Only USGS Links

Link
Organization	Topics	Content Types	Levels
100% Chance of an Earthquake — Earthquake statistics.
USGS	Statistics Prediction Basics	Info	Middle School High School General Audience College
2020-2021 Alaska Peninsual Earthquake Sequence — An ArcGIS geonarrative Storymap describing the three earthquakes along the subduction zone off the south coast of Alaska in 2020 and 2021.
USGS	Faults & Fault Types Plate Tectonics	Graphics Interactive Info	Middle School High School College General Audience
55-Story Tall Building Before and After Earthquake Retrofit — Science for Everyone article
USGS	Engineering, Earthquake Research	Info	General Audience
7 Steps to an Earthquake Resilient Business (PDF) — How to prepare your business for an earthquake
USGS, SCEC & many other organizations	Preparedness & Response	Info	General Audience
A Possible Cause of Earthquakes in the Continental Interior — Plain-language summary of a 2018 research paper.
USGS	Forces Hazards Maps Plate Tectonics Research	Info	General Audience
Animals & Earthquake Prediction — Can animals predict earthquakes? Can they sense shaking that humans can't. What are the facts about animals and earthquakes?
USGS	Prediction Myths Earthquake Facts	Info	High School General Audience
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
Auroras and Earthquakes: Strange Companions — A Science for Everyone article: In a win-win situation for both seismologists and space physicists, a cheap magnetometer at a seismic station can result in better seismic data for earthquakes and also more geomagnetic data in real time for monitoring space weather.
USGS	Seismographs, Instruments	Info	High School College General Audience
Back to the Future on the San Andreas Fault — What does the science say? Where does the information come from? And what does it mean? Investigating past earthquakes to inform the future.
USGS	Geology Hazards Paleoseismology Research San Andreas Fault Trenching	Info	College General Audience High 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	Info	Middle School High School College
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	Info	College General Audience High School Middle School
Chile M7.0 January 12, 2010 and M8.8 February 27, 2010 Educational Slides — Details on the rupture of the two earthquakes, the shaking distribution, aftershock zone, estimated fatality numbers, and comparisons between the two.
USGS	Deaths from Earthquakes Education Resources Effects, Earthquake Intensity Modeling Plate Tectonics Shaking	Graphics Info	College General Audience High School
Collection of 3D Geometries for Global Subduction Zones — A plain language article about subduction zone models and how they help us understand large earthquakes.
USGS	Plate Tectonics Research	Info	College General Audience High School
Cool Earthquake Facts — fascinating earthquake facts
USGS	Basics Earthquake Facts	Info	Middle School High School General Audience Elementary school College
Coquimbo, Chile M8.3 Educational Slides — Educational slides for the M8.3 Coquimbo, Chile M8.3 earthquake.
USGS	Plate Tectonics Historic Earthquakes Education Resources	Info Graphics	High School College
Could the M7.1 Ridgecrest, CA Earthquake Sequence Trigger a Large Earthquake Nearby? — Two of the first questions that come to mind for anyone who just felt an earthquake are, ?Will there be another one?? and ?Will it be larger??.
USGS	Foreshocks Triggering of Earthquakes	Info	College General Audience High School
Creep Evidence of Active Faulting — Information about creep on faults, and specifically the Hayward fault.
USGS	Plate Tectonics Crustal Deformation Surface Features-Faults	Info	High School General Audience
Darfield, New Zealand Earthquake (09/03/2010) and its Aftershocks, Including the 02/21/2011 Christchurch Event Educational Slides — Educational slideset for the 09/03/2010 Darfield, New Zealand Earthquake and its Aftershocks, Including the 02/21/2011 Christchurch Event.
USGS	Education Resources Intensity Shaking Societal Effects	Graphics Info	High School College
Deciphering Nature's Seismograph: How Sediments Record Past Earthquakes and Inform Future Hazard Assessments — An ArcGIS geo-narrative storymap that describes how scientists can learn about the approximate time and magnitude of past earthquakes by looking at how they are "recorded" in the sediments under the surface of the Earth.
USGS	Maps Earth Structure Trenching Paleoseismology	Graphics Interactive Info	General Audience College Middle School High School
Determining the Depth of an Earthquake — brief discussion on depths of earthquakes
USGS	Locating Earthquakes	Info	Middle School High School General Audience College
Digging Into the Past on the Teton Fault — Follow the daily activities of a team of geologists and paleoseismologists as they dig a trench and collect data on the Teton Fault. (from a fieldwork blog September 15-21, 2017)
USGS	Paleoseismology Geology Trenching	Info Graphics	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	Lesson Plans Interactive Graphics	High School College
Earthquake "Top 10" Lists — 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	Info	College General Audience High School Middle School
Earthquake Booms, Seneca Guns, and Other Sounds — An examination of strange and unexplained sounds that are sometimes heard accompanying earthquakes.
