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On the Specificity of Obtaining and Using Geophysical Monitoring Data (in Connection with the Article by A.V. Deshchervsky the Problem of Data Quality in Regional Geophysical Monitoring) 论地球物理监测数据获取和使用的特殊性（兼谈A.V. Deshchervsky关于区域地球物理监测数据质量问题的文章）
IF 0.3
Seismic Instruments Pub Date : 2025-06-02 DOI: 10.3103/S0747923925700148
M. V. Rodkin
{"title":"On the Specificity of Obtaining and Using Geophysical Monitoring Data (in Connection with the Article by A.V. Deshchervsky the Problem of Data Quality in Regional Geophysical Monitoring)","authors":"M. V. Rodkin","doi":"10.3103/S0747923925700148","DOIUrl":"10.3103/S0747923925700148","url":null,"abstract":"<p>The differences in the metrological support, problem statement, and practice of conducting measurements and using data in a typical physical experiment and geophysical monitoring are discussed. The strong difference in metrological support in these cases is consistent with the practice of using the results obtained. Due to the specific nature of the typical problem setting and use of geophysical monitoring data, the inevitable and poorly controlled errors in these data are relatively less detrimental to the use of the data than would be the case in typical physical surveys. Geophysical monitoring tools often track the behavior of highly nonequilibrium systems, often with a subcritical behavioral pattern, which leads to great variability in their behavioral pattern. Examples of false, but at the same time statistically significant anomalies are given. The features of using statistical approaches in the analysis of nonequilibrium systems with a subcritical nature of behavior are discussed; in this case, some standard statistical approaches may be incorrect.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"60 4-6","pages":"93 - 97"},"PeriodicalIF":0.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Approach for Remote Monitoring of Destructive Processes Using Low-Amplitude Seismic Signals during Service of Large Industrial Facilities 大型工业设施服务过程中利用低振幅地震信号远程监测破坏过程的方法
IF 0.3
Seismic Instruments Pub Date : 2025-06-02 DOI: 10.3103/S0747923925700124
A. V. Liseikin, V. S. Seleznev
{"title":"Approach for Remote Monitoring of Destructive Processes Using Low-Amplitude Seismic Signals during Service of Large Industrial Facilities","authors":"A. V. Liseikin,&nbsp;V. S. Seleznev","doi":"10.3103/S0747923925700124","DOIUrl":"10.3103/S0747923925700124","url":null,"abstract":"<p>For remote monitoring of destructive processes during service of large industrial facilities, we have developed a low-cost approach for their reliable detection. It is based on low-amplitude seismic signal monitoring data. The source material comprises data from long-term real-time monitoring by highly sensitive instruments of seismic stations in the vicinity (up to 30 km) of the study object. In the technogenic component of seismic noise, low-amplitude signals are recorded as responses from mechanical oscillations (oscillation of operating equipment, natural oscillations of buildings and technical structures) of various objects. Such oscillations are characterized by certain frequencies and duration, making it possible isolate signals of some sources contained in seismic noise from others and increase the signal-to-noise ratio. The long-term monitoring results are used for retrospective data analysis and, on its basis, to determine anomalous changes in the frequencies and amplitudes of low-amplitude signals associated with destructive processes at the facility. This accounting increases the reliability of monitoring the stability of structures and operating equipment in real time, which is urgently needed to prevent breakdown and analyze the causes of emergency situations.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"60 4-6","pages":"62 - 79"},"PeriodicalIF":0.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experience in Earthquake Detection with a Distributed Fiber Optic Acoustic Sensor (DAS) Deployed on the Bottom of the Black Sea from August 25 to November 30, 2021 2021年8月25日至11月30日部署在黑海海底的分布式光纤声传感器（DAS）地震探测经验
IF 0.3
Seismic Instruments Pub Date : 2025-06-02 DOI: 10.3103/S0747923925700070
B. G. Gorshkov, D. A. Ilinskiy, D. E. Simikin, M. A. Taranov
