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Instructional Video

U.s. Geological Survey: Earthquakes: Great Circles

Curated by ACT

An animated illustration explains, in simple terms, the concept of measuring distance using great circles around the Earth.

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Additional Tags
great circle, longitude line, measuring distance, earth circles, earth's geography, u.s. geological survey: great circles, us geological survey, usgs, map terminology
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Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)