Recovery of the seismogram and generation of the semi- synthetic accelerogram for bahía of caraquez earthquake (ms = 7.2)

Marcelo Moncayo Theurer

Resumen


The Bahía de Caráquez earthquake occurred on August of 1998. This is the most important seismic event in Ecuador in recent years. The seismograms recorded were cut at the peak points because the accelerations overcame the maximum value that was settled for the sensor.
The Reduced Intersection Method is proposed to reconstruct the cut portion of the seismograms. The method is tested with of Bahía de Caráquez earthquake, cutting intentionally its accelerograms for afterward, reconstructing them. The results are filtered to eliminate ambiental noise and elastic spectras are constructed to compare the results.

Palabras clave


Seismogram; Reduced Intersection Method; Bahía de Caráquez earthquake.

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Referencias


Fernandez J., Yepez H., “The Bahía de Caráquez, Ecuador, Earthquake of August 4, 1998”, Earthquake Engineering Research Institute (EERI), project: learning from earthquakes, web page, 1998.

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Kalman R.E., “New methods in Wiener filtering theory”, Proceedings of the first symposium on engineering applications of random function theory and probability, (September 1962): 270-388.

Bahía de Caráquez records, Universidad Católica de Guayaquil, seismograms, 1998.

Moncayo M., “Web Master 2000 vs.1.0”, software, Tokyo University, IIS, Ohi Lab, Tokyo,2000.




DOI: https://doi.org/10.23878/alternativas.v17i3.213

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