Reflection Essay on GLY Topic 12

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question
This new volcano has grown from the submarine caldera of Krakatau
answer
Anark Krakatau
question
An eruption of the ancestor to the 19th century Krakatau may have been responsible for global climate impacts noted aout 535 AD
answer
True
question
The largest eruption of Krakatau were measured as pressure spikes on the gasometer of this city
answer
Batavia
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An even larger volcano, Ancient Krakatau, may have occupied the site of Krakatau before it also destroyed itself
answer
True
question
Dutch controller Willem Beyerinck and his family were almost killed by tsunami and pyroclastic flows
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True
question
Krakatau occupies these important straits, one of the busiest channels of commercial navigation since commerce began on the sea
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Sunda Straits
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When was the deadly eruption of Krakatau
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1883
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What famous ocean explorer visited Krakatau more than once before its catastrophic eruption
answer
Captain James Cook
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After the eruption of Krakatau, all that was left of the volcano were small islands surronding a
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submarine caldera
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The sound created by this eruption of this volcano was the loudest noise ever heard in historical times
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Krakatau
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The Krakatau pyroclastic flows over water were cushioned by a layer of
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steam
question
The majority of deaths during the eruption of Krakatau were caused by
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tsunami
question
Batavia (now Jakarta) and Krakatau was under the administration of what country at the time of Krakatau's cataclysmic eruption
answer
Netherlands
question
Krakatau volcanism is caused by subduction into this nearby trench
answer
Sunda
question
Why is the eruption of Krakatau considered the first natural disaster of the modern era?
answer
it was the first to be followed by a global news distribution network
question
Most of the European witnesses to the pre-, syn-, and post-eruption events of Krakatau were
answer
aboard offshore ships
question
Dense concentrations floating pumice are called
answer
pumice rafts
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Pyroclastic surges traveled dozens of miles over water from Krakatau, some crossing the Sunda Straits
answer
True
question
Krakatau was the only volcano in Indonesia
answer
False
question
Krakatau is in what country
answer
Indonesia
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Unlike the 1900 Galveston hurricane, most Hurricane Ike damage was wind damage and not storm surge damage
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false
question
A sea wall does not protect the landward portion of Galveston Island from water rising in the Galveston Harbor and West Bay
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true
question
Hurricane Ike was what category hurricane when it made landfall?
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2
question
Hurricane Ike was the strongest hurricane to hit Galveston since the 1900 hurricane
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true
question
The Galveston sea wall extends the entire length of the barrier island
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false
question
What northern Gulf of Mexico city is more at risk to hurricane damage than Galveston?
answer
New Orleans
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Most barrier islands are vulnerable to extensive storm surge damage with a nearby landfall of a hurricane
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yes
question
A barrier island in a natural state would migrate toward shore with rising sea level
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true
question
All Galveston area structures built on stilts were unharmed by Hurricane Ike
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false
question
Prior to the 1900 hurricane, the city of Galveston was the mot populous city in Texas
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true
question
After the 1900 hurricane, Galveston built this to help protect the city from future storm surge
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a sea wall
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Prior to the 1900 hurricane, the city of Galveston stood an average of how much above sea level
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4.5 feet
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The Chief Meteorologist in Galveston on the eve of the 1900 hurricane was
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Isaac Cline
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Which natural disaster resulted in the greatest loss of life?
answer
the Galveston hurricane of 1900
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North of Galveston Island and across Galveston Harbor is the low lying
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Bolivar Peninsula
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The 1900 Weather Bureau's \"Law of Storms\" predicted that all tropical cyclones moving east to west across the Atlantic would:
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recurve to the north and east along the Atlantic coast
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Galveston was once one to the busiest ports in the United States
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true
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After the 1900 Galveston hurricane what Texas city replaced it as the largest city and port?
answer
Houston
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Cuban meteorologists of 1900 had a better understanding of the behavior of hurricanes than did their American peers
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true
question
North of 40 degrees latitude and south of 35 degrees latitude there is a deficit of incoming short wave radiation relative to outgoing infrared radiation
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true
question
the strongest winds of a hurricane occur
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in the eye wall
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The Atlantic hurricane season is from
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May 15 - November 30
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Which of the following determines the height of the storm surge
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all of these
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What percentage of the U.S. population lives in coastal counties?
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almost 40
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the minimum sustained winds in a hurricane are
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74 mph
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major hurricanes are what categories in the Saffir-Simpson Hurricane Wind Scale?
