Frequently Asked Questions

NASA composite of planets - JPL

Credit: NASA

“In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.”

– Galileo Galilei, Italian astronomer, physicist, and mathematician (1564–1642)



  • What would an earthquake of Magnitude 10 on the Richter scale feel like?

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  • How would a megathrust earthquake on the Cascadia Subduction Zone affect the San Francisco Bay Area?

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  • Is the frequency of large earthquakes increasing and does it signal a trend or epidemic?

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