Locating Plate Boundaries of the Pacific Rim - PowerPoint PPT Presentation

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Locating Plate Boundaries of the Pacific Rim

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Around the Ring of Fire Locating Plate Boundaries of the Pacific Rim Pacific Northwest Seismic Data This is a map of seismic activity of the Pacific Northwest Each ... – PowerPoint PPT presentation

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Title: Locating Plate Boundaries of the Pacific Rim


1
Around the Ring of Fire
  • Locating Plate Boundaries of the Pacific Rim

2
Pacific Northwest Seismic Data
This is a map of seismic activity of the Pacific
Northwest Each yellow (35-70 km deep) and orange
(less than 35 km deep) dot represents an
earthquake What pattern do you see? What does
this pattern mean? Map generated using the U.S.
Geological Survey. Earthquake Hazards Program
Earthquake Center
3
Southeast Asia Seismic Data
This is a map of seismic activity of Southeast
Asia Each yellow (35-70 km deep) and orange (less
than 35 km deep) dot represents an
earthquake What pattern do you see? What does
this pattern mean? Map generated using the U.S.
Geological Survey. Earthquake Hazards Program
Earthquake Center
4
Pacific Rim Seismic Data
This is a map of seismic activity of the Pacific
Rim Each yellow (35-70 km deep) and orange (less
than 35 km deep) dot represents an earthquake Do
you see any patterns? What do these patterns
tell you? Map generated using the U.S.
Geological Survey. Earthquake Hazards Program
Earthquake Center
5
Plates of the Pacific Rim
6
Analyze your map
  • How many plates underlie of the Pacific Ocean
    also known as the Ring of Fire?
  • Are all plates the same size?
  • How many plates interact near Washington?
  • How many plates interact near Japan?
  • Explain how earthquakes can be used to infer
    plate boundaries.

7
Ring of Fire
  • Where are the majority of volcanoes found in the
    Pacific Rim? (Are they found in the middle of the
    plates or on the edges?)
  • Are volcanoes found everywhere earthquakes are
    found?
  • Map from U. S. Geological Survey.
    http//vulcan.wr.usgs.gov/Glossary/PlateTectonics/
    Maps/map_plate_tectonics_world.html
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