{"title":"Experience in Earthquake Detection with a Distributed Fiber Optic Acoustic Sensor (DAS) Deployed on the Bottom of the Black Sea from August 25 to November 30, 2021","authors":"B. G. Gorshkov,&nbsp;D. A. Ilinskiy,&nbsp;D. E. Simikin,&nbsp;M. A. Taranov","doi":"10.3103/S0747923925700070","DOIUrl":"10.3103/S0747923925700070","url":null,"abstract":"<p>The practical results of earthquake detection with a distributed acoustic sensor (DAS) developed by PetroFibre LLC are reported. The operating principle of the DAS is based on interferometric detection of light resulting from Rayleigh scattering in optical fibers. The detected earthquake occurred in Iran. A fiber optic cable used as the sensitive element of the DAS was placed at the bottom of a shallow water region of the Black Sea, supervised by the Southern Branch of the Shirshov Institute of Oceanology, Russian Academy of Sciences. Gravity waves are shown to be a significant interference factor, preventing analysis of the wavefield for seismic event detection. Filtering the wavefield with a lower cutoff frequency exceeding 0.05 Hz was used to suppress the influence of the gravity waves. The specific features of the directivity pattern of the fiber optic cable as a sensitive element are considered; results are given indicating a lack of susceptibility of the cable to acoustic perturbations acting on it transversally.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"60 1-3","pages":"1 - 9"},"PeriodicalIF":0.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Seismic Quality Factor of the Lithosphere and Seismicity in the Area of the HPP Cascade of the Upper and Middle Reaches of the Vakhsh River 瓦赫什河中上游HPP梯级区岩石圈地震质量因子与地震活动性
IF 0.3
Seismic Instruments Pub Date : 2025-06-02 DOI: 10.3103/S0747923925700112
O. I. Aptikaeva
{"title":"The Seismic Quality Factor of the Lithosphere and Seismicity in the Area of the HPP Cascade of the Upper and Middle Reaches of the Vakhsh River","authors":"O. I. Aptikaeva","doi":"10.3103/S0747923925700112","DOIUrl":"10.3103/S0747923925700112","url":null,"abstract":"<p>The seismic coda wave attenuation characteristic in the area of the HPP cascade in the upper and middle reaches of the Vakhsh River was studied. The short-period coda waves of the local earthquakes, as recorded by frequency-selective seismic stations in 1958–1989, and digital seismogram data earthquakes that occurred in region since 1989 until 2021 were analyzed. A comparative analysis of seismological data obtained by analog and digital seismic stations has been carried out. The correlation of spatial inhomogeneities of the <i>S</i>-wave attenuation field with tectonics and seismicity in the area of the HPP cascade and in nearby territories is considered.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"60 4-6","pages":"51 - 61"},"PeriodicalIF":0.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seismic Risk Assessment in the Territory of Krasnodar krai 克拉斯诺达尔边疆区地震风险评估
IF 0.3
Seismic Instruments Pub Date : 2025-03-24 DOI: 10.3103/S0747923925700057
N. I. Frolova, I. P. Gabsatarova, S. P. Suchshev, N. S. Malaeva
{"title":"Seismic Risk Assessment in the Territory of Krasnodar krai","authors":"N. I. Frolova,&nbsp;I. P. Gabsatarova,&nbsp;S. P. Suchshev,&nbsp;N. S. Malaeva","doi":"10.3103/S0747923925700057","DOIUrl":"10.3103/S0747923925700057","url":null,"abstract":"<p>The aim of the study is to update the information content of the Automated Information Management System of the Russian Unified Emergency Prevention and Response in order to increase the reliability of seismic risk assessment results and ensure the safety of the population in earthquake-prone areas of the Russian Federation. The study area is Krasnodar krai, where according to review and detailed seismic zoning, possible source zones with <i>М</i><sub>max</sub> = 5.0, <i>М</i><sub>max</sub> = 5.5, <i>М</i><sub>max</sub> = 6, and <i>М</i><sub>max</sub> = 7 were identified. The relevance of this study follows from activation of seismicity in recent years in the considered area according to the detection by the network of the Geophysical Survey, Russian Academy of Sciences, of seismic events in a wide magnitude range with <i>М</i> ≥ 1, as well as a series of perceived earthquakes in May 2023 in the Tuapse region. The scientific novelty is that for the first time in the study of a single region, the results of all stages of the study are presented. Seismic hazard and seismic regime assessments are refined by analyzing moderate events with magnitudes of <i>M</i> = 3.3–4.5 from the beginning of the last century to the present, and the seismic risk indicators are computed at regional and urban levels. For the first time, we have performed a joint analysis of all obtained variables. Computer simulation was used to assess the risk parameters along with the Extremum GIS, developed with the participation of the authors. Maps of seismic risk social and economic indicators were compiled for the territory of Krasnodar krai, as well as for the city of Krasnodar, taking into account the updated data on the city building inventory.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 4-6","pages":"85 - 102"},"PeriodicalIF":0.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectral Characteristics of Ambient Noise and Shear Waves of Earthquakes in the Baikal Rift Zone 贝加尔裂谷区环境噪声和地震剪切波的频谱特征