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3-5
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Inland flooding along the path of land-falling hurricane is greater with a fast moving system than with a slow moving one
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false
question
the deadliest hurricanes/cyclones in history were in this basin
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Indian Ocean
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Atlantic hurricane names are all male names
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false
question
Data transmitted from tsunami detection buoys are used to
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Modify tsunami propagation models
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In which ocean basin is tsunami monitoring less important than the others?
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Atlantic Ocean
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Tsunami detection buoys are connected to a seafloor device that measures
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Pressure fluctuations on the sea bottom
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The shoreline always drops below low tide level before a tsunami comes ashore
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False
question
The first tsunami detection buoy was deployed in what year?
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1995
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An October 2010 earthquake and tsunami on the Sumatra coast resulted in no loss of life because of newly installed tsunami warning systems
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False
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Increasing vegetation along the shoreline and near shore can mitigate tsunami energy as it comes ashore
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True
question
Tetrapods and hexapods are _______ and ________ pronged concrete structures used to mitigate tsunami energy
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four, six
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The operational center of the Pacific Tsunami Warning Center is in what city?
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Honolulu, Hawaii
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An additional tsunami warning center for some North Pacific tsunami is centered in
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Palmer, Alaska
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Forecasts of tsunami heights are more accurate than tsunami arrival times
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False
question
This Pacific rim country has probably engineered and deployed the most systems for the mitigation of tsunami
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Japan
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There were no tsunami detection buoys deployed in the Indian Ocean when the 2004 Sumatra tsunami hit
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True
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The first tsunami crest is always the largest one
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False
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The acronym for the deep-ocean tsunami detection system is
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DART
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The 2004 Sumatra tsunami was caused by a
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Subduction zone megathrust
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About how long did it take for the 2004 Sumatra tsunami to first reach shore?
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20 minutes
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The Earth's rupture that caused the 2004 Sumatra tsunami and earthquake was
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Longest ever recorded
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The maximum height of the 2004 Sumatra tsunami was about
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100 feet
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Which of the following disasters did not occur during the same tectonic boundary?
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1700 Orphan tsunami
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Which one of the following countries had no casualties attributed to the 2004 Sumatra tsunami
answer
South Africa
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A large number of vacationing Europeans were killed in this country as a result of the Sumatra tsunami
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Thailand
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Which tsunami resulted in the greatest loss of life
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The 2004 Sumatra tsunami
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The greatest loss of life from the 2004 Sumatra tsunami occurred where
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Northern Sumatra
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Satellite data detected the 2004 Sumatra tsunami and warned coastal communities
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False
question
In what remote areas of the South Atlantic were Krakatau tsunami observed?
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Cape Horn and South Georgia
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Written eyewitness accounts indicate that there was only one Krakatau tsunami
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False
question
All the cities and villages were destroyed on this funnel-shaped bay to the north of Krakatau
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Lampong Bay
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About how long did it take for the tsunami of Krakatau take to hit the surrounding shores between Java and Sumatra
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30 minutes
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No coastline in the world is more at risk than that of
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Sumatra and Java
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Which of the following shorelines is less likely to experience a tsunami
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Gulf of Mexico
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The eruption of Tambora created larger tsunami than that of Krakatau
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False
question
None of those aboard ships in the Sunda Strait survived the Krakatau tsunami
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False
question
The Krakatau tsunami were strong enough to destroy lighthouses
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True
question
The Krakatau tsunami were created by
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Pyroclastic flows into the ocean and caldera collapse
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The Krakatau tsunami reached a maximum of how high above normal sea level?
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More than 100 feet
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The farthest that the Krakatau tsunami could be detected in the Atlantic was
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The English Channel
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Geography restricted the spread of the Krakatau tsunami east into the
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Java Sea
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Today the capital of Indonesia is called Jakarta. What was the name of Jakarta when Krakatu erupted
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Batavia
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What twp \"Case Studies\" involved earthquakes that caused large tsunami?
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Santorini and Krakatau volcanic eruptions
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The tsunami of Krakatau traveled father around the world than the pressure wave from its most powerful eruption
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False
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The tsunami from Krakatau were felt more strongly in which of the following regions
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Eastern Sumatra and Western Java
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The greatest loss of life from Krakatau tsunami was along the shoreline bordering
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The Sunda Strait
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Which volcano formed a caldera that created a tsunami
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Santorini
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The immediate tsunami death toll on the shorelines near Krakatau was estimated as
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30,000 to 40,000
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Once a tsunami crosses the entire Pacific it seldom has a height of more than 5 meters
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True
question
Studies now indicate a recurrence interval for large Cascadia subduction zone earthquakes of
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400-500 years
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Trees in the Pacific Northwest add ______ rings per year, and are dormant between the months of _________.