USGS	Effects, Earthquake	Info	College General Audience High School
Earthquake Early Warning- Fine-Tuning for Best Alerts — The goal of an earthquake early warning (EEW) system is to provide an alert to people and automatic systems after an earthquake begins but before the shaking reaches their location. As the USGS and its partners are developing an EEW system, called ShakeAlert®, for the West Coast, the benefits, costs, capabilities, and limitations are being investigated. Two recent studies explored the timeliness and accuracy of alerts.
USGS	Preparedness & Response Shaking Societal Effects	Info	College General Audience High School
Earthquake Facts & Earthquake Fantasy — Companion to "Earthquakes, Megaquakes, and the Movies"
USGS	Societal Effects Effects, Earthquake Myths Earthquake Facts	Info Graphics	General Audience High School Middle School
Earthquake Magnitude, Energy Release, and Shaking Intensity — How the size of an earthquake is measured. The differences and relationships between magnitude, energy, and fault size is discussed and shown with images.
USGS	Shaking Magnitudes Intensity	Graphics Info	College 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 & Fault Types Hazards Paleoseismology San Andreas Fault Seismic Waves Trenching	Info	Middle School High School General Audience
Earthquake Science Timeline — A timeline showing the evolution of earthquake science and seismometers through the ages to present.
USGS	History-Earthquakes, Seismology Seismographs, Instruments	Info	General Audience College
Earthquakes — general overview of earthquakes, online USGS general interest publication
USGS	Effects, Earthquake Basics History-Earthquakes, Seismology Prediction Seismicity	Info Graphics	Middle School High School General Audience College
Earthquakes 101 "Slideshow" (PDF) — PDF format of a complete PowerPoint show for the basics
USGS	Photos, Earthquake Effects, Earthquake Earth Structure Damage from Earthquakes Basics Surface Features-Faults Faults & Fault Types Historic Earthquakes History-Earthquakes, Seismology Locating Earthquakes Maps Plate Tectonics Seismic Waves	Graphics	Middle School High School General Audience College
Earthquakes, MegaQuakes, and the Movies — discussion about facts versus fantasies
USGS	Societal Effects Shaking San Andreas Fault Prediction Plate Tectonics Myths Magnitudes Forces Faults & Fault Types Earthquake Facts Effects, Earthquake Damage from Earthquakes	Info	Middle School High School General Audience
Echando Raices en Tierra de Terremotos — Este manual provee informaciÃ³n sobre por quÃ© nos deben preocupar los terremotos en el Sur de California, quÃ© debemos hacer para estar seguros y reducir el daÃ±o, y tambiÃ©n quÃ© debemos saber de lo bÃ¡sico sobre terremotos.
USGS & many other organizations	Basics Books Earthquake Facts Effects, Earthquake Hazards Locating Earthquakes Magnitudes Maps Preparedness & Response	Graphics Info	General Audience
Focal Mechanisms — Basic explanation for what a focal mechanism is, and how to interpret them.
USGS	Faults & Fault Types Forces	Info	General Audience
Geologic Cracks Record Earthquakes on the Reelfoot Fault in Central U.S. — New high-resolution lidar data reveals cracks produced from strong shaking in past earthquakes in the New Madrid seismic zone.
USGS	New Madrid Seismic Zone Paleoseismology Research Surface Features-Faults	Info	College General Audience High School
Geology Detectives (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 Geology Detectives investigation, and then use your skills to solve a geological mystery.
USGS	Trenching Paleoseismology Lessons Online Geology Education Resources Earth Structure	Lesson Plans Graphics	Elementary school
Ground Shaking Simulations — Simulations (videos) from computer models of earthquakes showing the resulting ground shaking.
USGS	Education Resources Historic Earthquakes Modeling Seismic Waves Shaking Intensity	Lesson Plans Graphics Info	College General Audience High School
Ground-Truthing After the M4.0 Earthquake in Southern Maine, October 16, 2012 — Old-fashioned interviews are compared to Did You Feel It? responses for this earthquake.
USGS	Intensity Research	Info	College General Audience High School
Groundwater Effects from Earthquakes — A description of the potential effects of earthquakes on groundwater and wells.
