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Earth Sciences Research Journal
versão impressa ISSN 1794-6190
Resumo
SOLANO FINO, Juan Manuel; CANEVA, Alexander; VARGAS, Carlos Alberto e OCHOA, Luis Hernán. Electrical and magnetic data time series' observations as an approach to identify the seismic activity of non-anthropic origin. Earth Sci. Res. J. [online]. 2021, vol.25, n.3, pp.297-307. Epub 05-Mar-2022. ISSN 1794-6190. https://doi.org/10.15446/esrj.v25n3.95782.
In this study, the authors worked on identifying a possible relationship between electromagnetic signals (EM) and seismic events in the lithospheric system in the central region of Colombia. The data, both seismic records and electromagnetic signals, were taken from the catalog of the Seismological Network of the National University of Colombia (RSUNAL) and the catalog of the National Seismological Network of Colombia (RSNC). The project included the design and instrument testing phases for recording seismic signals, electrical potential variations, and magnetic field variations to try to identify possible relationships between these signals. Possible electromagnetic precursors for seismic events were observed, mainly magnetic disturbances, but it was not possible to locate evident electrical anomalies (Seismic Electric Signals - SES). Thus, although the results are not conclusive, the magnetic disturbances identified deserve further long-term analysis.
Palavras-chave : 3Earthquake; Precursor; Electromagnetic signal; SES; Colombia.