A. Part of the Earth that consists of several large and several small tectonic plates.
B. Movement of a fluid due to temperature difference.
C. Supports the Theory of Plate Tectonics.
D. Pulling the edge of some plates towards the center of the Earth.
E. A theory that states the Earth’s surface consists of large moving plates.
1. Plate Tectonics
2. Gravity
3. Lithosphere
4. Sea Floor Spreading
5. Convection Current
E
D
A
C
B
EarthquakesEarthquakes
A shaking of the earth’s crust due to a release of energyThere are three major earthquake zones:
BoundariesBoundariesSubducting:On plate is forced under another
This is a type of
convergent boundary!
Earthquake WavesEarthquake Waves
Arrive first, travel almost twice as fast as S wavesTravel through solids, liquids, gases
Surface WavesSurface WavesSometimes called “L”
wavesTravel through solids onlyResponsible for most
damage due to their intense vibrations
Location of EarthquakesLocation of Earthquakes
The Focus- the breaking point (inside the Earth) where the vibrations originate
Location of EarthquakesLocation of Earthquakes
The Epicenter- the location (on the surface) directly above the Focus
Locating EarthquakesLocating Earthquakes
Seismologists can figure out earthquake locations through trilateration