Only USGS Links

Link
Organization Topics Content Types Levels

100% Chance of an Earthquake — Earthquake statistics.

USGS
  • Statistics
  • Prediction
  • Basics
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • College

2008 Bay Area Earthquake Probabilities — The overall probability of a magnitude 6.7 or greater earthquake in the Greater Bay Area is 63%, about 2 out of 3.

USGS
  • Preparedness & Response
  • iconInfo
  • General Audience

7 Steps to an Earthquake Resilient Business (PDF) — How to prepare your business for an earthquake

USGS & many other organizations
  • Preparedness & Response
  • iconInfo
  • General Audience

A Comparison of Two Bay Area Earthquakes: 1989 v. 1906 — Investigate the shaking intensity and magnitude of these two earthquakes.

USGS
  • Effects, Earthquake
  • Intensity
  • Lessons online
  • Magnitudes
  • San Andreas Fault
  • iconGraphics
  • iconLesson Plans
  • High School

Animations for Earthquake Terms and Concepts — Flash animations illustrating basic earthquake terms and concepts.

USGS
  • Education resources
  • Basics
  • College
  • Elementary school
  • General Audience
  • High School
  • Middle School

Become an Earthquake Scientist — What does a geophysicist do? What do you need to study in school to become a geophysicist? What are the opportunities?

USGS
  • Careers
  • iconInfo
  • Middle School
  • High School
  • 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

USGS
  • Magnitudes
  • Faults - SS, DS, Thrust, etc.
  • iconLesson Plans
  • Elementary school

Can It Happen Here? — Could a large damaging tsunami happen in the United States?

USGS
  • Tsunamis
  • Societal Effects
  • Preparedness & Response
  • Prediction
  • Hazards
  • Effects, Earthquake
  • Deaths from Earthquakes
  • Damage from Earthquakes
  • iconInfo
  • College
  • General Audience
  • High School
  • Middle School

Casualty (Fatality) Totals, A Note About — One-pager explaining why the numbers vary on different list.

USGS
  • Deaths from Earthquakes
  • Societal Effects
  • Statistics
  • iconInfo
  • General Audience

Central & Eastern US Fact Sheets, See also — 2-page information sheets for a general audience

USGS
  • New Madrid Seismic Zone
  • iconInfo
  • General Audience

Chile (02/27/2010) Educational Slide Set — Educational slideset for the 02/27/2010 Chile Earthquake( Download PDF)

USGS
  • Effects, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Intensity
  • Plate tectonics
  • iconGraphics
  • iconInfo
  • College
  • High School

Coastal and Marine Geology Program — All 35 coastal States and the island territories experience coastal erosion. Balancing the competing needs of citizens, government, industry, and the environment.

USGS
  • Societal Effects
  • Tsunamis
  • iconGraphics
  • iconInfo
  • General Audience

Coloring Pages to Print — Earthquake-related coloring pages to print out and color

USGS
  • Basics
  • iconGraphics
  • iconInteractive
  • Elementary school

Cool Earthquake Facts — fascinating earthquake facts

USGS
  • Basics
  • Earthquake facts
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • Elementary school
  • College

Creep Evidence of Active Faulting — Information about creep on faults, and specifically the Hayward fault.

USGS
  • Plate tectonics
  • Crustal deformation
  • Surface features - Faults, Earthquakes
  • iconInfo
  • High School
  • General Audience

Darfield, New Zealand Earthquake (09/03/2010) and its Aftershocks, Including the 02/21/2011 Christchurch Event — Educational slideset for the 09/03/2010 Darfield, New Zealand Earthquake and its Aftershocks, Including the 02/21/2011 Christchurch Event (Download PDF)

USGS
  • Education resources
  • Intensity
  • Shaking
  • Societal Effects
  • iconGraphics
  • iconInfo
  • High School
  • College

Determining the Depth of an Earthquake — brief discussion on depths of earthquakes

USGS
  • Locating Earthquakes
  • Locations
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • College

Discover Our Earth — Portal for teachers and students for learn the basics about earthquakes, volcanoes, plate tectonics, topography, and sea level changes.

