Share
Explore BrainMass

Volcanoes and Volcanic Hazards

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.

Solution Preview

Please see response attached, which is also presented below. I hope this helps and take care.

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.

$2.19