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How many giant eruptions have occurred in the Yellowstone National Park region and how large were they?
How much do landslides cost in terms of monetary losses?
What is hydraulic fracturing?
Where does the USGS monitor stream water quality in real time? How can I see these sites on a map and get to the data?
Why is the ocean salty?
How do we know the climate is changing?
How hot is a Hawaiian volcano?
Can you predict earthquakes?
Is there water under the ground?
Do iceworms exist?
USGS Spotlight Questions