TY - JOUR

T1 - Enhancing the Sensitivity of the Seismological Network in the Lena River Delta

AU - Ponasenko, S. N.

AU - Dergach, P. A.

AU - Duchkov, A. A.

N1 - This work was supported by the Russian Science Foundation, project no. 23-17-00237 “The Study of Seismotectonics and Lithosphere Structure in the Junction Zone between the Laptev Sea Rift System and the Siberian Craton”.

PY - 2025/8/19

Y1 - 2025/8/19

N2 - Abstract: The present paper reports a study and refinement of quality parameters for data acquired using the seismological network in the area of the Lena R. delta. The main estimated metrics were chosen to be sensitivity and azimuthal gap between neighboring stations. For assessing scenarios to be used in the deployment of network stations we chose the area where we estimated mean sensitivity as having the highest priority, and mean azimuthal gap. We planned the station locations so as to optimize the network sensitivity with an eye to ensuring that the mean azimuthal gap should be below 180°. This assessment of the current arrangement resulted in the decision to dismantle the SML09 station to transfer the equipment to a more promising location. In addition, we propose a scenario for the deployment of additional stations increasing the mean sensitivity by 0.49 in the area of interest. This would result in the number of recorded earthquakes increasing by a factor of 2.08, as follows from the Gutenberg–Richter relation.

AB - Abstract: The present paper reports a study and refinement of quality parameters for data acquired using the seismological network in the area of the Lena R. delta. The main estimated metrics were chosen to be sensitivity and azimuthal gap between neighboring stations. For assessing scenarios to be used in the deployment of network stations we chose the area where we estimated mean sensitivity as having the highest priority, and mean azimuthal gap. We planned the station locations so as to optimize the network sensitivity with an eye to ensuring that the mean azimuthal gap should be below 180°. This assessment of the current arrangement resulted in the decision to dismantle the SML09 station to transfer the equipment to a more promising location. In addition, we propose a scenario for the deployment of additional stations increasing the mean sensitivity by 0.49 in the area of interest. This would result in the number of recorded earthquakes increasing by a factor of 2.08, as follows from the Gutenberg–Richter relation.

KW - Lena River delta

KW - North Yakutia

KW - optimizing the seismological network geometry

KW - seismicity

KW - seismological network

KW - sensitivity

UR - https://www.mendeley.com/catalogue/877adf07-b41f-376c-a2d1-d51c3e790ea5/

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105013637098&origin=inward

U2 - 10.1134/S0742046325700162

DO - 10.1134/S0742046325700162

M3 - Article

VL - 19

SP - 390

EP - 396

JO - Journal of Volcanology and Seismology

JF - Journal of Volcanology and Seismology

SN - 0742-0463

IS - 4

ER -