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two, August and May
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There are no subduction zones offshore Japan that might create a tsunami generating earthquake
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False
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The best tree ring estimate of the 1700 Cascadian earthquake was from
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a Sitka Spruce root
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Shoreline evidence for past tsunami along Cascadia includes
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All of these
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A published anthology of Japanese earthquakes recorded from 416 AD to 1872 AD includes about how many earthquakes
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greater than 45,000
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During a subduction zone earthquake, the leading edge of the overriding plate is released to ________ while near the shoreline that land ___________:
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Springs up, sinks or subsides
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Most Japanese tsunami originate from earthquakes
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Just offshore Japan
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The data range of the Cascadian earthquake provided by tree ring evidence overlaps the __________ date of the Orphan tsunami, suggesting it was the parent of the tsunami:
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January 26th
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The Pacific Northwest is also under risk from volcano hazards
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True
question
Tree ring dating shows that the sunken ghost forests died when
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After the 1699 growing season and before the 1700 growing season
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Cascadia refers to what region of the united states?
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The Pacific Northwest that is east of the Juan de Fuca plate
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Historical records from South America include no reference to a large earthquake along the South Amercican coast during 1700 AD
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True
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A tsunami with no known point of origin is known as:
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An orphan tsunami
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Computer modeling of the Cascadia tsunami requires that it was what magnitude for it to have caused the Japanese Orphan tsunami?
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8.7-9.2
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The height range of the Japanese Orphan tsunami was about how much
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2-5 meters
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What type of plate boundary is offshore the Washington, Oregon, and northern California?
answer
a subduction zone
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The Cascadian earthquake that caused the Orphan Tsunami occurred after permanent settlement of the region by people of European descent
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False
question
The 1700 Orphan tsunami in Japan had a similar height as another created when and where
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Chile, 1960
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Fortunately, there are no significant Cascadia coastal population centers that might be impacted of another tsunami of the magnitude of Orphan Tsunami
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False
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The vertical distance between a wave crest and trough is called
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Wave height
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The vast majority of tsunami are created by
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large earthquakes at subduction zone plate boundaries
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Wave frequency is usually expressed as
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wave crests/time interval
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Sometimes the first portion of a tsunami to wash ashore is the trough of the wave
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True
question
The height of water behind a tsunami coming ashore rapidly declines because of the short wavelength of tsunami
answer
False
question
The maximum speed of tsunami propagation through the deep ocean basins is closet to
answer
750 km/hour
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A database of 1691 models of tsunami propagation are held by this group to help forecast tsunami arrival times
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NOAA Center for Tsunami research
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The majority of all recorded tsunami occurred in this ocean bath
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Pacific
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What is the usual height of a large tsunami in the open ocean (beyond the continental shelf)?
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less than one meter
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Fortunately, most subduction zone plate boundary earthquakes are far from shorelines, allowing many hours for safe evacuation
answer
False
question
The largest loss of life ever experienced by a tsunami was caused by the
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2004 Sumatra tsunami
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Flank collapses of these Pacific islands have created large ancient tsunami
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Hawaiian Islands
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Wave steepness is a function of wave height divided by
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Wavelength
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Tsunami generally have multiple crests but the first crest is always the highest
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False
question
Tsunami speed decreases as water depth shallows
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True
question
Waves transmit ____________ and not ____________ through the ocean
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energy, mass
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The deadliest known tsunami in the Mediterranean was caused by
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the volcanic eruption of Santorini
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Earthquakes with epicenters on land do not cause tsunami
answer
True
question
The wavelength of tsunami are generally in what range
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more than 100 km
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Tsunami is of _________ derivation and means _________
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Japanese, harbor wave
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Tsunami are considered \"shallow-water\" waves because
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the entire water column moves as a tsunami passes
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Tsunami slow down so much in shallow water that almost all people can outrun them as they wash ashore
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False
question
This island in the Atlantic s considered by some scientists as a threat to potentially create a large tsunami by the collapse of the island flank into the ocean
answer
La Palma
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There is geologic evidence that an asteroid impact once caused a tsunami in the Gulf of Mexico
answer
True
question
The base of wave-driven waves is the depth where
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Water no longer moves in response to a passing wave
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United States Geological Survey
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which government agency if responsible for monitoring volcanoes deemed a risk to the public:
question
true
answer
volcanic hazard maps are necessary before a volcanic risk assessment can be completed
question
false
answer
the atlantic has a greater concentration of active volcanoes than the pacific
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forest management
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which of the following is not of form of volcanic risk mitigation
question
all three named location
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the United States Geological Survey maintains a volcanic observatory(s) for:
question
all of these
answer
which of the following is a factor in evaluating volcanic risk
question
false
answer
researchers have found the behavior of individual volcanoes is less constant than the behavior between volcanoes
question
true
answer
earthquake swarms are often, but not always, precursors to an eruption
question
true
answer
the history of volcanic activity for a specific volcano is important to assessment of its volcanic risk
question
changes in the composition of rocks
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which of the following is not monitored to detect the possibility of new activity by a volcano?
