info
Graphics
General Audience
College
High School

Earth Science Education Activities — a wealth of excellent hands-on activities for teaching about earthquakes, volcanoes, seismic waves, plate tectonics, earth structure, seismic waves, convection, seismometers and more!
Purdue Univ.Shaking
Seismic waves
Preparedness
Plate tectonics
Magnitudes
Locations
Locating Earthquakes
Lessons online
Intensity
Instrumentation, seismographs, monitoring
Hazards
Geology
Faults - SS, DS, Thrust, etc.
Engineering, Earthquake
Effects, Earthquake
Education resources
Earth structure
Basics
Lesson Plans
Graphics
Middle School
High School
Elementary school
College

Earthquake Density Maps for the World — Maps of average number of earthquake per year, magnitude 5.0 and greater, for the World. Maps are grouped by depth intervals.
USGSStatistics
Seismicity
Maps
Magnitudes
Graphics
Info
General Audience

Earthquakes — slide-show type presentation
Tech Museum of InnovationBasics
Damage from Earthquakes
Earth structure
Effects, Earthquake
Photos, Earthquake
Historic Earthquakes
History-Earthquakes, Seismology
Instrumentation, seismographs, monitoring
Locating Earthquakes
Magnitudes
Nuclear explosions
Plate tectonics
Preparedness
Seismic waves
Info
Graphics
Middle School
High School
General Audience

Earthquakes by Bruce A. Bolt Online Companion — links related to subjects covered in book
W.H. Freeman & Co.Basics
Books
Historic Earthquakes
Instrumentation, seismographs, monitoring
Magnitudes
Plate tectonics
Prediction
Tsunamis
Info
College

Earthquakes, MegaQuakes, and the Movies — discussion about facts versus fantasies
USGSSocietal Effects
Shaking
San Andreas Fault
Prediction
Plate tectonics
Myths
Magnitudes
Forces
Faults - SS, DS, Thrust, etc.
Earthquake facts
Effects, Earthquake
Damage from Earthquakes
Info
Middle School
High School
General Audience

Earthquakes: The Rolling Earth — slide-show type presentation
Univ. of North DakotaBasics
Magnitudes
Seismic waves
Graphics
General Audience
Middle School
Elementary school

EarthScience Center, The — the USGS consulted on this interactive web-based learning module developed by Logal Software Co,; excellent learning tool for earthquake location, magnitude, distribution and forecasting, Plug-in required that works on PCs and MacOS9 only
USGS & RiverdeepSeismicity
Magnitudes
Locations
Basics
Lesson Plans
Interactive
Graphics
Fun & Games
High School
General Audience
College

Global Earthquake Explorer, The — easy tool for non-seismologists to retrieve, display and analyze seismic data
Univ. of South Carolina, IRISMagnitudes
Locations
Instrumentation, seismographs, monitoring
Seismic waves
Interactive
Graphics
High School
College

How Earthquakes Work — description of the basics
How Stuff WorksBasics
Earth structure
Faults - SS, DS, Thrust, etc.
Locating Earthquakes
Magnitudes
Plate tectonics
Preparedness
Seismic waves
Info
Graphics
Middle School
High School
General Audience

How much bigger is a magnitude 8.7 earthquake than a magnitude 5.8 earthquake? — How to compare magnitude and energy. With "Try It Yourself" Calculator.
USGSMagnitudes
Info
Fun & Games
Interactive
College
General Audience
High School
Middle School

Isoseismal Maps (PDF) — learn the difference between intensity and magnitude and gain experience with contouring on maps
USGSIntensity
Education resources
Lessons online
Magnitudes
Lesson Plans
Elementary school
Middle School

Living in Earthquake Country-Teaching Box — Explores how and why earthquakes cause damage, seismic waves, the ability of scientists to predict the likelihood and severity of earthquakes at specific locations, the difference between magnitude and intensity, the occurrence of earthquakes along patches of planar faults, and the potential damage caused by earthquakes such as landslides, liquefaction, or structural failure.
DLESEDamage from Earthquakes
Hazards
Effects, Earthquake
Education resources
Intensity
Lessons online
Magnitudes
Prediction
Seismic waves
Societal Effects
Graphics
Info
Lesson Plans
Middle School
High School

