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Earth Sciences: Understanding Earthquakes

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Earth Sciences: Understanding Earthquakes

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Questions and Answers

What is the primary cause of the build-up of stress and strain along faults in the Earth's crust?

The primary cause of the build-up of stress and strain along faults in the Earth's crust is tectonic forces or volcanic activity.

What are the three types of plate boundaries where interactions between plates can result in stress accumulation and earthquakes?

The three types of plate boundaries are convergent, divergent, and transform boundaries.

What is the term used to describe small earthquakes induced by human activities such as mining, reservoir-induced seismicity, and oil/gas extraction?

Anthropogenic earthquakes

What is the point within the Earth where the rupture begins during an earthquake?

The focus or hypocenter Signup and view all the answers

What is the form in which the stored energy is released during an earthquake?

Seismic waves Signup and view all the answers

What is the primary difference between primary waves and secondary waves in terms of their propagation through the Earth's materials?

Primary waves can travel through solids, liquids, and gases, while secondary waves can only travel through solids. Signup and view all the answers

What is the main consequence of surface waves during an earthquake?

Surface waves are responsible for much of the ground shaking and damage during earthquakes. Signup and view all the answers

What are some of the human impacts that can occur as a result of an earthquake?

Injuries, loss of life, displacement of populations, and disruption of essential services such as water, power, and communication networks. Signup and view all the answers

What is one way to mitigate the risks posed by earthquakes?

Implementing building codes and construction practices resistant to seismic forces. Signup and view all the answers

What is the importance of studying earthquakes and their mechanisms?

Studying earthquakes helps us gain insights into Earth's geological complexity and work towards building resilient societies capable of withstanding and recovering from seismic events. Signup and view all the answers