Blue+Group

=Click on our names to see what we've been doing in the lab!= =Chris F.= =Adan= =Norrice= =Justin= =Charles=

=What is an earthquake?= An earth quake is where the tectonic plates move away, come together, or scrape past each other and cause a seismic shock that could go miles and miles. It could do a little rumble, or it could rip a whole in the earth. The different waves it puts off are p waves or primary waves witch are the fastest of the three waves and the first ones detected and are like sound waves they expand and compress air and solid rock. then there are s waves or secondary waves and they are the ones that cut through solid rock. surface waves are the third and the slowest type of wave, but they are the most dangerous and can knock buildings off there foundations.earthquakes are measured by an instrument called a seismograph and the seismogram shows us how big the waves where and how long they lasted. by:charles

=How do scientists measure earthquakes?= They use seismogram to recor the earthqukes and they use seismigrahs so they see how big the earqukes is

=What are seismic waves?=

=Where are many of the Earth’s earthquakes happening?= Most of the earthquaks happen at north and south America, Asturla, Africa, Philippines, India, Cribbean, and ect. The reasen earthquakes hit these areas is because it is most likley that these places is on moving plats and when those plats move it causes earthquakes. The destruction of earthquakes dikppends on how strong the magnitude is. Earthquakes are put into four sectionc sections the power of a leavel one-three is like a truck passing by the

=What are scientists doing to try to predict earthquakes?=