161. Welcome To The Lesson Earthquakes-The Rolling Earth . allow you to move through the lesson at your own pace. Click on the Next icon to begin your study of earthquakes!!! Questions Next To VolcanoWorld. http://volcano.und.edu/vwdocs/vwlessons/lessons/Rolling_earth/Rolling_earth1.htm

Welcome to the lesson "Earthquakes-The Rolling Earth". You need to click on the buttons and icons to move through the pages of the lesson. If at any point in this lesson you would like to return to the beginning just click on the "Beginning" button. If at any point in the lesson you would like to go directly to the questions just click on the "Questions" button. This will allow you to move through the lesson at your own pace. Click on the "Next" icon to begin your study of earthquakes!!! Questions Next To VolcanoWorld

162. Www.aercusa.com Offers a variety of survival packs for disasters including earthquakes, floods, fires and general emergencies. http://www.aercusa.com

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163. Click On The Next Button To Learn More About How Earthquakes Are Over one million earthquakes may occur each year on the Earth. Most earthquakes last only seconds, but some large quakes may last minutes. http://volcano.und.edu/vwdocs/vwlessons/lessons/Rolling_earth/Rolling_earth2.htm

An earthquake is a sudden, rapid shaking of the Earth caused by the release of energy stored in rocks. This energy can be built up and stored for many years and then released in seconds or minutes. Many earthquakes are so small that they can not be felt by humans. Some, on the other hand, have caused great destruction and have killed hundreds of thousands of people. The pink lines and dots on the map of the world above indicate the regions of earthquake activity. There are two major regions of earthquake activity. One is the circum-Pacific belt which encircles the Pacific Ocean, and the other is the Alpide belt which slices through Europe and Asia. The circum-Pacific belt includes the West coasts of North America and South America, Japan, and the Phillipines. Over one million earthquakes may occur each year on the Earth. Most earthquakes last only seconds, but some large quakes may last minutes. About 90% of all Earthquakes are produced at plate boundaries where two plates are colliding, spreading apart, or sliding past each other. When these plates move suddenly they release an incredible amount of energy that is changed into wave movement. Earthquake waves resemble sound and water waves in the manor in which they move. It is these waves that roll through the Earth's crust causing buildings to collapse, bridges to snap, mountains to rise, the ground to fall, and in some cases the ground to open up into huge cracks. Click on the "Next" button to learn more about how earthquakes are produced.

164. Schweizerischer Erdbebendienst (SED) - Swiss Seismological Service Latest earthquake information, interactive map, catalogue of Swiss earthquakes, and a feedback forum. http://www.seismo.ethz.ch/

Schweizerischer Erdbebendienst (SED) Swiss Seismological Service SED People Find us Links Feedback ... FRANÇAIS LATEST EARTHQUAKES In den letzten 72 Stunden wurde kein Erdbeben registriert, das in der Schweiz verbreitet verspürt wurde. - Melden Sie ein Erdbeben - Medienmitteilungen EARTHQUAKE LISTS Switzerland Moment Tensors Global SMS Service PRODUCTS Swiss Earthquake Catalogs Swiss Hazard Maps Publications Reports ... Software SED- SECTIONS Seismic Networks Seismotectonics Earthquake Statistics Hazard and Risk ... Verification of Nuclear Explosions INTERNATIONAL ACTIVITIES Data Exchange: AutoDRM CollectWaves DRM QuakeML ... Global Seismic Hazard Assessment Program (GSHAP) SEARCH OUR SED WEB-PAGES www.seismo.ethz.ch WWW Swiss Government Dept. of the Interior Dept. of Earth Sciences Inst. of Geophysics Last Update: 22Nov2004 - Created: 10Apr2002 / uk

165. Information On Earthquakes earthquakes Explains the nature and causes of earthquakes. Describes techniques used to detect, Selected References on earthquakes. Horizontal Bar http://geology.er.usgs.gov/eastern/earthquakes/