USGS & DLESE
  • Plate tectonics
  • Lessons online
  • Basics
  • iconLesson Plans
  • iconInteractive
  • iconGraphics
  • High School
  • College

Early History of Seismometry (to 1900), The — history of various instruments throughout the history of seismology

USGS
  • History-Earthquakes, Seismology
  • iconInfo
  • iconGraphics
  • High School
  • General Audience
  • College

Earth's Crust, The — how thick is the Earth's crust?

USGS
  • Maps
  • Earth structure
  • iconGraphics
  • General Audience
  • College

Earthquake — Deadly earthquakes, damaging EQs, EQ density maps, world and US statistics, historical EQ lists, largest EQ lists, last EQ in..., significant EQ catalogs, seismicity maps of the world and US.

USGS
  • Seismicity
  • Maps
  • Historic Earthquakes
  • Statistics
  • Earthquake facts
  • iconInfo
  • College
  • General Audience
  • High School
  • Middle School

Earthquake 101 Powerpoint Slideshow Download — a complete PowerPoint show for the basics

USGS
  • Photos, Earthquake
  • Effects, Earthquake
  • Earth structure
  • Damage from Earthquakes
  • Basics
  • Surface features - Faults, Earthquakes
  • Faults - SS, DS, Thrust, etc.
  • Historic Earthquakes
  • History-Earthquakes, Seismology
  • Locating Earthquakes
  • Maps
  • Plate tectonics
  • Seismic waves
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

Earthquake ABC: A Child's View of Earthquake Facts and Feelings — by kids for kids, with a special section for parents and teachers

USGS
  • Basics
  • iconInfo
  • iconGraphics
  • Elementary school

Earthquake Booms, Seneca Guns, and Other Sounds — An examination of strange and unexplained sounds that are sometimes heard accompanying earthquakes.

USGS
  • Effects, Earthquake
  • iconInfo
  • College
  • General Audience
  • High School

Earthquake Facts & Earthquake Fantasy — Companion to "Earthquakes, Megaquakes, and the Movies"

USGS
  • Societal Effects
  • Effects, Earthquake
  • Myths
  • Earthquake facts
  • iconInfo
  • iconGraphics
  • General Audience
  • High School
  • Middle School

Earthquake Hazards on the Island of Hawaii — summary of earthquake hazards in Hawaii

USGS
  • Effects, Earthquake
  • Photos, Earthquake
  • Historic Earthquakes
  • History-Earthquakes, Seismology
  • iconInfo
  • Middle School
  • High School
  • General Audience

Earthquake Model — earthquake recurrence, size, and prediction demonstration instructions, brick & sandpaper model

USGS
  • Basics
  • Faults - SS, DS, Thrust, etc.
  • Prediction
  • iconInfo
  • iconLesson Plans
  • Middle School
  • High School

Earthquake Monitoring — explore the history behind earthquake monitoring; list of additional readings and links also included

USGS
  • Instrumentation, seismographs, monitoring
  • History-Earthquakes, Seismology
  • Basics
  • iconInfo
  • Middle School
  • High School

Earthquake Quartet #1 — USGS seismologist Andrew Michael explores both music and audio playbacks of the earth shaking and finds new ways to learn about the earth, earthquakes, musical instruments and music.

USGS
  • Basics
  • Education resources
  • Forces
  • People
  • Seismic waves
  • iconFun & Games
  • General Audience

Earthquake Science Explained — A series of short articles for students, teachers, and parents originally published as weekly features in The San Francisco Chronicle. This USGS General Information Product presents some of the new understanding gained and scientific advances made in the century since the Great 1906 San Francisco Earthquake.

USGS
  • Basics
  • Effects, Earthquake
  • Engineering, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Hazards
  • Paleoseismology
  • San Andreas Fault
  • Seismic waves
  • Trenching
  • iconInfo
  • Middle School
  • High School
  • General Audience

Earthquakes — general overview of earthquakes, online USGS general interest publication

USGS
  • Effects, Earthquake
  • Basics
  • History-Earthquakes, Seismology
  • Prediction
  • Seismicity
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

Earthquakes and Plate Tectonics — Explains the theory of earthquakes and plate tectonics.

