Mining-induced earthquakes (MIEs) in underground coal mines have been a common phenomenon that easily triggers rock bursts, but the mechanism is not understood clearly. This research investigates the laws of focal mechanism and source parameters based on focal mechanism and source parameters analysis of MIEs in three frequent rock burst areas. The ...
Published in Frontiers in Earth Science
Emerging high-performance computing systems, combined with increasingly detailed 3-D Earth models and physically consistent numerical wave propagation solvers, are opening up new opportunities for urgent seismic computing. This may help, for instance, to guide emergency response teams in the wake of large earthquakes. A key component of urgent seis...
Published in Seismic Instruments
AbstractThis article, continuing the study of the powerful event of February 18, 1772, on the northern Kola Peninsula according to written sources about it (Nikonov, 2020a), provides materials and analyzes several groups of natural processes in the epicentral and adjacent areas in terms of natural manifestations of seismic disturbances with argumen...
Microseismic monitoring system is one of the effective means to monitor ground stress in deep mines. The accuracy and speed of microseismic signal identification directly affect the stability analysis in rock engineering. At present, manual identification, which heavily relies on manual experience, is widely used to classify microseismic events and...
Published in Open Geosciences
This research presents a new approach which addresses the conversion of earthquake magnitude as a supervised machine-learning problem through a multistage approach. First, the moment magnitude (M w) calculations were extended to lower magnitude earthquakes using the spectral P-wave analyses of the vertical component seismograms to improve the scali...
Published in Izvestiya, Physics of the Solid Earth
Abstract—Despite extensive research, it is still unclear, to what extent studying the parameters of weak seismicity facilitates the interpretation of the data obtained from moderate and strong earthquakes. In this paper, we analyze seismic events initiated by mine explosions at the Korobkovskoe iron ore deposit of the Kursk Magnetic Anomaly, centra...
Published in Izvestiya, Atmospheric and Oceanic Physics
AbstractThe earthquake and tsunami that occurred in 1185 in the North Azov region is considered here using the multidisciplinary approach for the first time in professional literature, based on indications from the Old Russian written source, The Tale of Igor’s Campaign. Problems such as the relationship between earthquake and tsunami, shaking inte...
Published in Journal of Earth System Science
Modelling of earthquake source locations and parameters infers seismogenesis of earthquakes. In this study, we modelled the earthquake source locations through hypocenter location algorithm using the difference in arrival time of P and S waves and source parameters through the Levenberg–Marquardt non-linear inversion method using S-wave spectra. A ...
Abstract: Nine earthquakes occured between 2005 and 2009, with magnitudes between 4.9 and 5.5, at the zone that correspond to the triple junction of the Cocos, Rivera and North America plates were relocated. Records from RESCO seismic stations were used together with records from SSN seismic network. Source parameters were estimated: source dimensi...
Published in Journal of Earth System Science
We measure source parameters for the 21 May, 2014 Bay of Bengal earthquake through inversion modeling of S-wave displacement spectra from radial–transverse–vertical (RTZ) components recorded at ten broadband stations in the eastern Indian shield. The average source parameters are estimated using estimates from seven near stations (within epicentral...