USGS	Effects, Earthquake Societal Effects	Info	General Audience
Hayward Fault Field Guide — Interactive story map with 62 field trip stops for exploring the Hayward Fault in the East San Francisco Bay Area of California.
USGS	Geology Surface Features-Faults Field Trips-Virtual & Real	Interactive Info	High School College 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	Info	General Audience College
How Big and How Frequent Are Earthquakes on the Wasatch Fault? — Paleoseismology along the Wasatch Fault in Utah is helping to estimate the shaking risk to nearby towns.
USGS	Paleoseismology Research	Info	College General Audience High School
How Big Was That Earthquake? — Discussion of earthquake magnitudes from the USGS Volcano Hazards Program.
USGS	Magnitudes Intensity	Info	High School College General Audience
How Seismic Waves Affect Different Size Buildings — Houses and short buildings shake differently than tall buildings.
USGS	Engineering, Earthquake Seismic Waves Shaking	Info	General Audience Elementary school High School Middle School
Improving Earthquake Monitoring with Deep Learning — A Science for Everyone article: Can a deep-learning approach perform better than NEIC?s traditional methods to get more accurate earthquake locations and magnitudes? The NEIC monitoring system is a perfect candidate for deep learning because it processes large amounts of data.
USGS	Magnitudes Intensity Locating Earthquakes Research	Graphics Info	Elementary school Middle School High School College General Audience
Intermountain West, U.S., 2020 Earthquakes — An interactive geonarrative (Esri story map) about the four Intermountain West earthquakes. Learn more about these quakes and the historic earthquakes in this part of the western U.S. This immersive experience (best viewed on a computer) includes maps, photos from the field and links to journal papers, earthquake event pages, data and more.
USGS	Geology Crustal Deformation Surface Features-Faults Effects, Earthquake Photos, Earthquake Maps Hazards Research	Graphics Interactive Info	Middle School High School College General Audience
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	Lesson Plans	Middle School High School Elementary school
Liquefaction and Sea-Level Rise — An ArcGIS geonarrative storymap explaining the impacts of sea-level rise on liquefaction severity around the San Francisco Bay Area, California for the magnitude 7.0 ?HayWired? earthquake scenario along the Hayward Fault.
USGS	Preparedness & Response Effects, Earthquake	Graphics Interactive Info	Middle School High School College General Audience
Listening to Earthquakes — music and earthquakes have something in common!
USGS	Seismic Waves	Interactive	Middle School High School General Audience Elementary school College
Listening to the Earth at the South Pole — A Science for Everyone article: If you want to listen to the softest whispers of the Earth, the South Pole is where you want to be. Seismic station, QSPA has been allowing us to eavesdrop on the Earth for over six decades, and it may soon gain the equivalent of hearing aids.
USGS	Seismographs, Instruments	Info	High School College General Audience
M7.8 Nepal Earthquake, 2015 - A Small Push to Mt. Everest — A large shallow earthquake moves Mt. Everest 3 cm southwest.
USGS	Research Plate Tectonics Forces Faults & Fault Types Effects, Earthquake Crustal Deformation	Info	High School General Audience College
Magnitude versus Intensity Lesson (PDF) — classroom lesson to teach the difference between earthquake magnitude and earthquake intensities (8.3MB PDF)
USGS	Intensity Education Resources Lessons Online Magnitudes	Lesson Plans Graphics	Middle School High School
Modified Mercalli Intensity Scale, The — A description of the Modified Mercalli Intensity Scale.
USGS	Intensity	Info	General Audience
Nepal Earthquake Sequence Educational Slides — (17MB PDF)
USGS	Plate Tectonics Photos, Earthquake Effects, Earthquake Damage from Earthquakes Societal Effects	Graphics Info	College High School
New Madrid Seismic Zone — A collection of information about the region, the historical seismicity, and the hazards.
USGS	Surface Features-Faults Paleoseismology New Madrid Seismic Zone Historic Earthquakes Hazards	Info	Middle School High School General Audience
New Methods for Dating and Sequencing Ancient Earthquakes — A plain-language summary of new paleoseismology methods for studying and dating past earthquakes from trench data.
USGS	Paleoseismology	Info	College General Audience High 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	Graphics Info	General Audience College High School
Paleoseismology, Introduction to — What is paleoseismology? How does it work?
