Ambient Seismic Noise:What we can learn fromwhat we can't feel

Ambient Seismic Noise:What we can learn fromwhat we can't feel

Ambient Seismic Noise: What we can learn from what we cant feel Celeste Labedz Massachusetts Institute of Technology Incorporated Research Institutions for Seismology Summer Internship 2014

What can ambient seismic noise give us? Clues about the inside of the earth A telescope for looking down Earths structure Earths history Earths hazards wikipedia.o

rg geo.arizona.edu What does seismic even mean? Earthquakes! Movement of waves through the earth Big waves

Little waves Ambient seismic noise How do we get ambient seismic noise? Seismometers LOTS of seismometers

usarray.org How do we turn ambient seismic noise into something we can use? Correlation between stations wikipedia.o rg

Analyzing the correlations A plot of correlations: How does seeing waves let us see inside of the earth? Seismic waves bend and bounce Different paths Different times

aeic.alaska.edu The Big Idea: Look at the arrival times of seismic waves Figure out the paths they took Turn the paths into a model of the inner structure of the earth

Use the model to observe layers, subducted plates, hazard zones, and more

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