Earthquakes, Volcanoes and Plate Tectonics
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Earthquakes Along The Crustal Plate Boundary327 views
Shows the depths of selected earthquakes along the crustal plate boundary near the west coast of South America. Letters A, B, C, and D are epicenter locations along a west-to-east line at the surface. The relative depth of each earthquake is indicated.
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Tectonic Plates And The Boundaries Between Them332 views
The map shows some tectonic plates and the boundaries between them. Letters A and B are locations on Earth’s surface. The data table shows the depth below Earth’s surface of five earthquakes measured from location A toward location B.
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Washington And Oregon Earthquakes289 views
The plate boundary shown on the map is the source area for high-magnitude earthquakes in Washington and Oregon. Two hazardous zones associated with these earthquakes are also shown.
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Fault In The Sedimentary Rocks290 views
Escarpment (cliff) located in the western United States. The directions for north and south are indicated by arrows. A fault in the sedimentary rocks is shown on the front of the escarpment.
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Crustal Movement319 views
Cross section below shows rock layers that underwent crustal movement during an igneous intrusion in the Cretaceous Period.
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Seismic Waves376 views
Seismic waves traveling from the focus of an earthquake
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Deformed Rock Structure348 views
Deformed rock structure found on Earth’s surface.
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Seismogram447 views
Seismogram below shows the time that an earthquake P-wave arrived at a seismic station in Albany, New York.
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Tectonic Plates503 views
Line AB is drawn across several of Earth’s tectonic plates in the South Atlantic Ocean.
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Three Seismograms546 views
Three seismograms showing the same earthquake as it was recorded at three different seismic stations, A, B, and C.
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