GLY1880 ASSIGNMENTS EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
The earthquakes of 1811 and 1812 were: - ANS A long sequence of earthquakes that
included three large earthquakes over several months
Among other damaging impacts the earthquakes of 1811 to 1812 caused the Mississippi River
to flow backwards - ANS True
One thing that makes studying or earthquakes in this region so difficult is that the surface is
material is - ANS Lewis unconsolidated ocean and river sediments that simply shift around
instead of forming clearly defined surface faults
The earthquakes in the New Madrid seismic zone are the result of Shifting blocks of rock deep in
the subsurface from an old - ANS Rift Zone where the continent started breaking apart
The article states that the faults that cause the earthquakes are experiencing compressive stress
and area being compressed most commonly results and what kind of movement along a fault -
ANS Reverse
Think about your answers to questions 4 and 5 the stress is impacting this fold Zone have -
ANS Changed over time from tensional pulling apart to compressive squeezing in
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, What was the estimated magnitude of the three primary earthquakes in 1811 to 1812 -
ANS It was greater than M 7.0
The shaking during the historic quakes is best described as - ANS Strong and damaging
hundreds of miles from the epicenters
Which of the following were observed in the Mississippi river valley during the series of
earthquakes - ANS Sand blows Earth fissures and overflow of the Mississippi River
Based on geologic and historical evidence the chance of another major / catastrophic
earthquake within the next 50 years is - ANS 7 to 10%
And the witness account called little Prairie Missouri a man release the story of a bone man
traveling down the Mississippi River at the time of the second primary earthquake in the series
was it about man say had happened to the riverbank - ANS Slope failures and landslides
The New Madrid earthquakes were historically significant and more than just those sizes
damage these earthquakes were also the first natural disaster in the US that - ANS Receive
federal funds Disaster Assistance
This scenario has the earthquake epicenter in the middle of the fault Zone near the epicenter of
one of the historic earthquakes which major city was start shaking first - ANS Memphis
early warning systems are only effective if there was time for people to react if we had a system
that can instantly warn people of a major Quake on this fold how soon after the start of the
earthquake with the city you choose a number 14 feel shaking is that enough time for any
meaningful actions from the citizens of that City - ANS 15 seconds
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS GRADED A+
2025/2026
The earthquakes of 1811 and 1812 were: - ANS A long sequence of earthquakes that
included three large earthquakes over several months
Among other damaging impacts the earthquakes of 1811 to 1812 caused the Mississippi River
to flow backwards - ANS True
One thing that makes studying or earthquakes in this region so difficult is that the surface is
material is - ANS Lewis unconsolidated ocean and river sediments that simply shift around
instead of forming clearly defined surface faults
The earthquakes in the New Madrid seismic zone are the result of Shifting blocks of rock deep in
the subsurface from an old - ANS Rift Zone where the continent started breaking apart
The article states that the faults that cause the earthquakes are experiencing compressive stress
and area being compressed most commonly results and what kind of movement along a fault -
ANS Reverse
Think about your answers to questions 4 and 5 the stress is impacting this fold Zone have -
ANS Changed over time from tensional pulling apart to compressive squeezing in
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, What was the estimated magnitude of the three primary earthquakes in 1811 to 1812 -
ANS It was greater than M 7.0
The shaking during the historic quakes is best described as - ANS Strong and damaging
hundreds of miles from the epicenters
Which of the following were observed in the Mississippi river valley during the series of
earthquakes - ANS Sand blows Earth fissures and overflow of the Mississippi River
Based on geologic and historical evidence the chance of another major / catastrophic
earthquake within the next 50 years is - ANS 7 to 10%
And the witness account called little Prairie Missouri a man release the story of a bone man
traveling down the Mississippi River at the time of the second primary earthquake in the series
was it about man say had happened to the riverbank - ANS Slope failures and landslides
The New Madrid earthquakes were historically significant and more than just those sizes
damage these earthquakes were also the first natural disaster in the US that - ANS Receive
federal funds Disaster Assistance
This scenario has the earthquake epicenter in the middle of the fault Zone near the epicenter of
one of the historic earthquakes which major city was start shaking first - ANS Memphis
early warning systems are only effective if there was time for people to react if we had a system
that can instantly warn people of a major Quake on this fold how soon after the start of the
earthquake with the city you choose a number 14 feel shaking is that enough time for any
meaningful actions from the citizens of that City - ANS 15 seconds
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
