Long-term magnetic anomalies and their possible relationship to the latest greater Chilean earthquakes in the context of the seismo-electromagnetic theory
Enrique Guillermo Cordaro,Patricio Venegas-Aravena,and David Laroze
Enrique Guillermo Cordaro
Observatorios de Radiación Cósmica y Geomagnetismo, Departamento
de Física, FCFM, Universidad de Chile, Casilla 487-3, Santiago,
Chile
Facultad de Ingeniería, Universidad Autónoma de Chile, Pedro de
Valdivia 425, Santiago, Chile
Observatorios de Radiación Cósmica y Geomagnetismo, Departamento
de Física, FCFM, Universidad de Chile, Casilla 487-3, Santiago,
Chile
Department of Structural and Geotechnical Engineering, School of
Engineering, Pontificia Universidad Católica de Chile, Vicuña
Mackenna 4860, Macul, Santiago, Chile
Research Center for Integrated Disaster Risk Management (CIGIDEN),
Santiago, Chile
David Laroze
Instituto de Alta Investigación, Universidad de Tarapacá, Casilla
7D, Arica, Chile
Viewed
Total article views: 4,468 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
3,124
1,250
94
4,468
114
121
HTML: 3,124
PDF: 1,250
XML: 94
Total: 4,468
BibTeX: 114
EndNote: 121
Views and downloads (calculated since 26 Nov 2020)
Cumulative views and downloads
(calculated since 26 Nov 2020)
Total article views: 3,699 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
2,623
993
83
3,699
106
112
HTML: 2,623
PDF: 993
XML: 83
Total: 3,699
BibTeX: 106
EndNote: 112
Views and downloads (calculated since 11 Jun 2021)
Cumulative views and downloads
(calculated since 11 Jun 2021)
Total article views: 769 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
501
257
11
769
8
9
HTML: 501
PDF: 257
XML: 11
Total: 769
BibTeX: 8
EndNote: 9
Views and downloads (calculated since 26 Nov 2020)
Cumulative views and downloads
(calculated since 26 Nov 2020)
Viewed (geographical distribution)
Total article views: 4,468 (including HTML, PDF, and XML)
Thereof 4,255 with geography defined
and 213 with unknown origin.
Total article views: 3,699 (including HTML, PDF, and XML)
Thereof 3,521 with geography defined
and 178 with unknown origin.
Total article views: 769 (including HTML, PDF, and XML)
Thereof 734 with geography defined
and 35 with unknown origin.
We developed a methodology that generates free externally disturbed magnetic variations in ground magnetometers close to the Chilean convergent margin. Spectral analysis (~ mHz) and magnetic anomalies increased prior to large Chilean earthquakes (Maule 2010, Mw 8.8; Iquique 2014, Mw 8.2; Illapel 2015, Mw 8.3). These findings relate to microcracks within the lithosphere due to stress state changes. This physical evidence should be thought of as a last stage of the earthquake preparation process.
We developed a methodology that generates free externally disturbed magnetic variations in...
