What is elastic rebound quizlet?

Elastic rebound refers to how the slippage along a fault (i.e., earthquake) allows the deformed rock to regain its original shape in a new location.

Why is elastic rebound important?

Elastic rebound theory fits in well with the theory of plate tectonics and helps explains the cyclical nature of many earthquakes including why earthquakes repeatedly occur in the same regions.

How does elastic rebound cause a tsunami?

During an earthquake, the ground shakes as stored up energy is released from rocks. Elastic rebound theory states that rock will deform plastically as stresses build up until the stresses become too great and the rock breaks. … Tsunami are deadly ocean waves that are caused by undersea earthquakes.

What is elastic strain in earthquake?

Similarly, the crust of the earth can gradually store elastic stress that is released suddenly during an earthquake. This gradual accumulation and release of stress and strain is now referred to as the elastic rebound theory of earthquakes. … Just before an earthquake, the fence has an S shape.

What does elastic rebound theory say?

In geology, the elastic-rebound theory is an explanation for how energy is released during an earthquake. … 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.

How does elastic rebound theory explain earthquakes?

The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on oppo- site sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their inter- nal strength is exceeded.

What is elastic rebound for kids?

From Academic Kids In geology, the elastic rebound theory is a theory which tries to explain why earthquakes occur. In the theory, fault movements are based on the ability of rock to stick to each other while under stress. When the stress becomes too great then the rocks separate and an earthquake results.

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What is elastic rebound theory Slideshare?

Elastic Rebound Theory According to the theory, the rocks on each side of a fault are moving slowly. If the fault is locked, stress in the rocks increases.

Why is the elastic rebound theory important in earthquake forecasting?

The elastic rebound theory of earthquake sources allows rough prediction of the occurrence of large shallow earthquakes. … Reid gave, for example, a crude forecast of the next great earthquake near San Francisco.

What does elastic rebound cause?

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.

What is elastic rebound heart?

blood ejected during ventricular systole. When diastole begins and blood pressures fall, the. arteries recoil to their original dimensions. This phenomenon is called elastic rebound.

Which claim explains how elastic rebound takes place?

The energy released by an earthquake is the result of elastic rebound. Which claim explains how elastic rebound takes place? Pressure builds on rocks until they suddenly collapse.

Which statement best describes elastic rebound theory?

Which of the following best describes elastic rebound theory of earthquakes? As an earthquake occurs, the elastically deformed rocks along the fault spring back to their original shape as much as possible.

What is the meaning of elastic strain?

A form of strain in which the distorted body returns to its original shape and size when the deforming force is removed.

Why doesn’t the elastic rebound theory satisfactorily explain all earthquakes?

What is earthquake theory?

Earthquakes are caused by a sudden fracture of rock masses along a fault line. … According to the theory, a tectonic earthquake occurs when strains in rock masses have accumulated to a point where the resulting stresses exceed the strength of the rocks, and sudden fracturing results.

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What is a normal fault?

Normal Faults: This is the most common type of fault. It forms when rock above an inclined fracture plane moves downward, sliding along the rock on the other side of the fracture. Normal faults are often found along divergent plate boundaries, such as under the ocean where new crust is forming.

What is fault and types of fault?

A fault is a fracture or zone of fractures between two blocks of rock. … Faults which move horizontally are known as strike-slip faults and are classified as either right-lateral or left-lateral. Faults which show both dip-slip and strike-slip motion are known as oblique-slip faults.

How do plate tectonics and elastic rebound theory explains the occurrence of earthquakes?

Elastic rebound theory Before an earthquake, the buildup of stress in the rocks on either side of a fault results in gradual deformation. Eventually, this deformation exceeds the frictional force holding the rocks together and sudden slip occurs along the fault.

How does the elastic rebound theory explain the occurrence of earthquakes quizlet?

The theory that continuing stress along a fault results in a buildup of elastic energy in the rocks, which is abruptly released when an earthquake occurs.

What causes tectonic plates to move?

Tectonic shift is the movement of the plates that make up Earth’s crust. … The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.

What is the difference between elastic deformation and elastic rebound?

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

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Why are seismic gaps important?

A region of high seismic potential is a seismic gap that, for historic or tectonic reasons, is considered likely to produce a large shock during the next few decades. The seismic gap technique provides estimates of the location, size of future events and origin time to within a few tens of years at best.

How can you demonstrate the elastic rebound theory using a rubber band?

In what way does isostatic disturbances cause an earthquake?

Answer: When the earth’s crust is unable to accommodate itself to the strain due to isostatic imbalance, so sudden release of energy results in violent shock or an earthquake.

What are four types of plate movements can cause earthquakes?

Tectonic Plates and Plate Boundaries

  • Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. …
  • Divergent boundaries where two plates are moving apart. …
  • Transform boundaries where plates slide passed each other.

What force holds plates back in the elastic rebound theory?

Elastic Energy in the Earth In these subduction zones, friction causes the top plate to bend and store elastic energy. Eventually, the elastic energy becomes too great, and the plate will either break or snap back into its original shape. When the plate snaps back, scientists call the event elastic rebound.