12 terms

Science DOS 6 Quiz

Science DOS 6 quiz
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Terms in this set (...)

focus
The point beneath Earth's surface where rock breaks under stress and causes an earthquake, The point beneath Earth's surface where rock breaks under stress and causes an earthquake.
epicenter
the point on the Earth's surface directly above the focus of an earthquake
primary waves
1st wave, P, travels the fastest, back-and-forth waves, move through solids, liquids, and gases
Mercalli Scale
describes the earthquake intensity based on structural and geological damage
Richter Scale
a scale that rates an earthquake's magnitude based on the size of its seismic waves
Seismologist
a type of geologist who studies earthquakes
Tsunami
a huge destructive wave (especially one caused by an earthquake)
Surface waves
are the slowest and largest of the seismic waves and cause most of the destruction during an earthquake
Secondary waves
Transverse wave from an earthquake that arrive slower (second) and cause more shaking side to side.
Creep meter
an instrument that measures horizontal movement along faults using a wire stretched along a fault
Seismograph
An instrument that records earthquake waves.
Seismogram
The record of an earthquake's seismic waves produced by a seismograph.

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