An overview of seismic attenuation in the Charlevoix seismic zone, southern Quebec / A.M. Farahbod and J.F. Cassidy. : M183-2/9062E-PDF

"We investigate seismic attenuation characteristics of the Charlevoix Seismic Zone. This zone is located ~100 km downstream from Quebec City and is the most seismically active region of eastern Canada. We used earthquake recordings from 8 seismograph stations of the Canadian National Seismic Network (CNSN) across the region. Our dataset is comprised of 584 earthquakes recorded between 1992 and 2022 with magnitudes ranging from 2.0 to 5.4, depths from 0 to 30 km and epicentral distances of 5 to 100 km. This gives a total of 1490 high signal-to-noise (S/N) traces (S/N≥5.0) useful for Qc calculation (with a maximum ellipse parameter, a₂, of 100) across the region. …"--Abstract, page 1.

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