Earthquake Frequently Asked Questions EARTHQUAKE FAQs General Interest Publications Paper copies of the following general interest publications can be ordered without charge from: USGS, Information Services Box 25286 Denver, CO 80225 EARTHQUAKES Explains the nature and causes of earthquakes. Describes techniques used to detect, record, measure, and predict seismic disturbances. Paper copy 20 p. Free. THE SAN ANDREAS FAULT Describes the nature, behavior, and earthquake history of this major fault system that extends from northern California to the Gulf of California. Paper copy 16 p. Free. THE SEVERITY OF AN EARTHQUAKE Defines the terms "intensity" and "magnitude" as used in earthquake studies. Explains the Modified Mercalli Intensity Scale and the Richter Magnitude Scale. Paper copy 15 p. Free. USGS Earthquake Program Webserver Selected References on Earthquakes Other Earthquake Information Full-Color Seismicity Maps Includes seismicity maps of Alaska, Southern California, Hawaii, Utah, the United States, and the World. Current Seismicity Information Central U.S. Earthquake History

166. Geoscience Australia Australia's national geological survey. It carries out geoscientific research to encourage increased investment in Australia's minerals and petroleum industries; and to improve the management of natural hazards such as landslides and earthquakes. http://www.ga.gov.au/

About Us Contact Us Media News ... Advanced Search Geoscience Australia Browse a Topic Geomagnetism Satellite Remote Sensing (ACRES) Topographic Mapping ... What's New 31 August 2005 Annual Report on Mineral Resources 29 august 2005 There's Birrindudu on the gravity data 12 August 2005 Where is "Die Happy Creek"? More News News Archive How can we help you? ... back to top Rate this page: Please choose Very poor Poor Average Good Excellent site map

167. Earthquakes In Indiana Article about the history and future of earthquakes in Indiana. http://igs.indiana.edu/geology/earthquakes/eqinindiana/index.cfm

Interactive Maps Interactive Databases ... Bookstore Site Search Who to Contact for Specific Info Calendar Printing Instructions E-Mail Newsletter Jobs Earth Science Issues Indiana Geology Quiz RELATED SITES Geologist Licensure Indiana University IU Geological Sciences U.S. Geological Survey Other State Geological Surveys Earthquakes Earthquakes in Indiana by Jeff Kirby Historic earthquakes Yes! The Hoosier state has trembled in the wake of earth waves generated by powerful earthquakes in the past, and will, no doubt, tremble again in quakes that are yet to come. These pages briefly describe earthquakes in our past, what causes our earthquakes, what is being done to reduce losses that will result from future quakes, and what you should do before, during, and after an earthquake. Contents New Madrid earthquakes of 1811-12 Earthquakes since 1811-12 Prehistoric Indiana earthquakes What causes earthquakes ... Resources for more information New Madrid earthquakes of 1811-12 When the people living in and near the town of New Madrid in what is now southeastern Missouri went to bed on the night of December 15, 1811, they had no way of knowing that during the pre-dawn hours of the following morning they would be jarred from their peaceful slumber by shock waves that rippled through the earth with such force that buildings collapsed, trees toppled, and the Mississippi River changed course. The explosive force that shattered the stillness of that serene setting was one of the most powerful earthquakes ever recorded in North America. During the next two months, the area would be rocked by three more quakes as powerful as the first (one just six hours after the first) and hundreds of smaller ones. The larger quakes shook the earth with enough force to cause church bells to ring in Washington, D.C. They were felt in Indiana and were even felt a thousand miles away in New Hampshire.

168. "LifeKit | Disaster Preparedness And Emergency Products" Individual and group kits of emergency supplies for earthquakes and other disasters, containing FEMA recommended water, food, sanitation, and first aid. http://www.lifekit.com/

Read More LifeSafe Services offers Safety Management Programs, Emergency Oxygen Equipment, Automated External Defibrillators (AEDs) and various other medical supplies. Read More Kits for being prepared for surviving during or after a major catastrophic event such as earthquake, hurricane, blizzard, tornado, flood, act of terror or other event. Read More Kits for being prepared for responding to an emergency event such as personal injury, accident, trauma, rescue, and other injuries. Read More Custom kits built to your specific need and situation. Read More Kits for an active lifestyle including, hiking, cycling, sports, camping, and other activities. Read More Kits for being prepared for dealing with the every day cuts, burns, injuries and illness at home, work, or at play. Read More info@lifekit.com LifeKit, a division of LifeSafe services, is an industry leader in providing innovative and effective disaster preparedness and emergency preparedness products to businesses, schools, individuals, and government agencies. For over 17 years LifeKit has been one of the most respected emergency kit and survival kit providers in the United States. Located in Jacksonville Florida, we have developed an impressive client base of over 5,000 customers in all fifty states and around the world. Some of the most respected organizations in all industries turn to LifeKit for their disaster preparedness and emergency preparedness needs.