question
Carbon Dioxide is odorless and denser than air, causing it to hug the ground:
answer
true
question
An even larger quantity of gas than in Lake Nyos occurs in this lake of the African Rift Valley between Rwanda and Zaire:
answer
Lake Kiva
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The massive and rapid release of gas from Lake Nyos was caused by:
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a disruption to the stratification of the lake.
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Lake Nyos is occupied what type of volcanic feature?
answer
Marr
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Lake Nyos and Monoun expelled large quantities of this gas, killing large numbers of people:
answer
carbon dioxide
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Lake Nyos is in this African country:
answer
Cameroon
question
Gradual mediation of limnic lakes can be achieved by:
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venting deep gas through a pipe
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Limnic explosions are rare and generally confined to:
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tropical lakes in volcanic regions
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The carbon dioxide in the limnic lake bottoms of Lakes Nyos and Monoun were implaced by:
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groundwater saturated from a magmatic source beneath the lake.
question
Local myths, folklore, and oral traditions are potential indicators of lakes capable of limnic explosions:
answer
true
question
Nevado del Ruiz had no previous history of causing lahars
answer
False
question
What kind of volcano is Nevado del Ruiz?
answer
Stratovolcano
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Volcanoes of what volcanic explosive index can generate lahars?
answer
any
question
Lahars are seldom a danger when tens of kilometers from a volcano
answer
False
question
What volcanic hazard from Nevado del Ruiz was responsible for the loss of life in the village of Armero
answer
A lahar
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There had been no recent volcanic or seismic activity on Nevado del Ruiz in the months prior to the deadly November 13, 1985 eruption:
answer
False
question
Most of those who died in Armero, Columbia, did so from
answer
Crushing injuries and burial
question
Unfortunately, a volcanic hazards map was not finished prior to the Nevado del Ruiz disaster:
answer
False
question
The Columbian government had no knowledge of the danger of Nevado del Ruiz to surrounding communities:
answer
False
question
How does the loss of life from the Nevado del Ruiz lahar rank in terms of twentieth century volcanic distasters
answer
Second only to St. Pierre, Martinique
question
Local officials in Armero were partially at fault for a lack of evacuation
answer
True
question
The City of Armero was built on
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The floodplain of a river draining from Nevado del Ruiz
question
What was the source of water to the Nevado del Ruiz lahar?
answer
An ice cap
question
Do you believe that most large stratovolcanoes in the temperate to high latitudes have permanent snow and/or ice caps?
answer
Yes
question
Nevado del Ruiz is located in the ________ mountains in the country of ________.
answer
Andes, Columbia
question
Which of the following was to blame for the great loss of life in Armero
answer
All of these
question
Why did people settle in the Lagunilla River Valley and Armero?
answer
All of these
question
Swift and efficient disaster response greatly reduced the loss of life in Armero, Columbia, in the days after the disaster
answer
False
question
Why wasn't the volcanic eruption of Nevado del Ruiz detected on the day of Armero's destruction?
answer
They knew it had erupted
question
What relationship does volcanism in the Andes have to plate tectonics?
answer
The Andes are above a subduction zone
question
The nuez ardente hit St. Pierre on May 8th, 1902, occurred at approximately what time of day
answer
8 am
question
The greatest twentieth century loss of life from a volcanic eruption was the eruption of
answer
Mt. Pelee
question
A subduction zone occurs to the ________ of Martinique where the ________ tectonic plate is subducted
answer
east, South American
question
All the islands of the Lesser Antilles are volcanic
answer
True
question
Most ships at anchor in the bay of St. Pierre also were destroyed by the eruption of Mt. Pelze
answer
True
question
Only one St. Pierre survivor lived long enough to tell of his ordeal. Where was he found?
