Red+Group

 =Click on our names to see what we've been doing in the lab!= =Candace= =Shakiya= =Oriana= =Victoria= =Mishonda=

=What is an earthquake?= A **__Earthquake__** is the vibration, and sometimes violent Thing on earth. They are made when to plates Underneath the crust is caught together .When They catch together and stay like that pulling and Pulling from each other for many years. And then finally let Go and it releases a whole bunch of energy and It makes us shake above the crust!!!!!! When a earthquake occurs they reason For buildings coming down are surface waves There the slowest wave out of all three of them. There’s p waves there the fastest, and the s waves.

=How do scientists measure earthquakes?= Scientists used a seismogram to measure earthquakes. Seismic waves are measured by seismograph. A seismograph is an instrument that records, measure seismic waves. The seismograph is located between Chicago, Savannah, and Houston the seismograph helps know how far the earthquake goes. There are three different ways to measure earthquakes they are the Mercalli scale, Ricter scale, and the magnitude scale. =What are seismic waves?= By: Victoria Boykin An earthquake generates seismic waves and they can be detected by and instrument called a seismograph. Seismology provides a means to monitor for nuclear explosions used to test and build weapons. This is because buried nuclear explosions create seismic waves and they can be detected by a seismograph. There are other waves besides this one. The other ones are p- waves, s- waves, and surface waves. P- waves are the waves that you will feel first during an earthquake. S- waves is when you might feel a jolt.

=Where are many of the Earth’s earthquakes happening?=

=What are scientists doing to try to predict earthquakes?= W hat Are Scientists Doing to try to predict earthquakes? Seismic waves help with a scientist prediction. When ever an earthquake happens, seismic waves move and a __SEISMOGRAPH__ picks up the waves a pen shakes when this happens. The scientists put the seismograph in a box under ground. In the early days, a seismograph was just a cooper vessel with 8 dragon heads on it on top, there where 8 frogs. By the 1960’s there where over 120 seismographs in over 60 countries. All the seismographs came from the World-Wide Seismographic Station Network. The seismograph was first discovered by E. von Rebluer Patchwitz in 1889.By the end of the 19th century, several scientists from around the world has come up with their version of the seismograph. The seismogram measures earthquakes, the p- waves and s-waves. A pen will move in different directions and all those markings mean some thing, like how much power and time. There is difference between seismographs and seismograms. Seismographs predict and seismograms measure. There is a scale called the Mercalli Scale and it is used with Roman Numerals to see how much damage an earthquake has caused. The Richter Scale is used to find earthquakes magnitude. Scientists can NOT predict earthquakes. All because of the many different ways. Vocabulary Seismologists- a person who studies earthquakes. Seismograph- a device that used to study and predict earthquakes.