In 1953, one of the worlds most powerful earthquakes destroyed the greek islands of the ionian sea. Formation of earthquakes educational videos watchknowlearn. Selections of up to 5000 events can also be viewed in 3d and freely rotated with the 3d viewer companion tool. To many companies, a disaster recovery plan is useless until a disaster hits them. The movement of plates, which create everything from continents to mountains, are always in motion and this motion causes immense stress on the continents and oceans. Winner of the standing ovation award for best powerpoint templates from presentations magazine.
How earthquakes happen if you would like a printable, nonanimated version of this graphic, click on the following link to open a pdf file and then follow the icon to print that file. Such movements occur along faults, which are thin zones of crushed rock separating blocks of crust. These are smaller earthquakes that happen in the same place as the larger earthquake that follows. Maulana tariq jameel 2016 why earthquakes happen 143islam. This list considers every notable earthquake felt or with its epicenter within mexicos current borders and maritime areas. Learn more all about earthquakes and why they happen. Just before an earthquake hit the greek city of helike in 373 b. These are the largest earthquakes those of greatest magnitude per year since 1999. In this part of the story, the word great means very large. Nepal has suffered four earthquakes of a magnitude greater than 6. Google has many special features to help you find exactly what youre looking for. Earthquakes can happen miles below the surface of the crust, but their energy vibrates up through the crust to the surface. Earthquakes are disturbances in the solid earth that lead to seismic waves rippling away from the disturbance. Theyll tell you why earthquakes happen and what plates, faults, and waves have to do with it all.
Sep 21, 2017 earthquake strikes pakistan 26 december 2015 strongest earthquake of 6. Earthquakes, tsunamis, volcanoes, natural disasters earthquakes. Oct 17, 2007 the science behind trying to predict earthquakes. Please help improve this section by adding citations to reliable sources.
The total value indicates the total number of earthquakes that are shown. Oct 10, 2009 this is an educational video designed for secondary school geography students. Earthquakes can be so small that you can barely feel them or they can be so strong that they topple buildings. Boise, idaho download the ktvb news app up to get push alerts for significant updates. Measured against the size of the country, earthquakes occur very rarely. An earthquake is like earth having a really bad day. Documentary japan earthquake and tsunami of 2011 dailymotion. Iran is one of the most seismically active countries in the world, being crossed by several major faults that cover at least 90% of the country.
Dinosaurs have been extinct for a long, long time, so how is it that we have a pretty good idea of what they looked like and even how they acted we meet the team behind an international dinosaurs exhibit that explains how scientists are able to discover so many details about these prehistoric creatures by the fossils and other evidence they left behind. Download over 73 earthquake royalty free stock video footage, motion backgrounds, and after effects templates and more. An enterprise can invest time, money and manpower on formulating a disaster recovery plan, only for the plan to turn to be useless. Field is rewriting the earthquake hazard plan for california, due out by the end of the year. Apr 18, 2016 the most powerful earthquake to hit ecuador in decades has killed 272 people a toll that will certainly rise, president rafael correa said, as overwhelmed rescuers monday struggled to pull.
The iris earthquake browser ieb is an interactive tool for exploring millions of seismic event epicenters normally earthquakes on a map of the world. Energy builds up underground when plate boundaries push, pull, or rub against each other. Here is the live footage of the terrifying magnitude 7. It is designed as a motivational trailer to be shown in classrooms by earth science and physical science teachers in middle school, high school and college to excite students about the power of earths tectonic crust. Earthquake is a documentary based on this footage shot before and after the disaster. Quakes can be caused by a variety of things, including meteor impacts and volcanic eruptions, and even sometimes manmade events like mine collapses and underground nuclear tests source. Learn about how earthquakes and divergent, convergent and transform boundaries with this fun educational song about tectonic plate boundaries. Earthquake facts how earthquakes work howstuffworks.