IF 0.3
Seismic Instruments Pub Date : 2025-03-24 DOI: 10.3103/S074792392570001X
Ts. A. Tubanov, A. N. Besedina, P. A. Predein
{"title":"Spectral Characteristics of Ambient Noise and Shear Waves of Earthquakes in the Baikal Rift Zone","authors":"Ts. A. Tubanov,&nbsp;A. N. Besedina,&nbsp;P. A. Predein","doi":"10.3103/S074792392570001X","DOIUrl":"10.3103/S074792392570001X","url":null,"abstract":"<p>Comparison of the spectral characteristics of ground vibrations from earthquakes with the level of seismic ambient noise in a wide range of periods makes it possible to assess the possibilities of seismic networks, taking into account the local conditions for the location of seismic stations. Based on the probabilistic approach, which allows one to estimate the statistical parameters of seismic variations in the frequency domain, a model of seismic ambient noise for the southeastern shore of Lake Baikal was developed. The study of the spectral characteristics of seismic waves was carried out on the basis of records of earthquakes in the Baikal rift zone with 3.5 ≤ <i>M</i> ≤ 6.9 that occurred during 2017–2022. The spectral characteristics of shear waves from earthquakes were calculated using bandpass filtering in nonoverlapping octave bands. Comparison of the calculated spectral characteristics of seismic vibrations from earthquakes with seismic ambient noise model made it possible to evaluate the possibilities of three broadband seismic stations. The approach can be used to select optimal equipment in terms of its characteristics, taking into account the local conditions for the location of stations.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 4-6","pages":"103 - 115"},"PeriodicalIF":0.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Algorithm of Microseism Processing by the H/V Method to Estimate the Parameters of a Two-Layer Velocity Model Based on Surface Rayleigh Wave Ellipticity 基于表面瑞利波椭圆度的两层速度模型参数估计的H/V法微震处理算法
IF 0.3
Seismic Instruments Pub Date : 2025-03-24 DOI: 10.3103/S0747923925700021
A. V. Yablokov, P. A. Dergach, A. V. Liseikin, A. S. Serdyukov
{"title":"Algorithm of Microseism Processing by the H/V Method to Estimate the Parameters of a Two-Layer Velocity Model Based on Surface Rayleigh Wave Ellipticity","authors":"A. V. Yablokov,&nbsp;P. A. Dergach,&nbsp;A. V. Liseikin,&nbsp;A. S. Serdyukov","doi":"10.3103/S0747923925700021","DOIUrl":"10.3103/S0747923925700021","url":null,"abstract":"<p>The research develops the <i>H</i>/<i>V</i> method by designing a microseismic data processing workflow, which includes prefiltering, summation of amplitude spectra, calculation of the component spectrum ratio (<i>H</i>/<i>V</i> curve) and its inversion based on surface Rayleigh wave ellipticity curves. As a result of the algorithm, the resonance frequencies values, depth of the top of the bedrock, and <i>S</i>-wave velocity in the soil and bedrock are determined, tolerant to noise at the point of measurement. The search ranges of the solution to the inverse problem are evaluated using the results of processing active seismic data on refracted and surface waves. As a result of processing the <i>H</i>/<i>V</i> curves, distribution maps of the reconstructed parameters for the entire area of the vibroseismic test site near the settlement of Bystrovka, Novosibirsk oblast, are constructed. The depth of the top of the bedrock, calculated by different seismic methods, are highly correlated with each other. The distribution maps of the reconstructed parameters may apply for studying the near-surface section, estimating the depth of the top of the bedrock, determining the incremental seismic intensity by the seismic impedance method, or calculating synthetic earthquake accelerograms.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 4-6","pages":"116 - 126"},"PeriodicalIF":0.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calibration of the Extremum System: Preliminary Results for the February 6, 2023, Destructive Turkey Earthquake: Impact and Assessment 校准 Extremum 系统：2023 年 2 月 6 日土耳其破坏性地震的初步结果：影响与评估
IF 0.3
Seismic Instruments Pub Date : 2025-03-24 DOI: 10.3103/S0747923925700045
N. I. Frolova, I. P. Gabsatarova, S. P. Sushchev, N. S. Malaeva
