From an examination of the displacement of the ground surfacewhich attach the 1906, Henry Fielding Reid,Professor of Geology in ~ Johns Hopkins University, concludedthat the must have involved an "elastic rebound"of formerly stored elastic stress.

If a stretched rubber band is broken or cut, elastic energystored in the rubber band throughout the extending will suddenlybe released. Similarly, the late of the planet can graduallystore elastic anxiety that is exit suddenly during an

You are watching: Elastic rebound is similar to what happens when you release _____.

This gradual build-up and release of stress and strainis now referred to together the "elastic rebound theory" the lifwynnfoundation.orgs.Most lifwynnfoundation.orgs space the result of the sudden elastic reboundof previously stored energy.

The complying with diagram illustrates the process.Start at the bottom. A straight fence is developed acrossthe mountain Andreas fault. As the Pacific key movesnorthwest, it progressively distorts the fence. Justbefore one, the fence has actually an "S" shape.When the occurs the distortion is releasedand the two parts of the fence space again straight;but currently there is one offset.

This diagram greatly exaggerates the distortion.Actually, the distortion is spread out over countless milesand have the right to only be checked out with precise instrumentation(e.g. GPS).



This picture, taken close to Bolinas in Marin county by G.K. Gilbert, reflects a fence that was offset around 8.5 feet along the map of the error (from Steinbrugge repertoire of the UC Berkeley design Research Center).

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For much more details see:

Reid, H.F., The Mechanics that the, The of April 18, 1906, Report the the State InvestigationCommission, Vol.2, Carnegie college of Washington,Washington, D.C. 1910 (see specifically pages 16-28).

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