USGS
  • Plate tectonics
  • iconInfo
  • General Audience

Earthquakes, MegaQuakes, and the Movies — discussion about facts versus fantasies

USGS
  • Societal Effects
  • Shaking
  • San Andreas Fault
  • Prediction
  • Plate tectonics
  • Myths
  • Magnitudes
  • Forces
  • Faults - SS, DS, Thrust, etc.
  • Earthquake facts
  • Effects, Earthquake
  • Damage from Earthquakes
  • iconInfo
  • Middle School
  • High School
  • General Audience

Echando Raices en Tierra de Terremotos — Este manual provee información sobre por qué nos deben preocupar los terremotos en el Sur de California, qué debemos hacer para estar seguros y reducir el daño, y también qué debemos saber de lo básico sobre terremotos.

USGS & many other organizations
  • Basics
  • Books
  • Earthquake facts
  • Effects, Earthquake
  • Hazards
  • Locating Earthquakes
  • Locations
  • Magnitudes
  • Maps
  • Preparedness & Response
  • iconGraphics
  • iconInfo
  • General Audience

Educational slides for the M7.0 January 12, 2010 and M8.8 February 27, 2010 Chile earthquakes — Details on the rupture of the two earthquakes, the shaking distribution, aftershock zone, estimated fatality numbers, and comparisons between the two.Slides with notes

USGS
  • Deaths from Earthquakes
  • Education resources
  • Effects, Earthquake
  • Intensity
  • Modeling
  • Plate tectonics
  • Shaking
  • iconGraphics
  • iconInfo
  • College
  • General Audience
  • High School

EQs on the Surface (PDF) — use topo maps, seismicity maps, and fault maps to understand the connection between the surface features, locations of EQs and mapped faults

USGS
  • Lessons online
  • Faults - SS, DS, Thrust, etc.
  • Education resources
  • Surface features - Faults, Earthquakes
  • Maps
  • Seismicity
  • iconLesson Plans
  • Elementary school

Flinn-Engdahl Regions — description of regions used to identify locations of earthquakes world-wide

USGS
  • Locations
  • Maps
  • iconInfo
  • High School
  • General Audience
  • College

Focal Mechanisms — Basic explanation for what a focal mechanism is, and how to interpret them.

USGS
  • Faults - SS, DS, Thrust, etc.
  • Forces
  • iconInfo
  • General Audience

Groundwater Effects from Earthquakes — A description of the potential effects of earthquakes on groundwater and wells.

USGS
  • Effects, Earthquake
  • Societal Effects
  • iconInfo
  • General Audience

Hazards 101, Earthquake — The basics of how the USGS National Earthquake Hazard Maps are made.

USGS
  • Effects, Earthquake
  • Engineering, Earthquake
  • Forces
  • Hazards
  • Shaking
  • iconInfo
  • General Audience
  • College

High Quality Earthquake Animations — Simulations of earthquake ruptures that were run on the supercomputers at Caltech's Center for Advanced Computing Research

USGS
  • Effects, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Modeling
  • Seismic waves
  • Shaking
  • iconGraphics
  • High School
  • General Audience
  • College

Human Wave (PDF) — learn about the motions of P & S waves with a fun participating exercise

USGS
  • Seismic waves
  • Lessons online
  • Education resources
  • iconLesson Plans
  • Middle School
  • High School
  • Elementary school

Ideas for Activities Using Live Seismograms — ideas for how to use real-time earthquake information in the classroom

USGS Albuquerque Seismological Laboratory
  • Education resources
  • Lessons online
  • Seismic waves
  • iconLesson Plans
  • High School
  • College

Investigating Earthquakes Through Regional Seismicity — excellent graphics, animations and activities

Southern California Earthquake Center (SCEC) & USGS
  • Education resources
  • Basics
  • Faults - SS, DS, Thrust, etc.
  • Lessons online
  • Seismicity
  • iconInteractive
  • iconGraphics
  • iconLesson Plans
  • General Audience
  • College
  • High School

