EES 1: Exam 1 Review Part 1
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?