EGU23-11047, updated on 26 Feb 2023
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Characteristics of microseismicity in the Kiskatinaw area, northeastern British Columbia, Canada

Suhee Park1, Dabeen Heo1, Tae-Seob Kang1, Junkee Rhie2, Seongryong Kim3, and Jan Dettmer4
Suhee Park et al.
  • 1Division of Earth Environmental System Sciences, Pukyong National University, Busan, Republic of Korea (
  • 2School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of Korea
  • 3Department of Earth and Environmental Sciences, Korea University, Seoul, Republic of Korea
  • 4Department of Geoscience, University of Calgary, Calgary, Alberta, Canada

Since the early 2000s, lots of induced earthquakes have occurred due to fluid-injection during the development of unconventional resources at the Kiskatinaw Seismic Monitoring and Mitigation Area (KSMMA) located in northeastern British Columbia, Canada. The spatial-temporal distribution of microearthquakes induced by fluid-injection are important to understand the characteristics of crack and movement of fluid. Also, to mitigate earthquake disasters, it is essential to continuously monitor microearthquakes in fluid-injection areas. We used the seismic data recorded at the EON-ROSE seismic network, which is a dense seismic network consisting of 16 broadband seismic stations, and GSC-BCOGC seismic network to analyze the characteristics of microseismicity of the KSMMA in 2020. We detected the seismic signal (P- and S-wave) using the automatic seismic phase detection method, which is based on the short-term-average to long-term-average ratio (STA/LTA) and kurtosis. And then, we associated the seismic phase arrival data to combine to earthquakes from the automatic seismic phase association method using the temporal distribution of the detected signals and the spatial distribution of the seismic stations used. The hypocenter parameters of associated earthquakes were determined with the HYPOINVERSE location algorithm and the existing 1-D velocity model of KSMMA. The epicenter distributions of the detected earthquakes are concentrated in the area known as active fluid-injection, and the focal depths are also distributed at about 2 km. We analyzed the seismicity by dividing it with three periods based on COVID-19 lockdown and confirmed the low-seismicity of the lockdown period, which is consistent with the result of the independent study performed at the region.

How to cite: Park, S., Heo, D., Kang, T.-S., Rhie, J., Kim, S., and Dettmer, J.: Characteristics of microseismicity in the Kiskatinaw area, northeastern British Columbia, Canada, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-11047,, 2023.

Supplementary materials

Supplementary material file