Question: What Will Happen To A Straight Fence That Undergoes Elastic Strain During An Earthquake?

Does elastic strain cause earthquakes?

Most natural earthquakes are caused by sudden slippage along a fault zone. The elastic rebound theory suggests that if slippage along a fault is hindered such that elastic strain energy builds up in the deforming rocks on either side of the fault, when the slippage does occur, the energy released causes an earthquake.

How are elastic rebound and elastic deformation different?

How are elastic rebound and elastic deformation different? Elastic deformation causes objects to bend, whereas rebound causes objects to return to their original shape.

Does elastic rebound happen?

Elastic rebound is what happens to the crustal material on either side of a fault during an earthquake. The rock becomes distorted, or bent, but holds its position until the earthquake occurs, and the rock snaps back into an unstrained position, releasing energy that produces seismic waves.

Which phrase describes the type of deformation experience by rocks before an earthquake?

Which phrase describes the type of deformation experienced by rocks before an earthquake? Elastic deformation causes objects to bend, while rebound causes objects to return to their original shape.

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What are the 3 fault types?

There are three main types of fault which can cause earthquakes: normal, reverse (thrust) and strike-slip. Figure 1 shows the types of faults that can cause earthquakes. Figures 2 and 3 show the location of large earthquakes over the past few decades.

What are the 3 types of deformation?

When a rock is subjected to increasing stress it passes through 3 successive stages of deformation. Elastic Deformation — wherein the strain is reversible. Ductile Deformation — wherein the strain is irreversible. Fracture – irreversible strain wherein the material breaks.

What does the P stand for in P wave?

Compressional waves are also called P-Waves, (P stands for “primary” ) because they are always the first to arrive.

What type of building material could stop ground shaking?

Wood and steel are much better at withstanding seismic waves. Both of these materials flex as the earth shakes. Weak materials can be reinforced to make them relatively safe. Reinforcing structures with a steel frame, or driving beams through a structure will help support it during shaking.

What does the elastic rebound theory explain quizlet?

Elastic rebound theory. IT DESCRIBES THE BUILD UP AND RELEASE OF STRESS DURING AN EARTHQUAKE. Rocks on either side of a fault are locked in place by friction. Rocks will slowly deform over time. When the stress exceeds the strength of the rock, the rocks will fault.

Which claim explains how elastic rebound takes place?

Most natural earthquakes are caused by sudden slippage along a fault zone. The elastic rebound theory suggests that if slippage along a fault is hindered such that elastic strain energy builds up in the deforming rocks on either side of the fault, when the slippage does occur, the energy released causes an earthquake.

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What should be needed for the rocks to successfully rebound to original shape?

As the Earth’s crust deforms, the rocks which span the opposing sides of a fault are subjected to shear stress. Then they separate with a rupture along the fault; the sudden movement releases accumulated energy, and the rocks snap back almost to their original shape.

What are examples of deformation?

Types of deformations include:

  • Elastic deformation – This can be reversible.
  • Plastic deformation – This may be irreversible.
  • Metal fatigue – This occurs primarily in ductile metals.
  • Compressive failure -This is applied to bars, columns, etc., which leads to shortening.
  • Fracture – This may be irreversible.

How a tear fault can cause an earthquake?

The friction across the surface of the fault holds the rocks together so they do not slip immediately when pushed sideways. Eventually enough stress builds up and the rocks slip suddenly, releasing energy in waves that travel through the rock to cause the shaking that we feel during an earthquake.

Is hypocenter and focus the same?

The hypocenter is the point within the earth where an earthquake rupture starts. Also commonly termed the focus.

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