HW_HawaiiVO-JRH
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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 bird 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?
- There are 6 volcanoes monitored at this observatory.
2.
How many volcano(es), if any, are considered:
a.
Very high threat:
- Kilauea and Mauna Loa
b.
High threat: -Hualapai
c.
Moderate threat:
- Haleakala and Manua Kea
3.
Are all of these the same type of volcano? -Yes these are all shield volcanoes
4.
Do any volcanoes have an advisory above green/normal? If so, which volcanoes, what color is the
advisory, and why?
- Kilauea currently has an orange watch advisory, that’s erupting. The current is stable for now at
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the summit and rift zones. There have been high levels of volcanic gas which is hazardous.
5.
Are volcanologists predicting it will erupt? -
Kilauea erupted on January 5
th,
2023. Since then all the recent eruptive has been confined to the volcanic crater. The east and central cents are not erupting. The western lake of Kilauea remains active but has very weak lava flows.
Part 2
: HVO with more focus
As you can 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?
-Kilauea is a shield volcano
2.
What is the composition of the lava?
- Kilauea has a Basalt composition
3.
What is the “Threat Potential”?
- The threat level is very high
4.
Look at “Current Alerts”
a.
What is the current Volcano Alert Level: - The alert level is Watch
b.
What is the current Aviation Color Code: - The current aviation color code is orange
5.
Summarize the “Activity Summary”
a.
Is Kilauea erupting?
- Yes but has diminished greatly in the past 24 hours
b.
What is the rate of seismicity?
-The rate of the seismicity and ground deformation is undisclosed however, steady rates of both ground deformation and seismicity continue along both the east rift zone and the southwest rift zone.
c.
What is the rate of ground deformation?
- The rate of the seismicity and ground deformation is undisclosed however, steady rates of both ground deformation and seismicity continue along both the east rift zone and the
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southwest rift zone.
d.
What is the rate of emissions, and what is Kilauea emitting?
- Kilauea is emitting sulfur dioxide at a rate of 2,000 tonnes per day which was last measured back in February of 2023
6.
Based on this information, would you expect that Kilauea will erupt shortly? Explain your answer. (2-3 sentences)
7.
If you had the opportunity to purchase a house that was located in Kilauea, what would you do to try to protect it from future eruptions? Explain your answer. (2-3 sentences)
-
I would never want to purchase a house in Kilauea. Say if I did though to protect it from future eruptions I would build a fence/ wall around the perimeters of my house to affect the lava and other hazards from eruptions. 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? -
Steven Chemtob discussed that the clip he had viewed of the house was nowhere near plate boundaries and or near a probable hot mantle. This was an error on the filmmaker’s part reason why the volcanoes take place near plate boundaries, if not created then by hot plagues rising from
deep within the earth, Which explains how Hawaii has so many volcanoes. Steve Chemtob also states in the film that hits the nail with the precursors that take place before a volcano erupts like an earthquake.
To make this scene more realistic I would have set the scene somewhere near Sandiego Los Angles where it’s closer to a plate boundary.
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