Read now download why do earthquakes happen tell me why tell me how download. In this brainpop movie, tim and moby introduce you to the mechanics of earthquakes. Based on earthquakes in the past, we will probably get a magnitude 5 on the richter scale earthquake every 15 to 20 years, said juan lorenzo, geology professor at lsu. Books fall off the shelves and you might even be thrown from your chair. We learned about the three different types of seismic waves, the p and the s waves in particular. This lesson will give you the information you need to understand how and why earthquakes happen, along with a few associated terms.
The baja california peninsula lies near the boundary of the pacific plate and the north american plate, while. The science behind trying to predict earthquakes dailymotion. Last august, i embarked on a crosscountry train trip to explore how games might be used for disaster preparedness. After a while, the stress becomes too much to handle. They occur without warning and can do some serious ground shaking. Disaster recovery plan in 5 easy steps techblogcorner. The information about the locations and sizes of earthquakes are the key things that we need to know in order to allow people to design earthquake proof buildings. Tens of thousands of excellent, educational videos in a huge, intuitive directory. In addition, some definition should be given for the location of an earthquake, since an earthquake does not occur at a point, and the region should be specified in three dimensions, because deep earthquakes may be different in character from shallow earthquakes. Scientists cant tell that an earthquake is a foreshock until the larger. Search the worlds information, including webpages, images, videos and more. Earthquakes are the most deadly of all natural disasters. This video shows seven days worth of earthquakes of magnitude 2. Earthquakes are the result of pressure specifically, pressure caused by extreme stress in the earths crust.
Stock video footage 4k and hd video clips shutterstock. These earthquakes commonly occur across faults, as i mentioned before. Why italy gets so many earthquakes, and how to survive one. We know that earthquakes occur along a variety of depths, and that the deep focus earthquakes tend to occur along subduction zones. Nov 24, 20 this video shows you how earthquakes happen, and what the impact of earthquakes can look like. A free powerpoint ppt presentation displayed as a flash slide show on id. The earthquakes are uptodate, customizable, and quite impressive on a largescreen display with beautiful, highresolution satellite imagery. Pdf download encyclopedia of earthquakes and volcanoes facts on file science library read full ebook. The p waves travel twice as fast as the s waves, but the s waves dont travel through liquids. Shaking of the earth produced by a sudden movement of rock beneath its surface how do earthquakes occur. Jun 01, 2009 how earthquakes happen if you would like a printable, nonanimated version of this graphic, click on the following link to open a pdf file and then follow the icon to print that file. When one block suddenly slips and moves relative to the other along a fault, the energy released creates vibrations called seismic waves that radiate up through the crust to the earths. The iranian plateau is subject to most types of tectonic activity, including active folding, faulting and volcanic eruptions. The iris earthquake channel is a free application that shows earthquakes on high resolution maps, suitable for display in a museum, lobby, visitor center or school setting.
The quake was centered about 50 miles east of khask, iran, but was felt as far away as new dehli, india. In fact, some of them happen some earthquakes happen close to faults. The new version will incorporate the idea that if a. How does earthquake occur with explanation social science 3d animation video in hd duration. Designed for teachers, students, parents, homeschoolers, educators and all lifelong learners. In each city i met with first responders, red cross chapters, disaster management agencies, and community leaders. Imagine that youre sitting in school when the ground begins to shake. Lists of earthquakes cover earthquakes around the world. Earthquakes are known for being deadly natural disasters. Understanding why they happen is a bit more complicated. Earthquakes away from faults caused by movement under plates. Alaska had a more powerful earthquake in 1964 but fewer people died. May 04, 2015 documentary japan earthquake and tsunami of 2011. But most naturally occurring earthquakes are caused by movement of pieces of the.
It also talks about tectonic plates as it show a small example using. Ppt volcanoes, earthquakes powerpoint presentation. Video goes inside the earth to show how an earthquake starts. This is a video which explains earthquakes and also answers some frequently asked questions. Geological survey estimates that, each year, there are as many as 1. They are organized by period, region or country, year, magnitude, cost, fatalities and so on. Because the faults that break during the earthquake are so deep, the seismic wave energy they radiate spreads over a much larger area than in a shallow quake.