169. Faults And Earthquakes The slowest waves but the ones that do the damage in large earthquakes. Seismic Waves Deep earthquakes are measured in terms of their P and S- waves. http://www.uwgb.edu/dutchs/EarthSC202Notes/quakes.htm

Faults and Earthquakes Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay First-time Visitors: Please visit . Use "Back" to return here. Some Important Earthquakes 1755 - Lisbon, Portugal Killed 70,000, Raised Waves in Lakes all over Europe First Scientifically Studied Earthquake 1811-1812 - New Madrid, Missouri Felt over 2/3 of the U.S. Few Casualties 1886 - Charleston, South Carolina Felt All over East Coast, Killed Several Hundred. First Widely-known U.S. Earthquake 1906 - San Francisco Killed 500 (later studies, possibly 2,500) First Revealed Importance of Faults 1923 - Tokyo Killed 140,000 1964 - Alaska Killed about 200 Wrecked Anchorage. Tsunamis on West Coast. 1976 - Tangshan, China Hit an Urban Area of Ten Million People Killed 650,000 Greatest Earthquakes and Volcanic Eruptions What Causes Earthquakes? Most Quakes Occur along Faults (Fractures in Earth's Crust) Elastic Rebound Theory Here we have a landscape with a road, a fence, and a line of trees crossing a fault. As the crust moves, the rocks adjacent to the fault are deformed out of shape (in reality the deformation is spread across many kilometers - if it were this obvious, earthquake prediction would be easy). Eventually the rocks are so stretched out of shape that they cannot bear the stress any longer. The fault slips, and the stage is set for the next cycle of strain buildup and release.

170. Earthquake Image Archives Pictures taken immediately after earthquakes in Japan, Taiwan, the Philippines and Turkey, from 1992 onwards, collected by M.Yoshimine. http://geot.civil.metro-u.ac.jp/archives/eq/

Earthquake Image Archives Japanese 2004 The Mid Niigata Prefecture Earthquake, Niigata, Japan [ 294 photos 2003 Tokachi-oki Earthquake, Hokkaido, Japan [ 748 photos 2003 Miyagiken-Hokubu Earthquakes, Japan [ 528 photos 2000 Tottoriken-Seibu (Tottori) Earthquake, Japan [ 344 photos 1999 Chi-Chi (Ji-Ji) Earthquake, Taiwan [ 528 photos 1995 Hyogoken-Nanbu (Kobe, Hanshin-Awaji) Earthquake, Japan [ 268 photos 1994 Sanriku-Haruka-Oki Earthquake, Japan [ 127 photos 1994 Mindoro Earthquake, Philippines [ 68 photos 1994 Hokkaido Toho-Oki Earthquake, Japan [ 111 photos 1993 Hokkaido Nansei-Oki Earthquake, Japan [ 135 photos 1992 Erzincan Earthquake, Turkey [ 303 photos 2001 Geiyo (Hiroshima, Akinada) Earthquake, Japan [ only TV images Other websites EQIIS Image Database, University of California Geo-Photo Album by Prof. R. W. Boulanger and Prof. J. M. Duncan Photo Gallery for Recent Significant Earthquakes, EQNET Earthquake Photographs, Earthquake Center, Saint Louis University Earthquake Engineering Department, OYO Corporation (in Japanese) kiso-jiban Consultants Co.,Ltd.

