Weekly Blog 9/28 - 10/5
Summary: This week we learned about earthquakes. Earthquakes: Earthquakes are a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action. What earthquakes can do are.... Cause fires Destroy buildings Kill people Cause tsunamis And much, much more. There are three different types of faults. In the picture (above), you will see that these three types are a reverse fault, a normal fault, and a strike-slip fault. A reverse fault is.... A fault in which the hanging wall has moved upward relative to the footwall. Reverse faults occur where two blocks of rock are forced together by compression. Compare a normal fault. In other words, a reverse fault is when two pieces of rock grind against each other. A normal fault is.... A fault in which the hanging wall has moved downward relative to the footwall. Normal faults occur where two blocks of rocks are pulled apart, as by te