Living in Earthquake Country: A Teaching Box — 7 lessons with the goal of teaching students about how and why earthquakes cause damage. Explores seismic waves, the ability of scientists to predict the likelihood and severity of earthquakes at specific locations, the difference between magnitude and intensity, the occurrence of earthquakes along patches of planar faults, and the potential damage caused by earthquakes such as landslides, liquefaction, or structural failure.
DLESEBasics
Effects, Earthquake
Faults - SS, DS, Thrust, etc.
Geology
Intensity
Lessons online
Magnitudes
Parkfield
Seismic waves
Lesson Plans
High School
Middle School

Magnitude / Intensity Comparison — Explains the difference between magnitude and intensity.
USGSMagnitudes
Intensity
Info
General Audience

Magnitude 7 and Greater Earthquakes This Year — List and map of magnitude 7 and greater earthquakes this year. List and map of deaths from earthquakes this year.
USGSMagnitudes
Deaths from Earthquakes
Statistics
Info
General Audience

Magnitude 8 and Greater Earthquakes Since 1990 — List of magnitude 8 and greater earthquakes since 1990.
USGSMagnitudes
Statistics
Info
General Audience

Magnitude versus Intensity Lesson (PDF) — classroom lesson to teach the difference between earthquake magnitude and earthquake intensities
USGSIntensity
Education resources
Lessons online
Magnitudes
Lesson Plans
Graphics
Middle School
High School

Measuring the Size of an Earthquake — How the size of an earthquake is measured.
USGSMagnitudes
Locating Earthquakes
Intensity
Info
General Audience

MegaQuakes/Earthquake Simulator — dial up an earthquake and see the results
IRISFaults - SS, DS, Thrust, etc.
Education resources
Lessons online
Magnitudes
Lesson Plans
Graphics
High School

Number of Magnitude 7.0 and Greater Earthquakes per Year, Since 1900 — List of the number of magnitude 7.0 and greater earthquakes per year, since 1900.
USGSMagnitudes
Statistics
Info
General Audience

Putting Down Roots in Earthquake Country — Earthquakes and prepardeness in southern California
USGS & Southern California Earthquake Center (SCEC)San Andreas Fault
Preparedness
Maps
Magnitudes
Locations
Locating Earthquakes
Hazards
Faults - SS, DS, Thrust, etc.
Effects, Earthquake
Earthquake facts
Books
Basics
Info
Graphics
General Audience

Richter Magnitude Scale, The — Description of the Richter magnitude scale.
USGSMagnitudes
Info
General Audience

Science Explained, The — links to popular science articles about earthquake research
USGSBasics
Crustal deformation
Effects, Earthquake
Engineering, Earthquake
Surface features - Faults, Earthquakes
Education resources
Faults - SS, DS, Thrust, etc.
Geology
Hazards
Historic Earthquakes
History-Earthquakes, Seismology
Instrumentation, seismographs, monitoring
Locations
Magnitudes
Modeling
Plate tectonics
Prediction
Rock mechanics
Seismicity
Statistics
Info
General Audience
College

Severity of an Earthquake, The — measuring earthquakes, online USGS general interest publication
USGSMagnitudes
Intensity
Hazards
Graphics
Info
Middle School
High School
General Audience
College

The Richter Scale — An interactive demonstration of calculating the magnitude of an earthquake based on amplitude and S and P wave locations
Scripps Institution of OceanographyMagnitudes
Basics
Interactive
Middle School
High School
General Audience
Elementary school
College

Virtual Earthquake & Other Labs — you're the scientist, and you have to locate the earthquake and determine the magnitude
Calstate LASeismic waves
Magnitudes
Locating Earthquakes
Geology
Education resources
Interactive
Info
Graphics
Middle School
High School
College

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