EGU2020-4885
https://doi.org/10.5194/egusphere-egu2020-4885
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

The attenuation of coda waves in the RIF area.

Oussama Arab1,2, mimoun harnafi2, Ibrahim ouchen2, roumaissae azguet2, younes El Fellah3, and sebbani Jamal1
Oussama Arab et al.
  • 1Faculty of Science Rabat, Mohamed V university, Morocco
  • 2Scientific Institute, Mohamed V university, Morocco
  • 3Rural Engineering Department, Institut agronomique et vétérinaire hassan II, Rabat, Morocco

This work is presenting the attenuation of coda waves in the Rif region. Using 15 broadband stations, we investigate the attenuation of coda waves utilizing the single backscattering model of aki and chouet. We collect 70 local earthquakes during 2014 for five laps time window 20, 30, 40, 50 and 60s. We computed the quality factors at different central frequencies band on which start from 1.5, 3.0, 6.0, 9.0, 12.0 and 18.0 Hz. For 40s window length, the Qc gives average value for the whole zone of about 128,51 for 1.5 Hz and 993,44 for 18 Hz band frequencies. We observed a clear dependency between the quality factor and the frequency. Also, we have found that this region is tectonic active comparing to previous studies around the world.

How to cite: Arab, O., harnafi, M., ouchen, I., azguet, R., El Fellah, Y., and Jamal, S.: The attenuation of coda waves in the RIF area., EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-4885, https://doi.org/10.5194/egusphere-egu2020-4885, 2020

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