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Time-scale invariances in preseismic electromagnetic radiation, magnetization and damage evolution of rocks
Natural Hazards and Earth System Sciences
<p><strong>Abstract.</strong> We investigate the time-scale invariant changes in electromagnetic and mechanical energy releases prior to a rock failure or a large earthquake. The energy release processes are caused by damage evolutions such as crack propagation, motion of charged dislocation, area-enlargement of sheared asperities and repetitive creep-rate changes. Damage mechanics can be used to represent the time-scale invariant evolutions of both brittle and plastic damages. Irreversibledoi:10.5194/nhess-7-599-2007 fatcat:mqq3q72ugnb5jbbtup7r7nrvum