These are notes you should put in your notebook for studying! I will check for them on Thursday before the quiz on FRIDAY (5/9). -Mrs. Loehe
Epicenter- The point of an earthquake on the Earth's surface, directly above the interior, where earthquake energy is released.
Primary (P) Wave- A P wave, or compressional wave, is a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving. (Like a slinky.)
Secondary (S) Wave- An S wave, or shear wave, is a seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving. (Like a wave in a pool.)
Fault- A fault is a fracture along which the blocks of crust on either side have moved relative to one another parallel to the fracture.
Tsunami- A tsunami is a sea wave of local or distant origin that results from large-scale seafloor displacements associated with large earthquakes, major submarine slides, or exploding volcanic islands.
Subduction Zone- The subduction zone is the place where two lithospheric plates come together, one riding over the other. Most volcanoes on land occur parallel to and inland from the boundary between the two plates.
Ring of Fire- The "Ring of Fire", also called the Circum-Pacific belt, is the zone of earthquakes surrounding the Pacific Ocean- about 90% of the world's earthquakes occur there. The next most seismic region (5-6% of earthquakes) is the Alpide belt (extends from Mediterranean region, eastward through Turkey, Iran, and northern India.