Kid's Earthquake Questions & Answers — kids' questions answered by scientists

Dromore National School, Republic of Ireland & USGS
  • Basics
  • iconInteractive
  • iconInfo
  • Elementary school

Large Plate Puzzle (PDF) — cut a large world map into puzzle pieces along plate boundaries, students discuss individually land then for the whole map after the class puts pieces together; simple but powerful, discussion Q/A included

USGS
  • Plate tectonics
  • Lessons online
  • Education resources
  • iconLesson Plans
  • Middle School
  • High School
  • Elementary school

Late Night Musings of an Earthquake Seismologist — USGS Scientist Paul A. Reasenberg candidly discusses earthquake preparedness.

USGS
  • Societal Effects
  • iconInfo
  • General Audience

Listening to Earthquakes — music and earthquakes have something in common!

USGS
  • Seismic waves
  • iconInteractive
  • Middle School
  • High School
  • General Audience
  • Elementary school
  • College

Magnitude / Intensity Comparison — Explains the difference between magnitude and intensity.

USGS
  • Magnitudes
  • Intensity
  • iconInfo
  • General Audience

Magnitude versus Intensity Lesson (PDF) — classroom lesson to teach the difference between earthquake magnitude and earthquake intensities

USGS
  • Intensity
  • Education resources
  • Lessons online
  • Magnitudes
  • iconLesson Plans
  • iconGraphics
  • Middle School
  • High School

Measuring the Size of an Earthquake — How the size of an earthquake is measured.

USGS
  • Magnitudes
  • Locating Earthquakes
  • Intensity
  • iconInfo
  • General Audience

Men & Women of Seismology, The — biographies and photos of famous seismologists

USGS
  • History-Earthquakes, Seismology
  • Careers
  • People
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • College

Modified Mercalli Intensity Scale, The — A description of the Modified Mercalli Intensity Scale.

USGS
  • Intensity
  • iconInfo
  • General Audience

New Madrid Earthquakes 1811 - 1812 — Accounts of the large earthquakes that occurred in the New Madrid area in 1811 - 1812.

USGS
  • New Madrid Seismic Zone
  • iconInfo
  • General Audience

Online Coloring Pages — Interactively color earthquake-related pictures

USGS
  • Basics
  • iconInteractive
  • iconGraphics
  • iconFun & Games
  • Elementary school

Online Wordsearch Puzzles — Interactive wordsearch puzzles with earthquake-related words

USGS
  • Basics
  • iconFun & Games
  • iconInteractive
  • Elementary school

Paleoseismology and the Hayward Fault — How paleoseismology is revealing information about the Hayward fault and its past. New technology being used. Photos from the Tule Pond trench on the Hayward fault.

USGS
  • Paleoseismology
  • Geology
  • Books
  • Trenching
  • iconGraphics
  • iconInfo
  • General Audience
  • College
  • High School

PBJ Fault (PDF) — demonstrate the different types of faults with a PBJ sandwich, and then eat it double-decker

USGS
  • Plate tectonics
  • Lessons online
  • Faults - SS, DS, Thrust, etc.
  • Education resources
  • iconLesson Plans
  • Elementary school

Podcasts by USGS about Earthquakes — Collection of USGS CoreCasts (audio) about a variety of earthquake topics and issues.

USGS
  • Basics
  • Effects, Earthquake
  • Earthquake facts
  • Prediction
  • Societal Effects
  • Seismic waves
  • Hazards
  • iconInfo
  • General Audience

Protecting Your Family from Earthquakes — in English, Spanish, Chinese, Vietnamese, and Korean

USGS & many other organizations
  • Preparedness & Response
  • iconInfo
  • General Audience

Putting Down Roots in Earthquake Country - Central US edition — Earthquakes and preparedeness in the Central US

USGS
  • Maps
  • Magnitudes
  • Locations
  • Locating Earthquakes
  • Hazards
  • Faults - SS, DS, Thrust, etc.
  • Effects, Earthquake
  • Earthquake facts
  • Books
  • Basics
  • New Madrid Seismic Zone
  • Preparedness & Response
  • iconGraphics
  • iconInfo
  • General Audience

