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Cornell geophysicist Katie Keranen traveled to Oklahoma to study the increased occurrences of earthquakes. During her research, she discovered the increase in seismic activity is linked to the disposal of wastewater from fracking.
Runtime: 5 minutes 11 seconds
1964 Quake: The Great Alaska Earthquake
Agate Fossil Beds National Monument
Alibates Flint Quarries National Monument
Animated Life: Pangea
Ask a Scientist: What Do and Don't We Know About Megathrust Earthquakes?
Capulin Volcano National Monument
Career Connections: Hydrologist
Caves Of The National Parks: The Wonder Beneath
Changes on Earth
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