SEISMO-ELECTROMAGNETIC PHENOMENA IN TECTONICALLY ACTIVE REGIONS

• Author(s): Silva, H.G. ; Bezzeghoud, M. ; Biagi, P.F. ; Tlemçani, M. ; Rosa, R. ; Reis, A.H. ; Salgueira, M.A. ; Caldeira, B. ; Borges, J.F. ; Manso, M.
• Date: 2010
• Persistent ID: http://hdl.handle.net/10174/6349
• Origin: Repositório Científico da Universidade de Évora
• Subject(s): Seismo-electromagnetic signals; earthquakes; Electrical properties of rocks
• Document Type: Article
• Language: Portuguese
• Editor(s): Oliveira, C.S.; Costa, A.; Varum, H.

Description

This work presents a research plan that aims to monitor seismo-electromagnetic signals in seismic active regions. Two effects will be considered: electromagnetic field emissions and radio broadcastings. Our study will be focused in the analysis of low magnitude earthquakes almost completely disregarded in literature. We aim to collect novel seismo-electromagnetic emission data emerging from seismic activity. We expect to address the time variation of electromagnetic properties of the crust in relation with the strain field and complement it with the development of proper models. Experimental studies based on the electrical properties of rocks will also be done aiming the understanding of pressure stimulated currents and voltages that produce detectable electromagnetic radiation and can be a cause for seismo-electromagnetic signals.