BBy: Madelyn Hultz and Madi Brannon

 There was only one supercontinent called Pangea.  It formed about 300 million years ago.

 The major plates the affect the U.S. are the American Plate, the Juan De Fuca, the Pacific, and sometimes the Caribbean plate.

 There’s a fault line running through California that causes earthquakes to happen.  Florida doesn’t have a fault line running through it.  Our hazard zone is the lowest. (2-4)  It run through the San Andreas fault line.

 The answer is the Shaanxi earthquake that happened in China.  It killed 830,00 people and its magnitude was 8.  This earthquake occurred in 1556.

 The first boundary is the transform boundary. Transform boundaries slip past each other. The slipping doesn’t happen smoothly.  The next kind of boundary is the convergent plate boundary. Convergent boundaries come together along their borders.  The last type of boundary is the divergent boundary. Divergent boundaries pull apart.

 Tsunamis are giant and long waves lengths that are caused by the displacement of water from an earthquake.  Tsunamis travel at about 500 miles per hour.

 The two types of waves are the primary and the secondary waves.  Primary waves go through all three types of matters such as solid, liquid, and gas. Secondary waves only go through solids. That’s how they differ.  The primary wave travels faster than the secondary wave.

 A 7.2 earthquake produces10 times more ground motion than a magnitude 6.2 earthquake.  It releases about 32 times more energy.

 Reflection and refraction seismology can be used in geophysical exploration to locate layers of varying density.  Seismology also provides info on the internal structure anti state of matter on the interior earth.

SScotia Sea had 3 earthquakes. TThey occurred on November 17 th. TThe magnitude was 7.4, 7.7,and 7.8.

 Scientists cant predict earthquakes.  Scientists have tried many different ways but still haven't found a way to predict earthquakes.  Sometimes they can predict a short time increase in probability but nothing specific.

 When an earthquake occurs, it sends waves through the ground at a certain speed.  The waves will eventually ripple out and meters will detect it.