EarthSci 6- Volcanoes
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EarthSci 6- Volcanoes

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    EarthSci 6- Volcanoes EarthSci 6- Volcanoes Presentation Transcript

    • Focus, Epicenter, and Fault
    • Elastic Rebound Hypothesis
    • Seismograph
    • Earth’s Interior Showing P and S Wave Paths
    • Seismogram
    • Measuring EarthquakesLocating an Earthquake Earthquake Distance • The epicenter is located using the difference in the arrival times between P and S wave recordings, which are related to distance. Earthquake Direction • Travel-time graphs from three or more seismographs can be used to find the exact location of an earthquake epicenter. Earthquake Zones • About 95 percent of the major earthquakes occur in a few narrow zones.
    • Locating an Earthquake
    • Location You Found Actual Location