The Ms= 8 tensional earthquake of 9 December 1950 of northern Chile and its relation to the seismic potential of the region
E Kausel, J Campos - Physics of the earth and planetary interiors, 1992 - Elsevier
The only known great (M s= 8) intermediate depth earthquake localized downdip of the main
thrust zone of the Chilean subduction zone occurred landward of Antofagasta on 9
December 1950. In this paper we determine the source parameters and rupture process of
this shock by modeling long-period body waves. The source mechanism corresponds to a
downdip tensional intraplate event rupturing along a nearly vertical plane with a seismic
moment of M 0= 1× 10 28 dyn cm, of strike 350°, dip 88°, slip 270°, M w= 7.9 and a stress …
thrust zone of the Chilean subduction zone occurred landward of Antofagasta on 9
December 1950. In this paper we determine the source parameters and rupture process of
this shock by modeling long-period body waves. The source mechanism corresponds to a
downdip tensional intraplate event rupturing along a nearly vertical plane with a seismic
moment of M 0= 1× 10 28 dyn cm, of strike 350°, dip 88°, slip 270°, M w= 7.9 and a stress …
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