{"title":"Calibration of the Extremum System: Preliminary Results for the February 6, 2023, Destructive Turkey Earthquake: Impact and Assessment","authors":"N. I. Frolova,&nbsp;I. P. Gabsatarova,&nbsp;S. P. Sushchev,&nbsp;N. S. Malaeva","doi":"10.3103/S0747923925700045","DOIUrl":"10.3103/S0747923925700045","url":null,"abstract":"<div><p>The article reports the use of intensity attenuation equations for the territory of Turkey by modeling the impact of the most powerful destructive earthquake of February 6, 2023, in southeastern Turkey. The relevance of the study follows from the needed reliable estimates of possible loss due to earthquakes in order to aid the decision making process for the response and proper choice of a search and rescue strategy for heavily affected populated areas. The aim of the study is to calibrate the Extremum system models for southeastern Turkey. Our study is the first to analyze the seismic intensity attenuation equations obtained by researchers at different times with a view to their applicability to near real time loss assessment for powerful events occurring in the study area. We investigate how the results of seismic attenuation modeling are affected by macroseismic field orientation, the ellipse compression factor <i>k</i>, and the source parameters of a powerful event as determined by different seismological agencies in the alert mode. Computer simulation was applied to assess possible impact due to the February 6, 2023, earthquake using the Extremum system developed with our participation. The article provides preliminary results of modeling the impact of the Turkey earthquake, as well as an assessment of the convergence achieved by the calculated and observed intensities for various input data options.</p></div>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 4-6","pages":"63 - 84"},"PeriodicalIF":0.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a System of Comprehensive Instrumental Observations of Geophysical Fields at the Moscow Center of Geophysical Monitoring (Institute of Geosphere Dynamics, Russian Academy of Sciences) 莫斯科地球物理监测中心（俄罗斯科学院地球圈动力学研究所）地球物理场综合仪器观测系统的研制
IF 0.3
Seismic Instruments Pub Date : 2025-03-06 DOI: 10.3103/S0747923924700038
Yu. S. Rybnov, A. V. Krasheninnikov, D. N. Loktev, S. Yu. Rybnov, S. P. Solovyov, A. A. Spivak
{"title":"Development of a System of Comprehensive Instrumental Observations of Geophysical Fields at the Moscow Center of Geophysical Monitoring (Institute of Geosphere Dynamics, Russian Academy of Sciences)","authors":"Yu. S. Rybnov,&nbsp;A. V. Krasheninnikov,&nbsp;D. N. Loktev,&nbsp;S. Yu. Rybnov,&nbsp;S. P. Solovyov,&nbsp;A. A. Spivak","doi":"10.3103/S0747923924700038","DOIUrl":"10.3103/S0747923924700038","url":null,"abstract":"<p>In order to determine how large urban agglomerations affect the biosphere, the Moscow Geophysical Monitoring Center (part of the Institute of Geosphere Dynamics, Russian Academy of Sciences) has been operating since 2014. The center organizes the continuous instrumental observations of geophysical fields and meteorological parameters in the near-surface atmosphere. The data obtained in the denter allow the specialists to assess the negative effects of the Moscow megalopolis on the environment, in particular, to reveal the sources of artificial disturbances in the geophysical fields. Taking into account that the new problems have emerged and that there is the necessity to expand the technical capabilities of the center, an upgrade was done in 2021–2022: the list of recording instruments was expanded and the observation methods and data analysis were updated.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 1-3","pages":"10 - 20"},"PeriodicalIF":0.3,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Digital Platform for Integrated Geophysical Investigations in the Baikal Region 贝加尔湖地区综合地球物理调查数字平台
IF 0.3
Seismic Instruments Pub Date : 2025-03-06 DOI: 10.3103/S0747923924700063
L. P. Braginskaya, A. P. Grigoryuk, V. V. Kovalevsky, A. A. Dobrynina
{"title":"Digital Platform for Integrated Geophysical Investigations in the Baikal Region","authors":"L. P. Braginskaya,&nbsp;A. P. Grigoryuk,&nbsp;V. V. Kovalevsky,&nbsp;A. A. Dobrynina","doi":"10.3103/S0747923924700063","DOIUrl":"10.3103/S0747923924700063","url":null,"abstract":"<p>A description of the software and main services of the digital Internet platform (DP) for complex geophysical monitoring of hazardous geological processes in the Baikal rift system is presented. The DP is a client-server application with a web interface. The practical result of the work is detection of precursors during the preparation of the Kudara earthquake (December 9, 2020). The DP makes it possible to provide information support for geophysical monitoring tasks, performing the complex task of integrating and analyzing data coming from several geophysical sites in the Baikal region in order to assess the state of the geological environment and predict the manifestations of hazardous processes.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"59 1-3","pages":"54 - 62"},"PeriodicalIF":0.3,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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