USGS	Basics Paleoseismology	Info	College General Audience High School
Plate Tectonics & Our National Parks — excellent presentation with vivid graphics
USGS & U.S. National Park Service	Plate Tectonics Earth Structure	Graphics Info Lesson Plans	Middle School High School General Audience Elementary school College
Preserving Historic Earthquake Records and Photos of the Instruments that Recorded Them — A project to scan a small selection of the film chips of historical earthquake recordings to digital files was started in 1996. In addition to archiving historic data from the early years, the USGS has also worked to archive photos and descriptions of early seismometers.
USGS	Historic Earthquakes History-Earthquakes, Seismology Photos, Earthquake	Info	College General Audience High School
Protecting Your Family from Earthquakes — in English, Spanish, Chinese, Vietnamese, and Korean
USGS & many other organizations	Preparedness & Response	Info	General Audience
Putting Down Roots in Earthquake Country — Earthquakes and preparedeness for everyone in California (regional booklets available), Utah, Central U.S., Nevada, Oregon, and Alaska
USGS	Preparedness & Response New Madrid Seismic Zone Maps Magnitudes Locating Earthquakes Hazards Faults & Fault Types Effects, Earthquake Earthquake Facts Books Basics	Info Graphics	General Audience
Recommended Reading about Earthquakes for Kids and Adults — list of books
USGS	Books Basics	Info	Middle School High School General Audience Elementary school
San Andreas Fault, The — overview of the San Andreas Fault, online USGS general interest publication
USGS	Basics Faults & Fault Types Historic Earthquakes History-Earthquakes, Seismology San Andreas Fault	Info Graphics	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	Lesson Plans	Elementary school Middle School
Science Fair Project Ideas — specific projects with directions and ideas
USGS	Education Resources Basics	Info Graphics	Middle School High School Elementary school
Science of Earthquakes, The — brief and basic earthquake science concepts
USGS	Basics	Info	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 & Fault Types Education Resources Earth Structure Plate Tectonics	Lesson Plans	Middle School
Seismic Seiches — Description and history of seismic seiches.
USGS	Seismic Seiches	Info	General Audience
Seismicity of the Earth 1900?2018 Map/Poster — Poster-sized map illustrating 119 years of global seismicity in the context of global plate tectonics and the Earth?s physiography. Primarily designed for use by earth scientists, engineers, and educators, this map provides a comprehensive overview of strong (magnitude [M] 5.5 and larger) earthquakes since 1900.
USGS	Maps Plate Tectonics Seismicity Education Resources Historic Earthquakes Basics Surface Features-Faults	Graphics Info	College Elementary school General Audience High School Middle School
Seismographs: Keeping Track of Earthquakes — brief description on how seismographs work to locate earthquakes
USGS	Seismic Waves Locating Earthquakes Seismographs, Instruments	Info Graphics	Middle School High School General Audience College
Seismology in the City — How seismologists can use noise to see under the ground.
USGS	Seismic Waves Site Response Research	Info	College General Audience High School
Severity of an Earthquake, The — measuring earthquakes, online USGS general interest publication
USGS	Magnitudes Intensity Hazards	Graphics Info	Middle School High School General Audience College
Shaking in the Atwood Building in Anchorage, Alaska — This video presents a visualization of how the Atwood Building in Anchorage, Alaska, shook during the M7.1 January 24, 2016, Iniskin, Alaska, earthquake. The building was instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking. Such data is useful to make decisions for improving the building's performance.
USGS	Shaking Seismographs, Instruments Engineering, Earthquake Effects, Earthquake	Graphics	High School General Audience Elementary school College Middle School
Shaking of Frontier Building - Anchorage, Alaska, During Mw7.1 Earthquake, January 24, 2016 — This video presents a visualization of shaking that was recorded in the Frontier Building in Anchorage, Alaska, during the Mw7.1 earthquake, January 24, 2016, Iniskin, Alaska.
USGS	Shaking Effects, Earthquake Seismographs, Instruments Engineering, Earthquake	Graphics	Elementary school Middle School High School College General Audience
Sonic Booms — How Can You Tell the Difference Between a Sonic Boom and an Earthquake on a Seismogram? Some Interesting Facts About Sonic Booms.
USGS	Earthquake Facts Seismic Waves	Info	General Audience Middle School
Southern California Earthquakes, Faults, Photos & Rupture Movies — all things "earthquake" in southern California
Southern California Earthquake Center (SCEC) & USGS	Faults & Fault Types Photos, Earthquake	Graphics Info	High School General Audience College Middle School
Staying Safe Where the Earth Shakes — A booklet that includes the "The Seven Steps to Earthquake Safety" - basic guidelines for what to do before, during, and after a damaging earthquake.
