Plate Tectonics

What is the elastic rebound theory?


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2016-01-13 02:50:44
2016-01-13 02:50:44

The elastic rebound theory was developed by Harry Fielding Reid, an American geophysicist who was studying the 1906 San Francisco earthquake.

He observed that points on the Earth's surface distant from the San Andreas fault had gradually moved prior to the earthquake whereas points on the surface directly on and around the fault had not.

During the earthquake the points next to the fault zone which had originally been static had suddenly shifted to match up with the points at a greater distance from the locked fault zone.

He concluded that this was due to the accumulation of elastic strain within the Earth's crust around the fault zone and that when the stress that caused this strain exceeded the strength of the rock mass or fault zone in the crust it suddenly ruptured. This caused the stored energy (termed elastic potential energy) to be released in one instant, causing an earthquake, and also meant that the rock mass around the fault zone that had originally been locked in position, snapped or rebounded to match the position of the rock mass at a greater distance from the fault. As such he coined the term "elastic rebound" to describe this phenomenon.

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Related Questions

The elastic rebound theory and the theory of plate tectonics.

The elastic rebound theory is an explanation for the sudden release of energy that causes earthquakes when deformed rocks fracture and rebound to their original undeformed condition.

The Elastic rebound theory is the explanation for how energy is spread during earthquakes. As rocks are forced to shift by faults, they accumulate energy until they are forced to slowly deform.

Elastic Rebound is the sudden return of elastically deformed rock to its underformed shape

When the rocks break or move, a fault is produced. As the rocks break energy is released in the form of waves this causes the crust of the Earth to actually shake This explanation of how earthquakes occur is known as the elastic rebound theory

Because elastic Rebound cause earthquakes(During elastic rebound, energy is released, some of this energy travels as seismic waves, and then the waves causes an earthquake).

Inelastic things can not be stretched or do not rebound while elastic things will stretch, bounce, rebound, etc..

H. Reid, following after the 1906 San Francisco earthquake

They are not considered safe b/c of Reids Elastic Rebound Theory.

They can be stretched and yet snapped back into their previous shape when the tensional stress is relieved.

The elastic-rebound theory was found from the 1906 San Francisco earthquake

During elastic rebound, energy is released. Some of this energy travels as seismic waves. The waves then causes an earthquake.

The answer is C: Elastic Rebound a fault displacement b stress fracture c elastic rebound or seismic rebound one of those

Harry Fielding Reid has written: 'The elastic-rebound theory of earthquakes' -- subject(s): Earthquakes

When the rocks spring back into position of no strain at the moment of an earthquake triggering vibrations in the earths crust

caca response: yeah right

There is a theory called plate tetonics, which is basically that the earth has many different plates that sometimes move. When they move, they take the land above them with them. The elastic rebound theory is one of the reasons for earthquakes.

the sudden return of elastically deformed rock to its original shape

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