Posible relación entre señales electromagnéticas de origen no antrópico y eventos sísmicos, en la Sabana de Bogotá y alrededores
Possible relationship between electromagnetic signals of non-antropic origin and seismic events, in the Sabana de Bogotá and surroundings
Keywords:
sismo, pronóstico, Precursor, Señal electromagnética (es)Earthquake, Forecast, Precursor, Electromagnetic Signal (en)
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El presente trabajo busca establecer una posible relación entre señales electromagnéticas (EM) y eventos sísmicos que ocurren en el sistema litosférico en la región central de Colombia. La relación de eventos se realizó con datos provenientes de la Red Sismológica de la Sabana de Bogotá (RSSB), de una red sismológica temporal desplegada en Chichimene (Acacías, Meta) y de la Red Sismológica Nacional de Colombia. El proyecto contempló las fases de diseño y pruebas de desempeño de instrumentos de registro de señales sísmicas, variaciones de potencial eléctrico y variaciones del campo magnético, para, luego, intentar identificar relaciones entre dichas señales. Dentro de los principales hallazgos se encontró una ausencia casi completa de perturbaciones eléctricas visibles, conocidas como Señales Eléctricas Sísmicas (SES) y muy pocas de tipo magnético. Sin embargo, otro tipo de perturbaciones magnéticas identificadas, son prometedoras para análisis a largo plazo.
The present work seeks to establish a possible relationship between electromagnetic signals (EM) and seismic events that occur in the lithospheric system in the central region of Colombia. The relationship of events was made with data from the the Sabana de Bogotá Seismological Network (RSSB), a temporary seismological network deployed in Chichimene (Acacías, Meta) and the National Seismological Network of Colombia. The project considered the phases of design and performance tests of seismic signal recording instruments, variations of electric potential and variations of the magnetic field, to then try to identify relationships between these signals. Among the main findings was an almost complete absence of visible electrical disturbances, known as Seismic Electrical Signals (SES) and very few magnetic ones. However, another type of magnetic perturbations were identified, which are promising for long-term analysis.
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