171. Maryland Geological Survey: Earthquakes In Maryland Facts about earthquakes in Maryland. This rela tion may not apply to earthquakes in Maryland, if recent events are any indication. http://www.mgs.md.gov/esic/brochures/earthquake.html

Pamphlet Series Earthquakes and Maryland contact: Dale Shelton ( dshelton@mgs.md.gov Maryland's earthquake monitoring network is online. Visit the Seismic Network Pages for more information, and see live seismic displays. You can download a PDF version of this brochure, suitable for printing. Click here to get mdquakes.pdf By James P. Reger INTRODUCTION Earthquakes can be among the most devastating and terrifying of natural hazards. Although floods, tornadoes and hurricanes account for much greater annual loss in the United States, severe earthquakes pose the largest risk in terms of sudden loss of life and property. There are many interrelated factors that determine the extent of loss of property and life from an earthquake. Each of the following should be prefaced with "other factors being equal. . . ." Amount of seismic energy released: The greater the vibrational energy, the greater the chance for destruction. Duration of shaking: This is one of the most important parameters of ground motion for causing damage. Depth of focus, or hypocenter: The shallower the focus (the point of an earthquake's origin within the earth), usually the greater the potential for destructive shock waves reaching the earth's surface. Even stronger events of much greater depth typically produce only moderate shaking at ground level.

172. Recent Earthquakes - Map For Los Angeles Map and detailed information about recent seismic activity from the U. S. Geological Survey. http://quake.usgs.gov/recenteqs/Maps/Los_Angeles.htm

Latest Quake Info General Quake Info Earthquake Research Special Features ... Search You are here: Home Latest Quake Info Real-time Earthquake Maps Map for Los Angeles California-Nevada Earthquakes Index Map for CA-NV Special Regional Maps Long Valley Los Angeles San Francisco Parkfield CA-NV Earthquake Lists Big Earthquakes All Earthquakes About the Maps Frequently Asked Questions (FAQ) Data Sources Data Centers Glossary ... Real-time Shaking Maps Other Maps: Recent earthquakes with fault and topographic information Click on an earthquake on the above map for more information. Did you feel it? - Report an Earthquake ShakeMaps - Southern CA Northern CA Try to reload this page if you do not have the most current map. Maps are updated within 5 minutes of an earthquake and once an hour. Click on an arrow at the edge or corner of above map to go to an adjacent map. Colored lines are known faults and age of slip White lines represent roads. Magnitude = ? for new earthquakes until a magnitude is determined (takes 4-5 minutes). List of Earthquakes on this Map (with Map) Old version of maps without sidebar Homepage ... USGS Earthquake News Releases U.S. Geological Survey, Earthquake Hazards Program URL http://quake.wr.usgs.gov/recenteqs/Maps/Los_Angeles.htm

173. Newton's Apple: Teacher's Guides Where do most earthquakes occur in the world? How do you measure earthquakes and what determines how much damage they will cause? http://www.ktca.org/newtons/12/earthquk.html

@import "http://www.tpt.org/includes/station_tpt.css"; show #1213 Teacher's Guide Index What is an earthquake? Where do most earthquakes occur in the world? How do you measure earthquakes and what determines how much damage they will cause? David probes the causes of earthquakes. Segment Length - 7:59 Contents Vocabulary Resources Main activity Try this Picture it. You're sitting on the sofa watching another fun-packed episode of Newton's Apple when out of nowhere, you hear a dull roar. The room starts to shake, pictures fall off the wall, and for a few seconds it seems you've lost your sense of balance. Suddenly, all is quiet. Was it an explosion? Did a truck crash into your house? Finally, the announcement comes over the televisionyou have just survived an earthquake. Could this really happen to you? If you live in California, it happens fairly often. But what if you live in places like North Dakota, Florida, or New York? Are you safe? Well, don't get too comfortable. Earthquakes can happen in many places, although they are concentrated in certain areas. An earthquake occurs when two parts of Earth's lithosphere slide past, away from, or into each other. According to current theory, Earth's surface is made up of many large slabs of crust called plates, which ride like giant rafts on semifluid rock below. Geologists believe that the plates are driven by large

174. Earthquakes Theme Page Web resources and student activity sheets for online study of earthquakes. http://www.cdli.ca/CITE/earthquakes.htm

Elementary Theme Pages Earthquakes Featured in Oct. /01 Main Theme Pages Student Activity Sheets What Are Earthquakes Continental Drift ... Jim Cornish, Grade Five Teacher, Gander, Newfoundland, Canada. This page was last updated on September 2001. You have made the visit to our Theme Pages!

