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Measuring Earthquakes - 16 of 15
Measuring Earthquakes FAQs - 15 Found
What is a Geoid? Why do they use the geoid, and where does its shape come from?
How are earthquakes recorded? How are earthquakes measured? How is the magnitude of an earthquake determined?
What are UTC and GMT (in reference to the time of an earthquake)?
When was the first instrument that actually recorded an earthquake?
What was the duration of the earthquake? Why don't you report the duration of each earthquake? How does the duration affect the magnitude?
USGS Spotlight Questions