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15 Cards in this Set
- Front
- Back
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Earthquakes |
Produce 3 types of waves with different behaviors as they travel through different materials |
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P Waves (primary waves) |
longitudinal (push and pull back and forth motion) fastest, move through solid and liquid, |
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S Waves (secondary waves) |
transverse (move at right angles to primary waves) slower, can move only through solid |
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surface waves |
form when P and S waves reach the surface cause the ground to shake making rock sway side to side and roll like an ocean wave |
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epicenter |
point on Earth's surface directly above where the energy is released in an earthquake; energy that reaches the surface here is greatest then spreads outwards in seismic waves. |
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seismograph |
measures and records seismic waves |
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seismogram |
vibration recorded looks like jagged lines on paperal |
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distance between the recording seismograph station and earthquake center |
measuring the time between the arrival of the P (faster) and S (slower) waves determines |
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triangulation |
plotting circles on a map from 3 seismograph stations, finding where they intersect thus locating the epicenter |
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San Andreas Fault, Calf |
transform boundary |
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Himalayan MTS |
convergent continent to continents |
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Andes MTs South America |
Convergent s contintent and ocean plate subduction |
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Mid Atlantic Ridge |
Divergent oceanic plate boundary sea floor spreading |
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Ring of Fire |
area in Pacific ocean where volcanoes common |
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Great Rift Valley |
divergent continent away from continent |