Putting Down Roots in Earthquake Country - NCA edition — Earthquakes and preparedeness in northern California

USGS & many other organizations
  • Basics
  • Books
  • Earthquake facts
  • Effects, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Hazards
  • Locating Earthquakes
  • Locations
  • Magnitudes
  • Maps
  • Preparedness & Response
  • San Andreas Fault
  • iconInfo
  • iconGraphics
  • General Audience

Putting Down Roots in Earthquake Country - SCA edition — Earthquakes and preparedness in southern California

USGS & Southern California Earthquake Center (SCEC)
  • San Andreas Fault
  • Preparedness & Response
  • Maps
  • Magnitudes
  • Locations
  • Locating Earthquakes
  • Hazards
  • Faults - SS, DS, Thrust, etc.
  • Effects, Earthquake
  • Earthquake facts
  • Books
  • Basics
  • iconInfo
  • iconGraphics
  • General Audience

Recommended Reading about Earthquakes for Kids and Adults — list of books

USGS
  • Books
  • Basics
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • Elementary school

Rock'n on Shakey Ground (4MB PDF) — The basics of earthquake science written especially for the elementary school level.

USGS & Green Frog News
  • Basics
  • iconInfo
  • Elementary school

San Andreas Fault at Wallace Creek — Interactive, 360 degree panorama of the San Andreas Fault. Aerial photos of the fault taken from a kite.

USGS
  • Crustal deformation
  • Effects, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Field trips - virtual, real
  • Geology
  • Historic Earthquakes
  • Photos, Earthquake
  • San Andreas Fault
  • iconGraphics
  • iconInteractive
  • General Audience
  • High School
  • Middle School

San Andreas Fault, The — overview of the San Andreas Fault, online USGS general interest publication

USGS
  • Basics
  • Faults - SS, DS, Thrust, etc.
  • Historic Earthquakes
  • History-Earthquakes, Seismology
  • San Andreas Fault
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

Schoolyard Geology — Online lesson plans with photos and images. Excellent geologic activities you can do anywhere! Education standards info included.

USGS
  • Geology
  • Maps
  • Surface features - Faults, Earthquakes
  • iconLesson Plans
  • Elementary school
  • Middle School

Science Fair Project Ideas — specific projects with directions and ideas

USGS
  • Education resources
  • Basics
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • Elementary school

Science of Earthquakes, The — brief and basic earthquake science concepts

USGS
  • Basics
  • iconInfo
  • Middle School
  • High School
  • Elementary school
  • College

Sea-Floor Spreading and Subduction, How to Build a Model Illustrating — Three-dimensional, cut-and-paste paper model illustrating sea-floor spreading and subduction.

USGS
  • Modeling
  • Geology
  • Faults - SS, DS, Thrust, etc.
  • Education resources
  • Earth structure
  • Plate tectonics
  • iconLesson Plans
  • Middle School

Seismic Seiches — Description and history of seismic seiches.

USGS
  • Seismic Seiches
  • iconInfo
  • General Audience

Seismographs: Keeping Track of Earthquakes — brief description on how seismographs work to locate earthquakes

USGS
  • Seismic waves
  • Networks
  • Locating Earthquakes
  • Instrumentation, seismographs, monitoring
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

Severity of an Earthquake, The — measuring earthquakes, online USGS general interest publication

USGS
  • Magnitudes
  • Intensity
  • Hazards
  • iconGraphics
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • College

Southern California Earthquakes, Faults, Photos & Rupture Movies — all things "earthquake" in southern California

Southern California Earthquake Center (SCEC) & USGS
  • Faults - SS, DS, Thrust, etc.
  • Photos, Earthquake
  • iconGraphics
  • iconInfo
  • High School
  • General Audience
  • College
  • Middle School

Southern California Integrated GPS Network Education Module — excellent graphics, animations and activities

USGS & Southern California Earthquake Center (SCEC)
  • Plate tectonics
  • GPS
  • Education resources
  • Basics
  • iconLesson Plans
  • iconInteractive
  • iconGraphics
  • High School
  • College

Table-Top Earthquakes — USGS Open-File Report 98-767 (online)

USGS
  • Education resources
  • Faults - SS, DS, Thrust, etc.
  • iconLesson Plans
  • High School
  • College

Teacher's Guide to the San Francisco Bay Area Geophysics Maps — USGS Open File Report 95-479 (online)

USGS
  • San Andreas Fault
  • Faults - SS, DS, Thrust, etc.
  • Education resources
  • Seismicity
  • iconLesson Plans
  • High School

The Parkfield, California Earthquake Experiment — Information about past earthquakes and current monitoring efforts.

