HW_HawaiiVO
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Apr 3, 2024
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EES 0836
Hawaii Volcano Observatory (HVO)
Disasters: Geology vs. Hollywood
Introduction
Steven Chemtob, PhD, watched a clip from Disaster Zone: Volcano in New York (2006), and addressed the difficulties of forecasting eruptions. Obviously, in the clip Steven watched, tectonically speaking, there would be no way to predict that a volcano would erupt beneath that man’s house. Note, however, that there are events that can precede eruptions that can aid volcanologists in making predictions. In this activity, you will be using the United States Geological Survey’s Hawaiian Volcano Observatory website and making predictions as to future eruptions. Learning Objectives
●
Compare how the depiction of an eruption of a volcano from the movie Disaster Zone: Volcano in New York relates to real world phenomena. (3, 4, a, b)
●
Outline how the eruption of volcanoes in Hawaii would affect people and the environment. (3, 2, a, c)
●
Assess the possibility of a future eruption through current observations. (1, 3, c)
Part 1: YVO at birds eye view
If you visit Hawaii Volcano Observatory
you can see they observe several volcanoes, including the subaquatic volcano Loihi. Loihi is expected to become the next Hawaiian island in 10,000 to 100,000 years. Using the included website, answer the following questions. 1.
How many volcanoes are monitored at this observatory?
6
2.
How many volcano(es), if any, are considered:
a.
Very high threat: Kilauea and Manua Loa
b.
High threat: Hualalai
c.
Moderate threat: Kama ‘ehuakanaloa
3.
Are all of these the same type of volcano? They are all shield volcanos.
4.
Do any volcanoes have an advisory above green/normal? If so, which volcanoes, what color is the
advisory, and why?
Yes Kilauea is on orange watch and Mauna Loa is on a yellow advisory. They are both considered to be high threats they are at the top of the list to be monitored.
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5.
Has it erupted (if so, how long) or are volcanologists predicting it will erupt any time soon? Of the two volcanos that are currently erupting, I feel most of them to erupt for another 1,000 years or so. I would think it would be Kama ‘ehuakanaloa.
Part 2
: HVO with more focus
As you could see in part 1, HVO is monitoring more than just volcanoes. But we are here to look specifically at Kilauea. Is it leading up to something, or is it just doing what it always does? Either click on the link to Kilauea under threat potential or click here
. 1.
What type of volcano is Kilauea?
It is a shield volcano.
2.
What is the composition of the lava?
Basalt
3.
What is the “Threat Potential”?
Very high
4.
Look at “Current Alerts”
a.
What is the current Volcano Alert Level: Advisory
b.
What is the current Aviation Color Code: Yellow
5.
Summarize the “Activity Summary”
a.
Is Kilauea erupting?
No
b.
What is the rate of seismicity?
55 tonnes
c.
What is the rate of ground deformation?
low
d.
What is the rate of emissions, and what is Kilauea emitting?
55 tonnes and Kilauea is emitting ground cracking and earthquakes.
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6.
If you had the opportunity to purchase a house that was located on Kilauea, what would you do to
try to protect it from future eruptions? Explain your answer. (2-3 sentences)
I would definitely get home insurance that included volcanic damages. I would also try to get together with the community and come up with safety plans and recovery plans.
Short Answer
(2-3 paragraph):
As Steven Chemtob talked about in the reaction video, they noted that some of the events that preceded the eruption of the volcano appear to make sense, albeit on a condensed timeline. Based on what you found in your Hawaiian Volcano observatory research, answer the following questions. ●
What are the similarities and differences between what was in the movie clip and what you researched? In your response, be sure to include all of the noted information that Dr. Chemtob addressed, including tectonic setting, lava composition, events that precede the eruption, as well as the type of volcano they thought it was.
●
Does this compare/differ with your research? Explain your answer.
●
If you were to rewrite this scene, what would you do to make it more realistic? The similarities between the movie scene and the actual volcanic eruption are that both occur on a
shield volcano and involve lava flowing. In the movie, the lava composition is portrayed as thick and viscous, while Hawaiian shield volcanoes typically produce lava that is thin and runny. The events that precede the eruption are also different. In the movie, there is no warning or seismic activity before the eruption, while in real life, there are usually warning signs such as earthquakes
and ground deformation. Also, a volcano would never occur here since there are no plate boundaries nearby. If I rewrote this scene, I would make the location more accurate, the lava more realistic, as well as add warning signs.
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