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Chp 6 vocab mpatel
Question | Answer |
---|---|
large section of Earth's crust and rigid upper mantlethat moves around on the asthensphere. | Plate |
when rocks break, they move along surface when they pass their elastic limit and break | Fault |
the vibrations produced by the breaking of the rock | Earthquake |
rock above the fault surface moves downward in relation of rock belowthe fault surface | Normal Fault |
break in rock caused by compressive forces, where rock above the fault surface moves upward relative to the fault surface | Reverse Fault |
rocks on either side of the fault are moving past other without much upward or downward movement. | Strike-Slip Fault |
rhythmic movement that carries energy through matter and space | Wave |
Wave generated by an earthquake | Seismic Wave |
in an earthquake, the point below Earth's surface where energy is releases in the form of seismic wave | Focus |
seismic wavethat moces rock particles back and forth in the same direction trhat that wave travels.` | Primary Wave |
seismic wave that moves rock particles at right angles to the direction of the wave | Secondary Wave |
move rock particles in a backward, rolling motion and a side to side swating mation. | Surface Wave |
the point on Earth's surface directly above the earthquake focus. | Epicenter |
seismic waves from earthquakes are measured with this instrument | Seismograph |
highest point of a wave | Crest |
measure of the energy released during an earthquake | magnitude |
occurs when wet soil acts more like a liquid during an earthquake | liquidfaction |
seismic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore | tsumamis |