What is an Earthquake Introduction to Earthquakes & Tsunamis Turn on the TV or read the newspapers and almost always there is something devastating happening somewhere as a result of sheer nature's power. Examples of such natural occurrences are hurricanes, tornados, wildfires, volcanic eruptions, flooding, earthquakes and tsunamis. These are usually not caused directly by humans, but their effects live with us for a long time. In this lesson we shall look at one of such natural occurrences...earthquakes! What is an Earthquake? Simply, earthquakes are the rumblings, shaking or rolling of the earth's surface. Earthquakes come in many forms. Foreshocks, Mainshocks and Aftershocks: Sometimes, there are smaller shocks that occur before (foreshock) and after (aftershock) a main earthquake (mainshock). Earthquakes are also called temblors. It is important to understand the earth’s makeup to help understand earthquakes better. The Mantle is semi-molten rock, also called magma.
La cité des mortes : web documentaire sur l'affaire des mortes de ciudad juarez diteur de biens jolis t-shirts How to build earthquake-resistant houses on a tight budget PETER ARONSON: You’re listening to Housing Revolution — a series of interviews with innovators and revolutionaries from around the world who are working to make housing safer, more sustainable and better quality without significantly increasing costs. I’m Peter Aronson. KIM GREEN: And I’m Kim Green. The past few years have been a bad time for earthquakes. KIM: Turkey, Japan, Haiti, Sichuan — to name a few. More than 425 thousand people died in those temblors, and that’s just since 2008. PETER: Our next guest, Dr. DR. PETER: She should know. DR. PETER: How did you get started in all this? DR. PETER: Wow, we really tend to think of earthquake deaths as natural disasters, but you’re saying earthquake deaths, by and large, are a man-made problem. DR. KIM: That’s great. DR. PETER: Can you talk a little bit about what actually happens to a house or residential building in an earthquake? DR. DR. KIM: That’s, like, a really big rubber band. PETER: You’re so literal sometimes! KIM: Out of dice? DR.
Why Was the Destruction So Severe? | Inside Disaster: Haiti Six weeks after the Haiti shock, Chile was struck by an 8.8-magnitude earthquake. It was 500 times more powerful than the Haiti quake, yet killed less than 1% of the Haitian total. In this section, we explore answers to the question: why was the Haiti earthquake so destructive? This Flash piece is 525 x 372. To embed it in your site, copy and paste the following code. <script type="text/javascript"> var file="destruction_slideshow.swf"; var width = 525; var height = 372; </script><script type="text/javascript" src=" Too wide? Click on images below to launch related videos. Building Codes “The poverty in Haiti lends itself to people building where they want, how they can … not everybody’s going to be able to build to the exacting standards that a building code requires.” Unlike in other countries located on or near fault lines, very few of Haiti’s buildings were constructed for earthquake resistance. Construction Materials Learn More
En quête - années 30 Cool Running | The Couch-to-5K ? Running Plan By Josh ClarkPosted Saturday, 1 January, 2011 Couch to 5K ® | Beginning Running First off, you may be asking, "exactly how many miles is a 5K?" You should ease into your 5K training plan gradually. It's easy to get impatient, and you may feel tempted to skip ahead in the program, but hold yourself back. Start Your 5K Training | A Few Minutes Each Week Each session should take about 20 or 30 minutes, three times a week. Be sure to space out these three days throughout the week to give yourself a chance to rest and recover between efforts. Run for time or run for distance There are two ways to follow this Couch to 5K ® training program, to measure your runs by time or by distance. Before setting out, make sure to precede each training session with a five-minute warmup walk or jog. Cool Running’s Couch to 5K ® Program is available for purchase online through iTunes or the Google Play Store. 5K Training Schedule
Earthquake Prediction California, San Francisco, Los Angeles, recent, earthquake, San Diego, Eureka, San Bernardino. Weather Wiz Kids weather information for kids Earthquakes(Earthquakes are not associated with weather, but instead are natural disasters.) What is an earthquake?Earthquakes are the shaking, rolling or sudden shock of the earth’s surface. They are the Earth's natural means of releasing stress. More than a million earthquakes rattle the world each year. The West Coast is most at risk of having an earthquake, but earthquakes can happen in the Midwest and along the East Coast. Click Here to learn more about earthquakes from USGS. What causes an earthquake? Click Here to see an animation of an earthquake. What are plate tectonics? What is a seismograph? Click Here to calculate the strength of earthquakes! Click Here to see an animation of an earthquake and the resulting tsunami. Know the Lingo EPICENTER - The point on the earth's surface directly above the source of the earthquake.SEISMIC WAVES - The energy created by the quake travels in waves from the epicenter, where they are the strongest. Richter Scale Earthquake Safety Tips