Magnitude of completeness, b-value, and spatial correlation dimension of earthquakes in the South Baikal Basin, Baikal Rift System

Радзиминович, Н. А.; Мирошниченко, А. И.; Зуев, Ф. Л.

doi:10.1016/j.tecto.2019.04.002

Cited by 23 publications

(6 citation statements)

References 67 publications

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“…where 𝑀𝑀 � is Magnitude of Completeness, define as the lowest magnitude can be detected completely in the a space-time volume [15,16,17]. The Magnitude of Completeness is a statistical way to determine the quality of an earthquake catalog [18].…”

Section: Theorymentioning

confidence: 99%

Earthquake statistical performance due to increasing of the seismic network around Opak Fault, Yogyakarta

Fauzi Masykuri,

Setyo Yuliatmoko,

Dairoh

et al. 2023

E3S Web Conf.

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The seismic event in May 2006 underscored the critical necessity of continuous earthquake monitoring. Observational enhancement through adding more stations is very crucial to obtain a more refined data quality. From January 2009 to September 2019, BMKG PGR (Pusat Gempa Regional/Regional Earthquake Centre) VII documented approximately 1847 seismic events with magnitudes from 0.9 to 4.9. With the integration of additional seismic station into the array by December 2022, there was a notable increase of 1418 recorded events in the same magnitude interval. The earthquake observation average is increasing as well, from 15.4 events in a month to 20.5 events in a month. This study leverages this data to assess the impact of augmenting seismic stations proximal to the Opak Fault on seismicity parameters within that region. Employing ZMAP 6.0, a comparative analysis of seismicity parameters was conducted between the earthquake catalog from January 2009 to September 2019 and the expanded catalog from January 2009 to December 2022. Declustering process result 1790 and 3141 main earthquake events in each catalog. This research indicate that the inclusion of more stations significantly influences the Mc value and earthquake density, however, it does not have a significant effect on the b and a-value.

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Section: Theorymentioning

confidence: 99%

Earthquake statistical performance due to increasing of the seismic network around Opak Fault, Yogyakarta

Fauzi Masykuri,

Setyo Yuliatmoko,

Dairoh

et al. 2023

E3S Web Conf.

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“…It gives information dimension for q=1, and correlation dimension for q=2 (Roy & Padhi, 2007). Therefore, for q = 0, the formula reduces to 𝐷 0 = − lim 𝑟→0 log 𝐶 𝑞 (𝑟) log 𝑟 The above formula is similar to the box counting technique (Aggarwal et al, 2017;Mandal & Rodkin, 2011;Radziminovich et al, 2019) as…”

Section: Fractal Distributionmentioning

confidence: 99%

Box Counting Fractal Dimension and Frequency Size Distributon of Earthquakes in the Central Himalaya Region

Tiwari

Paudyal

2021

J. Inst. Sci. Tech.

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To establish the relations between b-value and fractal dimension (D0) for the earthquake distribution, we study the regional variations of those parameters in the central Himalaya region. The earthquake catalog of 989 events (Mc = 4.0) from 1994.01.31 to 2020.10.28 was analyzed in the study. The study region is divided into two sub-regions (I) Region A: 27.3°N -30.3°N and 80°E -84.8°E (western Nepal and vicinity) and (II) Region B: 26.4°N -28.6°N and 84.8°E -88.4°E (eastern Nepal and vicinity). The b-value observed is within the range between 0.92 to 1.02 for region A and 0.64 to 0.74 for region B showing the homogeneous nature of the variation. The seismic a-value for those regions ranges respectively between 5.385 to 6.007 and 4.565 to 5.218. The low b-values and low seismicity noted for region B may be related with less heterogeneity and high strength in the crust. The high seismicity with average b-values obtained for region A may be related with high heterogeneity and low strength in the crust. The fractal dimension ≥1.74 for region A and ≥ 1.82 for region B indicate that the earthquakes were distributed over two-dimensional embedding space. The observed correlation between D0 and b is negative for western Nepal and positive for eastern Nepal while the correlation between D0 and a/b value is just opposite for the respective regions. The findings identify both regions as high-stress regions. The results coming from the study agree with the results of the preceding works and reveal information about the local disparity of stress and change in tectonic complexity in the central Himalaya region.

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“…One of the reasons for this deviation is inadequate data acquisition. At the lower magnitude end, this is apparent from the difficulty in determining the magnitude of completeness, Mc (Cao & Gao, 2002;Godano et al, 2014;Mignan, 2012;Radziminovich et al, 2019;Raub et al, 2017). Meanwhile, small-scale ruptures can be masked by larger ones, which is also a very significant factor for inadequate data acquisition in rock AE experiments when avalanche destruction occurs during the final loading stage or in high strain rate loading tests (Cox & Meredith, 1993;Liakopoulou et al, 1994;Liu et al, 2015Liu et al, , 2020Meredith & Main, 1990).…”

Section: Deviation From the G-r Law Of Frequency-size Distributionmentioning

confidence: 99%

A New b Value Estimation Method in Rock Acoustic Emission Testing

Liu

Han

et al. 2020

JGR Solid Earth

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Magnitude of completeness, b-value, and spatial correlation dimension of earthquakes in the South Baikal Basin, Baikal Rift System

Cited by 23 publications

References 67 publications

Earthquake statistical performance due to increasing of the seismic network around Opak Fault, Yogyakarta

Earthquake statistical performance due to increasing of the seismic network around Opak Fault, Yogyakarta

Box Counting Fractal Dimension and Frequency Size Distributon of Earthquakes in the Central Himalaya Region

A New b Value Estimation Method in Rock Acoustic Emission Testing

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