175. Volcanic Earthquakes earthquakes related to volcanic activity may produce hazards which include The second category of volcanic earthquakes are long period earthquakes which http://www.geo.mtu.edu/volcanoes/hazards/primer/eq.html

Volcanic Earthquakes Earthquakes related to volcanic activity may produce hazards which include ground cracks, ground deformation, and damage to manmade structures. There are two general categories of earthquakes that can occur at a volcano: volcano-tectonic earthquakes and long period earthquakes. Earthquakes produced by stress changes in solid rock due to the injection or withdrawal of magma (molton rock) are called volcano-tectonic earthquakes (Chouet, 1993). These earthquakes can cause land to subside and can produce large ground cracks. These earthquakes can occur as rock is moving to fill in spaces where magma is no longer present. Volcano-tectonic earthquakes don't indicate that the volcano will be erupting but can occur at anytime. The second category of volcanic earthquakes are long period earthquakes which are produced by the injection of magma into surrounding rock. These earthquakes are a result of pressure changes during the unsteady transport of the magma. When magma injection is sustained a lot of earthquakes are produced (Chouet, 1993). This type of activity indicates that a volcano is about to erupt. Scientists use seismographs to record the signal from these earthquakes. This signal is known as volcanic tremor People living near an erupting volcano are very aware of volcanic earthquakes. Their houses will shake and windows rattle from the numerous earthquakes that occur each day before and during a volcanic eruption. Residents in Pompeii felt earthquakes daily before Vesuvius erupted in A.D. 79 but continued to go about their daily routines (Francis, 1993). When Mount Pinatubo in the Philipines erupted in 1991, nerves were rattled as much as windows by volcanic earthquakes.

176. Recent Earthquakes - Map For San Francisco Map and detailed information about recent seismic activity from the U. S. Geological Survey. http://quake.usgs.gov/recenteqs/Maps/San_Francisco.htm

Latest Quake Info General Quake Info Earthquake Research Special Features ... Search You are here: Home Latest Quake Info Real-time Earthquake Maps Map for San Francisco California-Nevada Earthquakes Index Map for CA-NV Special Regional Maps Long Valley Los Angeles San Francisco Parkfield CA-NV Earthquake Lists Big Earthquakes All Earthquakes About the Maps Frequently Asked Questions (FAQ) Data Sources Data Centers Glossary ... Real-time Shaking Maps Other Maps: Recent earthquakes with fault and topographic information Click on an earthquake on the above map for more information. Did you feel it? - Report an Earthquake ShakeMaps - Southern CA Northern CA Try to reload this page if you do not have the most current map. Maps are updated within 5 minutes of an earthquake and once an hour. Click on an arrow at the edge or corner of above map to go to an adjacent map. Colored lines are known faults and age of slip White lines represent roads. Magnitude = ? for new earthquakes until a magnitude is determined (takes 4-5 minutes). List of Earthquakes on this Map (with Map) Old version of maps without sidebar Homepage ... USGS Earthquake News Releases U.S. Geological Survey, Earthquake Hazards Program

177. Mexico - Earthquakes Mexico is one of the most seismologically active regions on earth. The motion of these plates causes earthquakes and volcanic activity. http://countrystudies.us/mexico/49.htm

Earthquakes Mexico Table of Contents Situated atop three of the large tectonic plates that constitute the earth's surface, Mexico is one of the most seismologically active regions on earth. The motion of these plates causes earthquakes and volcanic activity. Areas off Mexico's coastline on the Gulf of California, including the Baja California Peninsula, are riding northwestward on the Pacific plate. Rather than one plate subducting, the Pacific and North American plates grind past each other, creating a slip fault that is the southern extension of the San Andreas fault in California. Motion along this fault in the past pulled Baja California away from the coast, creating the Gulf of California. Continued motion along this fault is the source of earthquakes in western Mexico. Mexico has a long history of destructive earthquakes and volcanic eruptions. In September 1985, an earthquake measuring 8.1 on the Richter scale and centered in the subduction zone off Acapulco killed more than 4,000 people in

