Nonlinear Dynamics, Magnitude-Period Formula and Forecasts on Earthquake

Details Nonlinear Dynamics, Magnitude-Period Formula and Forecasts on Earthquake Nonlinear Dynamics, Magnitude-Period Formula and Forecasts on Earthquake

2008-02-02

arxiv.org/abs/0802.0225v1

Physics

General Physics

7 pages

Scientific paper

Based on the geodynamics, an earthquake does not take place until the momentum-energy excess a faulting threshold value of rock due to the movement of the fluid layer under the rock layer and the transport and accumulation of the momentum. From the nonlinear equations of fluid mechanics, a simplified nonlinear solution of momentum corresponding the accumulation of the energy could be derived. Otherwise, a chaos equation could be obtained, in which chaos corresponds to the earthquake, which shows complexity on seismology, and impossibility of exact prediction of earthquakes. But, combining the Carlson-Langer model and the Gutenberg-Richter relation, the magnitude-period formula of the earthquake may be derived approximately, and some results can be calculated quantitatively. For example, we forecast a series of earthquakes of 2004, 2009 and 2014, especially in 2019 in California. Combining the Lorenz model, we discuss the earthquake migration to and fro. Moreover, many external causes for earthquake are merely the initial conditions of this nonlinear system.

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