answer
In his jail cell
question
There were no eruptions on Martinique during historic times, until the year St. Pierre was destroyed
answer
False
question
Because of its sturdy construction which of the following St. Pierre buildings survived the eruption intact?
answer
none of these survived intact
question
Martinique is a department of what country?
answer
France
question
When the shallow still in the Etand Sec eroded away a ________ was sent down the Rivizre Blanche to the sea
answer
lahar
question
In what year did an eruption of Mt. Pelze destroy the city of St. Pierre?
answer
1902
question
Prior to the eruption, the formation of a lake in the crater of Mt. Pelze was caused by
answer
rising magma pushed up groudwater
question
Today the principal crops of Martinique are
answer
sugar cane and bananas
question
Volcanic eruptions can be accompanied by electrical discharges in their ash clouds
answer
True
question
The entire island of Martinique is built almost entirely of
answer
coalesced pyroclastic flows
question
The process that buried the Gurrin rum and sugar factory also caused what to happen in St. Pierre?
answer
A small tsunami
question
Submarine cables were cut not long before the catastrophic eruption of Mt. Pelze and probably has nothing to do with the subsurface movement of magma
answer
False
question
Some weak nuze ardentes occurred prior to the deadly Mt. Pelze eruption but were not cause for most of the St. Pierre population to evacuate
answer
True
question
Martinique is on this tectonic plate
answer
Caribbean
question
Today St. Pierre, Martinique, is uninhabited
answer
False
question
What destroyed the plantation and guerin sugar and rum factory on the Riviere Balnche?
answer
A lahar
question
The village of Prcheur, on the coast, was cutoff from the rest of Martinique by
answer
Lahars and pyroclastic flows
question
What kind of volcano is Mt. Pelee?
answer
Stratovolcano
question
The French use the term Peleean cloud for cloud for the type of glowing, destructive, hot avalanche of gas and ash inundated St. Pierre
answer
Nuee Ardente
question
The mayor and governor advised the population to evacuate St. Pierre
answer
False
question
The Etang Sec on Mt. Pelee was where the deadly pyroclastic flows originated from. What geologic feature was the Etang Sec?
answer
a caldera from an older eruption
question
Martinique is an island in the
answer
Windward Islands of the Lesser Antilles
question
Sporadic eruptions of Mt. Pelee continued for decades after the destruction of St. Pierre
answer
True
question
The Needle of Pelee was a tall and slender
answer
volcanic dome formed by very viscous lava pushed up though the vent
question
The walls of most buildings in St. Pierre are composed of what type of material
answer
volcanic rocks
question
This new volcano has grown from the submarine caldera of Krakatau
answer
Anark Krakatau
question
An eruption of the ancestor to the 19th century Krakatau may have been responsible for global climate impacts noted aout 535 AD
answer
True
question
The largest eruption of Krakatau were measured as pressure spikes on the gasometer of this city
answer
Batavia
question
An even larger volcano, Ancient Krakatau, may have occupied the site of Krakatau before it also destroyed itself
answer
True
question
Dutch controller Willem Beyerinck and his family were almost killed by tsunami and pyroclastic flows
answer
True
question
Krakatau occupies these important straits, one of the busiest channels of commercial navigation since commerce began on the sea
answer
Sunda Straits
question
When was the deadly eruption of Krakatau
answer
1883
question
What famous ocean explorer visited Krakatau more than once before its catastrophic eruption
answer
Captain James Cook
question
After the eruption of Krakatau, all that was left of the volcano were small islands surronding a
answer
submarine caldera
question
The sound created by this eruption of this volcano was the loudest noise ever heard in historical times
answer
Krakatau
question
The Krakatau pyroclastic flows over water were cushioned by a layer of
answer
steam
question
The majority of deaths during the eruption of Krakatau were caused by
answer
tsunami
question
Batavia (now Jakarta) and Krakatau was under the administration of what country at the time of Krakatau's cataclysmic eruption
answer
Netherlands
question
Krakatau volcanism is caused by subduction into this nearby trench
answer
Sunda
question
Why is the eruption of Krakatau considered the first natural disaster of the modern era?
answer
it was the first to be followed by a global news distribution network
question
Most of the European witnesses to the pre-, syn-, and post-eruption events of Krakatau were
answer
aboard offshore ships
question
Dense concentrations floating pumice are called
answer
pumice rafts
question
Pyroclastic surges traveled dozens of miles over water from Krakatau, some crossing the Sunda Straits
answer
True
question
Krakatau was the only volcano in Indonesia
answer
False
question
Krakatau is in what country
answer
Indonesia
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