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Barnett- Earthquakes

Barnett - Earthquakes

QuestionAnswer
focus point within Earth where the earthquake starts
epicenter location on the surface directly above the focus
fault fractures in the Earth where movement has occurred
aftershock movement that follows a major earthquake
seismograph instrument that records earthquake waves
surface waves seismic waves that travel along Earth's outer layer
body waves waves that travel through Earth's interior; include primary and secondary waves
primary wave fastest body wave; compressional
secondary wave slower than a primary wave; move particles perpendicular to the direction of wave
moment magnitude measurement for earthquakes used by scientists; estimates the energy released by earthquakes
Richter Scale magnitude scale based on the amplitude of the largest seismic wave; used in most news reports
tsunami Japanese word for seismic sea wave
intensity measure of damage to the surface and effects on humans
three number of seismic stations required to locate an epicenter
foreshocks small earthquakes that preceed a major earthquake
Created by: ebarnett
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