About seismic observations on Sakhalin with the use of molecular-electronic seismic sensors of new type

3rd National scientific conference with foreign participants "Geodynamical Processes and Natural Hazards"

生态环境科学

Kostylev, D.V.^1^2 ; Bogomolov, L.M.^2 ; Boginskaya, N.V.^2

Sakhalin Branch, Geophysical Survey, Russian Academy of Sciences, Yuzhno-Sakhalinsk

693010, Russia^1

Institute of Marine Geology and Geophysics Far Eastern Branch of Russian Academy of Science, Nauki st. 1B, Yuzhno-Sakhalinsk

693022, Russia^2

关键词: Acoustic emission signal;    Frequency spectra;    Geophysical observations;    Hydrophone stations;    Molecular electrons;    Operation and maintenance;    Seismic observation;    Seismic signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/324/1/012009/pdf
DOI  :  10.1088/1755-1315/324/1/012009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

To conduct complex geophysical observations in the area of the Central Sakhalin Fault, an experimental geophysical test site was created, including a broadband molecular electronic type station and a new development of the Molecular Electronics Center-molecular electronic hydrophone. A module for placing a molecular-electronic seismometer at the test site has been developed and arranged. The noise level of the seismometer was analyzed and compared with the reference data. The results of hydroacoustic observations of weak earthquakes in the area of the Central-Sakhalin fault using a molecular-electron hydrophone are presented. The characteristics of the recorded acoustic emission signals from earthquakes perceived by the hydrophone station (frequency spectrum, arrival times of seismic waves) are investigated. The issues of operation and maintenance of molecular-electronic sensors with seismic signal data logger at various stages of seismological observations (setting up equipment, acquisition and storing data) were considered. The analysis of recording capabilities of seismic equipment was performed. Conclusions about the advantages and disadvantages of molecular-electronic sensors and their use on Sakhalin are made.