N. K. Kapustian, E. V. Shakhova, G. N. Antonovskaya
{"title":"New Opportunities for Epicentral Seismic Observations","authors":"N. K. Kapustian, E. V. Shakhova, G. N. Antonovskaya","doi":"10.3103/S0747923922060068","DOIUrl":null,"url":null,"abstract":"<p>This study considers the hardware and methodological possibilities for increasing the information content of seismological observations in the epicentral zone of a platform earthquake without obvious surface manifestations. It is shown that the microseismic background analysis conducted during the installation of several seismic stations is efficient for both identifying the source location and refining the geodynamic features of the environment in the epicentral zone. The results of the coherent-time analysis of recordings at the three-component registration made to identify endogenous microcracks hidden by microseismic noise are presented. Their power, number, and azimuths are calculated. The possibility of using an autostructural function for the time series of a stream of micropulses at long-term recording of microseisms is shown to identify the self-organization of crustal blocks by similarities in their geodynamics. The requirements for the seismic equipment necessary for the observations are discussed.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Seismic Instruments","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S0747923922060068","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 2
Abstract
This study considers the hardware and methodological possibilities for increasing the information content of seismological observations in the epicentral zone of a platform earthquake without obvious surface manifestations. It is shown that the microseismic background analysis conducted during the installation of several seismic stations is efficient for both identifying the source location and refining the geodynamic features of the environment in the epicentral zone. The results of the coherent-time analysis of recordings at the three-component registration made to identify endogenous microcracks hidden by microseismic noise are presented. Their power, number, and azimuths are calculated. The possibility of using an autostructural function for the time series of a stream of micropulses at long-term recording of microseisms is shown to identify the self-organization of crustal blocks by similarities in their geodynamics. The requirements for the seismic equipment necessary for the observations are discussed.
期刊介绍：
Seismic Instruments is a journal devoted to the description of geophysical instruments used in seismic research. In addition to covering the actual instruments for registering seismic waves, substantial room is devoted to solving instrumental-methodological problems of geophysical monitoring, applying various methods that are used to search for earthquake precursors, to studying earthquake nucleation processes and to monitoring natural and technogenous processes. The description of the construction, working elements, and technical characteristics of the instruments, as well as some results of implementation of the instruments and interpretation of the results are given. Attention is paid to seismic monitoring data and earthquake catalog quality Analysis.
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