An explicit expression is derived for the body force, magnetic moment and heat source to be applied in the absence of a dislocation to produce a radiation pattern identical to that of a dislocation. These quantities depend only on the fault mechanism and the material properties of the medium in the immediate vicinity of the fault. The theory is developed for dislocations in an anisotropic inhomogeneous thermo-elastic medium that exhibits pyromagnetic and piezomagnetic properties. The magnetic moment equivalent, that completely describes the magnetical effects of the dislocation, is found to be dependent on the discontinuities of the disllacement prescribed across the fault, through the piezomagnetic coefficients. Discontinuities in the thermal field and its derivatives do not contribute to the magnetic moment equivalent, thus leading to the conclusion that pyromagnetism cannot produce magnetic effects.
A thermomagnetoelastic model of the earthquake source mechanism / R. Sabadini, M. Bonafede, E. Boschi. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. C. - ISSN 0390-5551. - 1:6(1978), pp. 523-538.
|Titolo:||A thermomagnetoelastic model of the earthquake source mechanism|
SABADINI, ROBERTO (Primo)
|Settore Scientifico Disciplinare:||Settore GEO/10 - Geofisica della Terra Solida|
|Data di pubblicazione:||1978|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1007/BF02510111|
|Appare nelle tipologie:||01 - Articolo su periodico|