Does elastic rebound cause earthquakes?
This gradual accumulation and release of stress and strain is now referred to as the “elastic rebound theory” of earthquakes. Most earthquakes are the result of the sudden elastic rebound of previously stored energy.
How is elastic rebound theory related to 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.
Why is 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.
Which of the following best describes elastic rebound theory of earthquakes?
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 explains the elastic rebound theory?
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.
What is the process of elastic rebound theory?
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.
What does the elastic rebound theory describe 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.
How does the elastic rebound theory explain earthquakes?
Elastic-rebound theory. The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their internal strength is exceeded.
What was Reid’s theory of the 1906 earthquake?
Reid’s Elastic Rebound Theory. From an examination of the displacement of the ground surface which accompanied the 1906 earthquake, Henry Fielding Reid, Professor of Geology at Johns Hopkins University, concluded that the earthquake must have involved an “elastic rebound” of previously stored elastic stress.
Where is strain energy stored during an earthquake?
During an earthquake, the tectonic plates of the Earth are moving relative to each other. This creates a “strain energy” that builds up along the edges of the fault planes of both tectonic plates. This energy is stored in the rocks along the fault.
What causes rocks to accrue elastic deformation?
Thus, if a road is built straight across the fault as in Time 1 of the figure panel, it is perpendicular to the fault trace at point E, where the fault is locked. The overall fault movement (large arrows) causes the rocks across the locked fault to accrue elastic deformation, as in Time 2.