USGS	Preparedness & Response Effects, Earthquake Books Basics	Info Graphics	General Audience
Table-Top Earthquakes — USGS Open-File Report 98-767 (online)
USGS	Education Resources Faults & Fault Types	Lesson Plans	High School College
The "Snow Plow Theory" of Early-Arriving Tsunamis — What is a splay fault, and how can they affect tsunamis?
USGS	Geology Historic Earthquakes Plate Tectonics Research Tsunamis	Info	College General Audience High School
The 2023 Kahramanmara?, Turkey, Earthquake Sequence — An interactive geonarrative that explains the tectonic setting of Turkey, historical seismicity of Turkey from 1900, details on both the M 7.8 and M 7.5 earthquake sequences, kinematics of the earthquake rupture, remote sensing observations that show displacements across the active faults.
USGS	Plate Tectonics	Interactive Graphics	General Audience College High School
The 2023 National Seismic Hazard Model ? What's Shaking? — A Science for Everyone article: No one can predict earthquakes. But existing faults and past earthquakes give us information about future earthquakes, and geology tells us how the ground shakes during an earthquake.
USGS	Research Hazards	Info	General Audience College High School
The Blind Zone of Earthquake Early Warning — A Science for Everyone article: One USGS scientist has sorted through the challenges, the claims, and the data to determine what the possibilities and limitations really are for EEW, and the results may surprise you.
USGS	Preparedness & Response Societal Effects Education Resources	Info	High School College General Audience
The Early History of Seismometry (to 1900) — A walk through the evolution of earthquake monitoring instruments.
USGS	Seismographs, Instruments	Info	College General Audience
The HayWired Scenario: An Urban Earthquake in a Connected World — An ArcGIS geo-narrative storymap with compelling images showing the effects and consequences possible in the next large earthquake on the Hayward Fault in the San Francisco Bay Area.
USGS	Societal Effects Shaking Seismic Waves Preparedness & Response Photos, Earthquake Modeling Maps Intensity Historic Earthquakes Hazards Field Trips-Virtual & Real Faults & Fault Types Effects, Earthquake Damage from Earthquakes Basics	Interactive Info Graphics	Middle School High School General Audience Elementary school College
The Parkfield, California Earthquake Experiment — Information about past earthquakes and current monitoring efforts.
USGS	Shaking Seismicity San Andreas Fault Prediction Parkfield Historic Earthquakes	Info Graphics	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	Info Graphics	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	Info	General Audience
Today in Earthquake History — what happened today in earthquake history
USGS	History-Earthquakes, Seismology Historic Earthquakes Earthquake Facts	Info	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.
USGS	Effects, Earthquake Faults & Fault Types Historic Earthquakes Intensity Plate Tectonics Tsunamis	Graphics Info	College High School
Travel Time Curves — travel time graph for seismic waves
USGS	Seismic Waves	Graphics Info	College
Try It Yourself Calculator — How much bigger is a magnitude 8.7 earthquake than a magnitude 5.8 earthquake?
USGS	Magnitudes	Info Fun & Games Interactive	College General Audience High School Middle School
Using Distant Seismometers to Monitor and Analyze Volcanic Eruptions — Science for Everyone article
USGS	Locating Earthquakes Seismographs, Instruments Research Hazards	Graphics Info	Middle School High School College General Audience
Volcanic and seismic hazards on the Island of Hawaii — summary of earthquake hazards in Hawaii
USGS	Effects, Earthquake Photos, Earthquake Historic Earthquakes History-Earthquakes, Seismology	Info	Middle School High School General Audience
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 & Fault Types	Info Graphics	Middle School High School General Audience College
Washington DC Stone and Brick Buildings Vulnerable to Distant Quakes — Science for Everyone article
USGS	Damage from Earthquakes Effects, Earthquake Engineering, Earthquake Research Shaking	Info	General Audience
What if the ShakeAlert Earthquake Early Warning System Had Been Operating During the M6.9 1989 Loma Prieta Earthquake? — How will ShakeAlert® likely perform now on a large earthquake impacting a major urban area? How much warning will you get? To answer this, let?s do a thought experiment...
USGS	Preparedness & Response Shaking Societal Effects	Info	College General Audience High School
What to Expect in a Big Urban Earthquake — An ArcGIS geo-narrative storymap that describes what can be expected if there is a large earthquake in a populated urban area.
USGS	Societal Effects Shaking Preparedness & Response Intensity Hazards Engineering, Earthquake Effects, Earthquake Damage from Earthquakes	Interactive Info Graphics	Middle School High School General Audience College