EES 1: Exam 1 Review Part 1

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Ritchter/moment magnitude

20. The ___________ magnitude scale is a measure of the energy released. It does not directly measure the extent of building damage

Beno Gutenberg

Discovered the core/mantle boundary

Andrija Mohorovicic

Discovered the crust/mantle boundary

Inge Lehmann

Discovered the inner core/outer core boundary

Through seismic waves

How do we know about the earth's interior?

5-80 km

How thick is the crust?

Not very well

How well can scientists predict earthquakes?

Mantle

In which region of the Earth does convection take place?

900

The energy released during a magnitude 8 earthquake is approximately ____________ times greater than the energy released during a magnitude 6 earthquake

Asthenosphere

The partially molten layer beneath the lithosphere is called the _______________

Iron

What element makes up most of the Earth's core?

Normal, reverse, and thrust

What is a dip-slip fault?

6400 km

What is the approximate distance from the surface to the center of the Earth?

Creates the magnetic field

What is the importance of the outer core?

3

What is the minimum number of seismograph stations needed to locate the epicenter of an earthquake?

First person to state that the Earth's interior was layered

What was Andrija Mohorovicic's major contribution to geology?

Oceanic

Which crust is more dense, continental or oceanic?

Continental

Which crust is thicker, continental or oceanic?

Bedrock

Which foundation material is most stable during earthquake shaking?

Outer core

Which layer in the Earth does not transmit S-waves?

P waves

Which of the following types of seismic waves arrive at a seismometer first?

Inner core

Which region in the Earth consists primarily of solid iron?

Outer core (2)

Which region in the Earth is molten?


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