Influence of seismic activity on the atmospheric electric field in Lisbon (Portugal) from 1955 to 1991

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Hugo Gonçalves Silva
Maria Manuela Oliveira
Cláudia Serrano
Mourad Bezzeghoud
António Heitor Reis
Rui Namorado Rosa
Pier Francesco Biagi

Abstract

In the present study, we considered the influence of seismic activity on the atmospheric electric field recorded at Portela meteorological station (Lisbon, Portugal) for the period from 1955 to 1991. To this end, an exploratory method was developed, which involved the selection of events for which the distance from the atmospheric electrical field sensor to the earthquake epicenter is smaller than the preparation radius of the event. This enabled the correlation of the atmospheric electric field variations with a quantity S, defined basically as the ratio of the earthquake preparation radius to the distance between the sensor and the event epicenter. The first results show promising perspectives, but clearly a more profound study is required, in which a careful analysis of the weather conditions and other variables, like atmospheric radon levels, must be considered.


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How to Cite
1.
Silva HG, Oliveira MM, Serrano C, Bezzeghoud M, Reis AH, Rosa RN, Biagi PF. Influence of seismic activity on the atmospheric electric field in Lisbon (Portugal) from 1955 to 1991. Ann. Geophys. [Internet]. 2012Apr.24 [cited 2021Sep.25];55(1). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5361
Section
EARTHQUAKE PRECURSORS / Special Issue ed. by P.F. Biagi, M.E. Contadakis, M. Hayakawa and T. Maggipinto

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