Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
Laboratory 8: Geologic Hazards- Earthquakes and
Landslides
Due Dec 10 at 11:59pm Points 14 Questions 24
Available Nov 24 at 9am - Dec 10 at 11:59pm Time Limit None
Allowed Attempts 2
Instructions
Learning Objectives
By completing this lab, students will:
Understand the difference between stress and strain and how both influence rock deformation
Learn why earthquakes occur and why we experience shaking during an earthquake
Gain insights into what factors promote landslides
Recognize why the Pacific Northwest is prone to certain geologic hazards
ESS101 Lab 8: Geohazards
You are allowed 2 attempts to complete this lab.
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 1 of 44
,Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
This quiz was locked Dec 10 at 11:59pm.
Attempt History
Attempt Time Score
LATEST Attempt 1 90 minutes 14 out of 14
Answers will be shown after your last attempt
Score for this attempt: 14 out of 14
Submitted Dec 8 at 10:33pm
This attempt took 90 minutes.
Introduction
Most of the geological processes that we have covered in previous labs
take place over thousands or millions of years. Many of these
processes are impossible to observe during our lifetimes and have little
direct effects on our everyday lives. In this lab, we are going to focus on
geologic processes that can occur almost instantaneously and that
profoundly impact our lives and the landscapes we live in. In particular,
we will explore the processes that produce earthquakes and landslides,
two phenomena that pose serious geologic hazards in the Pacific
Northwest.
Question 1 pts
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 2 of 44
,Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
Laboratory Honor Statement
Cheating or plagiarism of any kind will not be tolerated in ESS 101. This
includes copying answers from a friend or classmate, copying answers
verbatim found on the internet or other literary sources, or copying any
work that may answer the question being asked. Make sure you always
use your own words when answering the questions in the homework
and cite appropriate references if you use them to help you answer the
question. Anyone caught violating the academic code of conduct
(https://www.washington.edu/cssc/for-students/academic-misconduct/)
will receive a “0” grade on the assignment, and if the conduct is
deemed egregious, reported to the UW Academic Misconduct
representative.
I acknowledge that I have carefully read and understand the above
statement regarding the consequences of cheating and plagiarism, and
promise to complete my work in this class with honesty and
integrity. Answer "True" below supporting your acknowledgement.
True
False
A. Earthquakes and Faults
Stress and Strain
As you learned in Lab 2, the Earth’s crust is broken up into tectonic
plates. The movements of these plates exerts great forces, termed
stresses, at their boundaries. Importantly, not all stress is the same.
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 3 of 44
, Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
The specific type of stress produced from the motion of a given plate
depends directly on the type of plate boundary. For example, a
divergent boundary will produce a different stresses than a convergent
boundary. In addition, stress can be placed on rocks within a plate
(rather than at a boundary) from a variety of sources, such as a glacier
pushing down (compressing) a section of a plate. Generally, we can
divide stress into three categories: tension, compression, and shear.
Figure 8-1 below illustrates each of these:
Figure 8-1 Diagrams illustrating the three different types of stress.
Source: https://earthquake.usgs.gov/learn/glossary/?
term=compressional%20stress
(https://earthquake.usgs.gov/learn/glossary/?
term=compressional%20stress)
As you can see Figure 8-1, each type of stress represents a different
force. As you can see in the figure, each type of stress represents a
different force. Tensional stress is equivalent to forces pulling rocks
apart, while compressional stress is equivalent to forces pushing rocks
together. Shear stress is different from each of these, as it forces rocks
to slide past one another.
Question 2 0..25 pts
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 4 of 44
Laboratory 8: Geologic Hazards- Earthquakes and
Landslides
Due Dec 10 at 11:59pm Points 14 Questions 24
Available Nov 24 at 9am - Dec 10 at 11:59pm Time Limit None
Allowed Attempts 2
Instructions
Learning Objectives
By completing this lab, students will:
Understand the difference between stress and strain and how both influence rock deformation
Learn why earthquakes occur and why we experience shaking during an earthquake
Gain insights into what factors promote landslides
Recognize why the Pacific Northwest is prone to certain geologic hazards
ESS101 Lab 8: Geohazards
You are allowed 2 attempts to complete this lab.
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 1 of 44
,Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
This quiz was locked Dec 10 at 11:59pm.
Attempt History
Attempt Time Score
LATEST Attempt 1 90 minutes 14 out of 14
Answers will be shown after your last attempt
Score for this attempt: 14 out of 14
Submitted Dec 8 at 10:33pm
This attempt took 90 minutes.
Introduction
Most of the geological processes that we have covered in previous labs
take place over thousands or millions of years. Many of these
processes are impossible to observe during our lifetimes and have little
direct effects on our everyday lives. In this lab, we are going to focus on
geologic processes that can occur almost instantaneously and that
profoundly impact our lives and the landscapes we live in. In particular,
we will explore the processes that produce earthquakes and landslides,
two phenomena that pose serious geologic hazards in the Pacific
Northwest.
Question 1 pts
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 2 of 44
,Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
Laboratory Honor Statement
Cheating or plagiarism of any kind will not be tolerated in ESS 101. This
includes copying answers from a friend or classmate, copying answers
verbatim found on the internet or other literary sources, or copying any
work that may answer the question being asked. Make sure you always
use your own words when answering the questions in the homework
and cite appropriate references if you use them to help you answer the
question. Anyone caught violating the academic code of conduct
(https://www.washington.edu/cssc/for-students/academic-misconduct/)
will receive a “0” grade on the assignment, and if the conduct is
deemed egregious, reported to the UW Academic Misconduct
representative.
I acknowledge that I have carefully read and understand the above
statement regarding the consequences of cheating and plagiarism, and
promise to complete my work in this class with honesty and
integrity. Answer "True" below supporting your acknowledgement.
True
False
A. Earthquakes and Faults
Stress and Strain
As you learned in Lab 2, the Earth’s crust is broken up into tectonic
plates. The movements of these plates exerts great forces, termed
stresses, at their boundaries. Importantly, not all stress is the same.
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 3 of 44
, Laboratory 8: Geologic Hazards- Earthquakes and Landslides: ESS 101 B Au 23: Introduction To Geology And Societal Impacts 12/11/23, 8:32 PM
The specific type of stress produced from the motion of a given plate
depends directly on the type of plate boundary. For example, a
divergent boundary will produce a different stresses than a convergent
boundary. In addition, stress can be placed on rocks within a plate
(rather than at a boundary) from a variety of sources, such as a glacier
pushing down (compressing) a section of a plate. Generally, we can
divide stress into three categories: tension, compression, and shear.
Figure 8-1 below illustrates each of these:
Figure 8-1 Diagrams illustrating the three different types of stress.
Source: https://earthquake.usgs.gov/learn/glossary/?
term=compressional%20stress
(https://earthquake.usgs.gov/learn/glossary/?
term=compressional%20stress)
As you can see Figure 8-1, each type of stress represents a different
force. As you can see in the figure, each type of stress represents a
different force. Tensional stress is equivalent to forces pulling rocks
apart, while compressional stress is equivalent to forces pushing rocks
together. Shear stress is different from each of these, as it forces rocks
to slide past one another.
Question 2 0..25 pts
https://canvas.uw.edu/courses/1664976/quizzes/1922407 Page 4 of 44
