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Volcanoes and Volcanic Hazards

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Discuss volcanic hazards. Although commonly thought to be associated with most volcanic eruptions (by the general public), lava is rarely responsible for the loss of life. Which hazards would tend to be more deadly? Finally, indicate and discuss those hazards that are a direct result of volcanic activity as well as those hazards that are indirectly linked.

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RESPONSE:

1. Discuss volcanic hazards. Although commonly thought to be associated with most volcanic eruptions (by the general public), lava is rarely responsible for the loss of life. Which hazards would tend to be more deadly? Finally, indicate and discuss those hazards that are a direct result of volcanic activity as well as those hazards that are indirectly linked.

Volcanic hazards include gases, lava and pyroclastic flows, landslides, earthquakes, and explosive eruptions.

· Eruptions can be relatively quiet, producing lava flows that creep across the land at 2 to 10 miles per hour.

· Explosive eruptions can shoot columns of gases and rock fragments tens of miles into the atmosphere, spreading ash (direct result) hundreds of miles downwind.

· Lava flows are streams of molten rock that either pour from a vent quietly or explosively by lava fountains. Because of their intense heat, lava flows are also great fire hazards (indirect result). Lava flows destroy everything in their path, but most move slowly enough that ...

Solution Summary

This solution identifies and explains volcanic hazards associated with most volcanic eruptions, including those hazards that are a direct result of volcanic activity as well as those hazards that are indirectly linked.

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Based on your research, do the following:

1. Identify a minimum of three different natural phenomena that are typically responsible for natural disasters. Analyze the potential impact of these disasters.

2. Analyze how these phenomenon are monitored, or not via internet. Critique available Web sites, which publicly display up-to-date monitored information related to each of the natural phenomena you have identified.

Focus on the following aspects:
Geography:
What parts of the world are potentially affected by these phenomena? Specifically identify the countries.

Resources:
What kinds of resources are allocated toward monitoring these phenomena and why?
What types of Web resources monitor the phenomena and provide up-to-date information about them?
What kinds of technology are involved in monitoring the phenomena?

Politics:
What political ramifications would this disaster-preparedness technology cause between more-developed countries and less-developed countries?
What kinds of issues could this technology cause between less-developed countries?

Economics:
How would this technology directly impact the economies of those countries that have the technology versus those countries that do not?
Do you predict any indirect impact? What current evidence support your position?

Disaster Preparedness:
What types of systems are in place in terms of disaster preparedness related to these monitored phenomena?
Summarize your findings. Evaluate how this technology will impact the future of humanity, both positively and negatively. Be sure to consider the political and economic issues discussed in your future predictions.

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