The vast majority of them are very small, and many occur in remote areas far from people, so we dont usually even notice them. The earth is composed of an amalgam of textures from a couple different sources. In fact, the national earthquake information center locates about 12,00014,000 earthquakes each year. When plates are running into each other or sliding past each other that is earthquakes normally occur. China had an earthquake in the 1500s that killed more than 800,000 people. Jul 21, 2017 dramatic footage has emerged showing the moment a 6. Why and where earthquakes occur free essay example. The edges of oceanic and continental plates are where earthquakes happen the most. The circumpacific belt, which traces along the edges of the pacific ocean and is where about 80% of all earthquakes occur. In the case of earthquakes with a magnitude of more than 9.
Seismometers record vibrations from a wide assortment of ground motion events. Deep earthquakes occur at depths of 30 to 50 miles 80 to 45 km beneath much of oregon and washington, and at depths of about 25 miles 40 km beneath northwestern california. This hd dramatic video choreographed to powerful music introduces the viewerstudent to earthquakes and tsunamis. Witness the destructive power of earthquakes, from home videos taken during a tremor. Each event type has a distinctive groundmotion signal with unique frequency and amplitudeits own seismic signature. The incredible hulk s01e09 earthquakes happen dailymotion. Unfortunately, natural disasters are out of our control. Pdf download why do earthquakes happen tell me why tell me how download online. Technically, an earthquake is a vibration that travels through the earths crust. These areas experience the most earthquakes due to what lies beneath the surface. Nov 25, 2009 explaining earthquakes kqed quest duration. In his journal, he recounted hordes of mice, birds, snakes and insects fleeing weeks and days in advance of the earthquake that eventually occurred.
Earthquakes can occur far from a plates boundary, but they usually only happen in older and cooler subduction zones, according to a news release about the. Volcanoes and earthquakes inside the volcano dailymotion. Dramatic footage shows moment turkey earthquake struck the sun. Although scientists dont know when exactly earthquakes will occur, they can estimate where theyll happen, and roughly how big theyll be. Earth is covered by plates, when the plates are moved by the heat of the inner earth, they grind against each other along lines called faults. Mar 16, 20 the answer to the question of why exactly do earthquakes happen can be attributed to the plate tectonics. An earthquake also known as a quake, tremor or temblor is the shaking of the surface of the earth resulting from a sudden release of energy in the earths lithosphere that creates seismic waves. Pdf download why do earthquakes happen tell me why tell me how download. Two amateur cameramen happened to be in kefalonia and recorded what they saw on film. The largest and the smallest earthquake magnitudes shown. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that.
An earthquake is ground shaking caused by a sudden movement of rock in the earths crust. The average value indicates the average value of all the earthquakes being show. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. The deadliest documented earthquake in europe was on 28 december 1908, when a 7. Plus, explore over 11 million highquality video and footage clips in every category. According to the british geological survey the earthquake registered a reading of 5.
As a result, earthquakes in iran occur often and are destructive. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to propel objects and people into the air, and wreak destruction across. Download why does it happen earthquakes and volcanoes. This fact sheet illustrates information on the frequency of earthquakes of various magnitudes, along with details on the effects of earthquakes and the equivalent energy release. Earthquake data is updated once an hour on the hour. The energy is sometimes as powerful as thousands of nuclear bombs. Why earthquakes are happening where theyve never happened before. Earthquakes can strike any location at any time, but history shows they occur in the same general patterns year after year, principally in three large zones of the earth the worlds greatest earthquake belt, the circumpacific seismic belt, is found along the rim of the pacific ocean, where about 81 percent of our planets largest earthquakes occur. Earth is an active place and earthquakes are always happening somewhere. Oct 24, 2015 check out my new channels for more compilation videos. Six people were killed, thousands were forced into temporary shelters and many. All videos published with creative commons license. Mexico lies within two seismically active earthquake zones. Ideal as a supplement to a curriculum or for independent study.
1067 618 9 1184 629 513 1155 596 347 699 418 1246 104 423 1385 1504 727 1276 1317 1063 1237 483 16 1268 180 1008 822 935 825