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Title: SYNCHRONIZATION OF MICRO-SEISMIC NOISE AND ITS STATISTICAL PARAMETERS BEFORE RIDGECREST EARTHQUAKE M7.1 ON 6-TH OF JULY 2019
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SYNCHRONIZATION OF MICRO-SEISMIC NOISE AND ITS STATISTICAL PARAMETERS BEFORE RIDGECREST EARTHQUAKE M7.1 ON 6-TH OF JULY 2019
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1314-2704
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English
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20
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1.2
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We analyze the micro-seismic noise recorded at five seismic stations ? DEC, DJJ, FMP, MWC and RPV. They operate within CI: Southern California Seismic Network
(SCSN), USA. The data set is collected from 01 July 2018 till 31 July 2019 and all seismic events with a magnitude Mw?4 are excluded. Our main goal is to find the effects of seismic noise synchronization between different seismic stations using data relevant to the vertical seismic components. The width of the multifractal spectrum, the spectral exponent and Hurst exponent are determined, analyzed and discussed. About 150 days before Ridgecrest earthquake M7.1, the onset of low-frequency synchronization between all analyzed seismic stations is observed, rising to high frequencies as the earthquake approaches. Also a stable level of increasing coherence is observed which begins 70 days before the earthquake happened and remains at a relatively high level until the earthquake. There is an unusual and extremely increasing of Hurst and the spectral exponents 50 days before the earthquake. Our study is an independent confirmation of scientific results obtained by other authors. |
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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639-646
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18 - 24 August, 2020
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website
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cdrom
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6938
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earthquake; multifractal spectrum; coherence; seismic network
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