Q:

What are fault lines?

A:

Quick Answer

Fault lines are where faults in the Earth's crust intersect with the top surface of the Earth. A fault on the Earth's crust is generally a crack that makes up the boundary between the planet's various tectonic plates. Faults can be classified as either active or inactive.

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Full Answer

An active fault line is defined as areas where the Earth's crust moves over a period of time. This movement can generate earthquakes. Fault lines that are inactive show signs of previous crust movement but are relatively static in nature. Fault lines on the Earth's crust can appear as a normal dip-slip fault, a reverse dip-slip fault or a strike-slip fault.

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Related Questions

  • Q:

    What type of stress is placed on a normal fault?

    A:

    The type of stress placed on a normal fault is tensional stress. In normal faulting, tensional stress gradually weakens the Earth's crust until the rock cracks, with one crustal block moving downwards relative to its adjacent fault block.

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  • Q:

    Where do most earthquakes take place ?

    A:

    The circum-Pacific seismic belt, often referred to as the Ring of Fire, experiences more earthquakes than anywhere else on Earth. The belt stretches from the southern tip of the Americas north to Alaska, across the Bearing Strait, down through Japan and into New Zealand.

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  • Q:

    What is seismology?

    A:

    Seismology is the study of waves of energy, especially earthquakes, that move through and around the Earth. These waves of energy are called seismic waves, and the scientists who study them are called seismologists.

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  • Q:

    What is the epicenter of an earthquake ?

    A:

    The epicenter of an earthquake is the point on the surface of the Earth directly above the point in the crust where a seismic rupture occurs. This origin point within the crust is called the hypocenter or focus.

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