178. A Science Odyssey: You Try It: Plate Tectonics A handson exercise about plate tectonics and earthquakes from PBS. Requires Shockwave plug-in http://www.pbs.org/wgbh/aso/tryit/tectonics/

Go directly to Plate Tectonics activity (114K - requires Shockwave Take a hard-boiled egg and crack its shell. Does the egg remind you of anything? The Earth, perhaps? The egg could be seen as a tiny model of the Earth. The thin shell represents the Earth's crust, divided into plates; within the shell is the firm but slippery mantle. Move the pieces of shell around. Notice how the shell buckles in some places and exposes "mantle" in other places. The same thing happens on Earth, but on Earth, this activity results in the formation of mountains, earthquakes, and new ocean floor. Even though the theory of continental drift was proposed in 1912 by Alfred Wegener, the idea of moving continents wasn't generally accepted until the early 1960s. That's when Wegener's theory was resurrected by Harry Hess, Robert Dietz, Fred Vine, and Drummond Matthews. The ensuing theory, known as plate tectonics, has had a major impact on Earth Sciences. It represents a scientific revolution as significant to geology as relativity was to physics. This activity lets you manipulate tectonic plates. Pull the plates apart and push them together and watch what happens to the Earth.

179. Earthquakes In Wyoming Online database of earthquakes in Wyoming allows for searching by date and from map display of quake epicenters. Damaging earthquakes can occur anywhere in http://www.wrds.uwyo.edu/wrds/wsgs/hazards/quakes/quake.html

Earthquakes in Wyoming Epicenters shown in red Click here to access earthquake database and map Information on Yellowstone Lake Bulge Click here to report an earthquake Seismological Characterizations of the 23 Wyoming Counties ... Earthquakes in Wyoming, Information Pamphlet 6 (PDF 1,891kb) The Federal Emergency Management Agency and US Geological Survey have classified Wyoming as having a very high seismic hazard. The map above represents earthquakes of magnitiude 2.5 or intensity III and above that have occured in Wyoming from 1871 to present. As can be seen, historic earthquakes have occurred in every county in Wyoming. Damaging earthquakes can occur anywhere in the state. Magnitude 7.5 events can occur in western Wyoming, magnitude 6.75 events can occur along the northern and southern margins of the Wind River Basin. And magnitude 6.25 to 6.5 events can occur anywhere in the rest of the state. These web pages have been generated for two reasons. The first of these is to increase awareness of earthquakes in Wyoming. The second is to provide citizens with a means to access current earthquake data for the state. The map above shows many historic earthquakes. The Wyoming State Geological Survey (WSGS) and the Water Resources Data System (WRDS) are in the process of generating a searchable database for Wyoming. At the present time, only limited historic data can be retrieved. Presently the database contains records from:

180. Fires...Floods...Riots...Earthquakes... John Carpenter! Ted Elrick interviews the director for the Directors Guild of America Magazine. http://www.dga.org/news/mag_archives/v21-3/carpenter.html

Fires...Floods...Riots...Earthquakes...John Carpenter! Hollywood's Prince of Darkness Destroys LA by Ted Elrick photo by Gregory Schwartz It's nine o'clock on a February evening. The Back to the Future town square on the Universal Studios lot is serving as a different place in a different kind of future. Technically, production notes call it the "Happy Kingdom" sequence. But it could be standing in for Disneyland's Magic Kingdom gone to hell in the year 2013. A gigantic earthquake has turned Los Angeles and environs into an island. The town square, lit eerily by torches and oil drum fires, is covered with graffiti, broken windows and some 400 extras costumed as all manner of anti-social types, from bikers to gangstas. In director John Carpenter's world, this should come as no surprise. Since his 1976 film, Assault on Precinct 13 , the forces of evil have stood united. It's the forces of good who are continually at war with one another over what to do next. In the world of Snake Plissken (actor Kurt Russell), the lead character in Escape from New York who now finds himself having to Escape from LA , the "so-called" forces of good the police and government are sometimes indistinguishable in their methods from the forces of evil.

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