USGS
  • Historic Earthquakes
  • Parkfield
  • Prediction
  • San Andreas Fault
  • Seismicity
  • Shaking
  • iconGraphics
  • iconInfo
  • General Audience

This Dynamic Earth: The Story of Plate Tectonics — excellent comprehensive overview of plate tectonics with excellent graphics, online USGS general interest publication

USGS
  • Basics
  • History-Earthquakes, Seismology
  • Plate tectonics
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • Elementary school
  • College

This Dynamic Planet — World Map of Volcanoes, Earthquakes, Impact Craters, and Plate Tectonics

USGS
  • Plate tectonics
  • iconInfo
  • General Audience

Today in Earthquake History — what happened today in earthquake history

USGS
  • History-Earthquakes, Seismology
  • Historic Earthquakes
  • Earthquake facts
  • iconInfo
  • Middle School
  • High School
  • General Audience
  • Elementary school
  • College

Tohoku, Japan 2011 M9.0 Educational Slides — Educational slides for the 2011 Tohoku,Japan M9.0 Earthquake ( PDF version

USGS
  • Effects, Earthquake
  • Faults - SS, DS, Thrust, etc.
  • Historic Earthquakes
  • Intensity
  • Plate tectonics
  • Tsunamis
  • iconGraphics
  • iconInfo
  • College
  • High School

Travel Time Curves — travel time graph for seismic waves

USGS
  • Seismic waves
  • iconGraphics
  • iconInfo
  • College

Try It Yourself Calculator — How much bigger is a magnitude 8.7 earthquake than a magnitude 5.8 earthquake?

USGS
  • Magnitudes
  • iconInfo
  • iconFun & Games
  • iconInteractive
  • College
  • General Audience
  • High School
  • Middle School

Tsunami Websites — compilation of websites that provide current tsunami information

USGS

Understanding Earthquakes Makes for Messy Science — Earthquake processes typically occur tens of miles below the Earth's surface and over geologic time, away from direct observation. Earthquake science, in particular, is often subject to interpretation and bias.

USGS
  • Preparedness & Response
  • iconInfo
  • General Audience

USGS Maps: Earthquakes-Volcanoes-Landslides — Purchase maps based on earthquake, volcano, and landslide hazards

USGS
  • Plate tectonics
  • Maps
  • Faults - SS, DS, Thrust, etc.
  • Earth structure
  • Seismicity
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

Wallace Creek Interpretive Trail Guide — Interactive online trail guide to Wallace Creek site on the San Andreas Fault

USGS & Southern California Earthquake Center (SCEC)
  • Faults - SS, DS, Thrust, etc.
  • iconInfo
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • College

What on Earth is Plate Tectonics? — excellent presentation with vivid graphics

USGS & U.S. National Park Service
  • Plate tectonics
  • Earth structure
  • iconGraphics
  • Middle School
  • High School
  • General Audience
  • Elementary school
  • College

Where are the Fault Lines in the United States East of the Rocky Mountains? — Information on where the fault lines are in states east of the Rocky Mountains.

USGS
  • Surface features - Faults, Earthquakes
  • Hazards
  • Faults - SS, DS, Thrust, etc.
  • iconInfo
  • General Audience

Who Dunit? and the Law of Superposition (PDF) — solve a crime, and then use those same skills to understand the Law of Superposition (older layers of the earth on bottom) with a fun WhoDunit? investigation and then use your skills to solve a geological mystery

USGS
  • Trenching
  • Paleoseismology
  • Lessons online
  • Geology
  • Education resources
  • Earth structure
  • iconLesson Plans
  • iconGraphics
  • Elementary school