Seismic Waves Terminology Boundaries/ Faults Wildcard

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Presentation transcript:

Seismic Waves Terminology Boundaries/ Faults Wildcard Eleanor M. Savko Seismic Waves Terminology Earthquakes 4/20/2019 Boundaries/ Faults Wildcard 200 200 200 200 200 400 400 400 400 400 600 600 600 600 600 800 800 800 800 800 1000 1000 1000 1000 1000

Area where S waves are NOT detected because they can’t pass through the outer core; opposite the epicenter/focus Eleanor M. Savko 4/20/2019

Eleanor M. Savko 4/20/2019 What is the shadow zone?

Compressional seismic body waves Eleanor M. Savko 4/20/2019 Compressional seismic body waves

What are P (Primary) waves? Eleanor M. Savko 4/20/2019 What are P (Primary) waves?

Seismic body wave whose motion is at right angles to the wave direction. Eleanor M. Savko 4/20/2019

What are S (Secondary) waves? Eleanor M. Savko 4/20/2019 What are S (Secondary) waves?

Another name(s) for surface waves. Eleanor M. Savko 4/20/2019

What are Rayleigh or Love waves? Eleanor M. Savko 4/20/2019 What are Rayleigh or Love waves?

The fastest seismic wave. Eleanor M. Savko 4/20/2019 The fastest seismic wave.

What are P (Primary) waves? Eleanor M. Savko 4/20/2019 What are P (Primary) waves?

Phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking Eleanor M. Savko 4/20/2019

Eleanor M. Savko 4/20/2019 What is liquefaction?

Eleanor M. Savko 4/20/2019 Smaller earthquakes that follow a large earthquake; originating close to the focus of the large earthquake

Eleanor M. Savko 4/20/2019 What are aftershocks?

Eleanor M. Savko 4/20/2019 DAILY DOUBLE!!!

Scale used to measure seismic intensity/damage Eleanor M. Savko 4/20/2019

What is the Mercalli Scale? Eleanor M. Savko 4/20/2019 What is the Mercalli Scale?

Scale used to reflect the amount of energy released by an earthquake. Eleanor M. Savko 4/20/2019 Scale used to reflect the amount of energy released by an earthquake.

What is the Richter Scale? Eleanor M. Savko 4/20/2019 What is the Richter Scale?

Relative age of rock near the mid-Atlantic Ridge Eleanor M. Savko 4/20/2019 Relative age of rock near the mid-Atlantic Ridge

Eleanor M. Savko 4/20/2019 What is very young?

The point in Earth’s interior where energy is released Eleanor M. Savko 4/20/2019 The point in Earth’s interior where energy is released

Eleanor M. Savko 4/20/2019 What is the focus?

The point on Earth’s surface directly above an earthquake’s focus Eleanor M. Savko The point on Earth’s surface directly above an earthquake’s focus 4/20/2019

Eleanor M. Savko 4/20/2019 What is the epicenter?

Instrument used to measure seismic waves Eleanor M. Savko 4/20/2019

Eleanor M. Savko 4/20/2019 What is a seismograph?

Loma Prieta earthquake is a.k.a. _________ Eleanor M. Savko 4/20/2019 Loma Prieta earthquake is a.k.a. _________

What is the Quake of ’89 or the World Series Earthquake? Eleanor M. Savko 4/20/2019

Eleanor M. Savko 4/20/2019 Number of seismograph station readings required to pinpoint the epicenter.

Eleanor M. Savko 4/20/2019 What is 3?

Eleanor M. Savko 4/20/2019

What is a subduction zone/convergent plate boundary? Eleanor M. Savko What is a subduction zone/convergent plate boundary? 4/20/2019

Eleanor M. Savko 4/20/2019 DAILY DOUBLE!!!!

Eleanor M. Savko 4/20/2019

What is a normal fault/divergent plate boundary? Eleanor M. Savko 4/20/2019 What is a normal fault/divergent plate boundary?

Eleanor M. Savko 4/20/2019

What is strike-slip fault/transform fault boundary? Eleanor M. Savko What is strike-slip fault/transform fault boundary? 4/20/2019

Eleanor M. Savko 4/20/2019 Mid-Atlantic Ridge

What is a divergent plate boundary? Eleanor M. Savko 4/20/2019 What is a divergent plate boundary?

Large land mass that Wegener said existed before the continents broke apart and drifted to their present positions Eleanor M. Savko 4/20/2019

Eleanor M. Savko 4/20/2019 What is Pangaea?

The time difference between the P wave and S waves Eleanor M. Savko 4/20/2019 The time difference between the P wave and S waves

Eleanor M. Savko 4/20/2019 What is the lag time?

Causes movement of tectonic plates Eleanor M. Savko 4/20/2019 Causes movement of tectonic plates

What are convection currents? Eleanor M. Savko 4/20/2019 What are convection currents?

Three ways heat is transferred in the geosphere. Eleanor M. Savko Three ways heat is transferred in the geosphere. 4/20/2019

What is conduction, convection and radiation? Eleanor M. Savko What is conduction, convection and radiation? 4/20/2019

Area that separates the lithosphere from the asthenosphere Eleanor M. Savko 4/20/2019 Area that separates the lithosphere from the asthenosphere

What is the Moho Discontinuity? Eleanor M. Savko 4/20/2019 What is the Moho Discontinuity?

Eleanor M. Savko 4/20/2019 Two Earth facts.

What is: 4.6 billion years old; oblate spheroid, surface is 70% water and 30% dry land? Eleanor M. Savko 4/20/2019