Izvestiya, Physics of the Solid Earth最新文献_第4页

Analysis of Spatial Clustering of Seismic Events in the Northwest Pacific Ocean 西北太平洋地震事件空间聚类分析

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700733

A. S. Agaian, A. K. Nekrasova

引用次数: 0

Database of Earthquake Focal Mechanisms for the East Arctic Region 东北极地区地震重点机制数据库

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700873

A. I. Filippova, I. S. Burlakov, A. S. Fomochkina

{"title":"Database of Earthquake Focal Mechanisms for the East Arctic Region","authors":"A. I. Filippova, I. S. Burlakov, A. S. Fomochkina","doi":"10.1134/S1069351324700873","DOIUrl":"10.1134/S1069351324700873","url":null,"abstract":"In this paper, we present a description of a database of earthquake focal mechanisms, which is compiled from the data of international seismological agencies and literature sources for the East Arctic region. It consists of 595 focal mechanism solutions for 273 seismic events with M = 2.1–7.6, which occurred in 1927–2022. Information about the source depth, the scalar seismic moment, and the moment magnitude are also presented there for many events. In addition to the focal parameters, their quality assessments are available, which facilitates a comparison of different solutions in many cases. For user convenience, the database has a graphical interface that permits searching by various attributes (coordinates, time, magnitude, and depth). In terms of volume of the collected information, our database significantly exceeds all the analogues available at the present time. It can be used to perform a seismotectonic analysis, to estimate the stress–strain state of the lithosphere, and to assess seismic hazard for the entire East Arctic region or its separate areas. Implementation of the compiled database for comparison of different solutions of earthquake focal mechanisms and their seismotectonic analysis is illustrated in the paper on the example of seismic events occurred in the Olenek Bay of the Laptev Sea and adjacent territories. We suggest adding new information to the database every five years in future.","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"60 5","pages":"960 - 972"},"PeriodicalIF":0.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Limits of Applicability of the Gutenberg–Richter Law in the Problems of Seismic Hazard and Risk Assessment 古腾堡-里希特定律在地震危害和风险评估问题中的适用范围

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700757

K. V. Krushelnitskii, P. N. Shebalin, I. A. Vorobieva, O. V. Selyutskaya, A. O. Antipova

{"title":"The Limits of Applicability of the Gutenberg–Richter Law in the Problems of Seismic Hazard and Risk Assessment","authors":"K. V. Krushelnitskii, P. N. Shebalin, I. A. Vorobieva, O. V. Selyutskaya, A. O. Antipova","doi":"10.1134/S1069351324700757","DOIUrl":"10.1134/S1069351324700757","url":null,"abstract":"Abstract—The Gutenberg–Richter law establishes a log-linear relationship between the number of earthquakes that have occurred within some spatiotemporal volume and their magnitude. This similarity property presumably reflects fractal structure of the fault system in which earthquake sources are formed. The Gutenberg–Richter law plays a key role in the problems of seismic hazard and risk assessment. Using the Gutenberg–Richter relationship, we can estimate the average recurrence period of strong earthquakes from the recurrence rate of weaker earthquakes. Since the strongest earthquakes occur infrequently, with intervals of a few hundred years or more, it is not possible to directly assess their recurrence. From indirect geologic and paleoseismic estimates it often seems that strong earthquakes on individual faults occur more frequently than expected in accordance with the Gutenberg–Richter law. Such estimates underlie the hypothesis of the so-called characteristic earthquakes. This hypothesis is in many cases additionally supported by the form of the magnitude–frequency distributions for individual faults, constructed from the data of modern earthquake catalogs. At the same time, an important factor affecting the form of the magnitude–frequency distribution is the choice of the spatial domain in which the distribution is constructed. This paper investigates the influence of this factor and determines the conditions under which the Gutenberg–Richter law is applicable for estimating the recurrence of strong earthquakes.","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"60 5","pages":"823 - 835"},"PeriodicalIF":0.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1069351324700757.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantiles of Мmax and Other Characteristics of the Seismic Field Used in the Compilation of General Seismic Zoning (GSZ) Maps 用于编制一般地震区划图（GSZ）的 Мmax 量值和地震带的其他特征

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700769

V. F. Pisarenko

引用次数: 0

The Fine Structure of Coseismic Electromagnetic Response Based on Geomagnetic and Seismological Observations 基于地磁和地震观测的同震电磁响应精细结构

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700812

A. A. Soloviev, I. M. Aleshin, S. V. Anisimov, A. G. Goev, A. N. Morozov, E. N. Solovieva

{"title":"The Fine Structure of Coseismic Electromagnetic Response Based on Geomagnetic and Seismological Observations","authors":"A. A. Soloviev, I. M. Aleshin, S. V. Anisimov, A. G. Goev, A. N. Morozov, E. N. Solovieva","doi":"10.1134/S1069351324700812","DOIUrl":"10.1134/S1069351324700812","url":null,"abstract":"This paper examines the response in geomagnetic-field variations caused by the 2020–2023 earthquakes with magnitudes Mw ≥ 7.0 in the Aegean Sea and eastern Turkey. A detailed comparison of high-precision observations of the geomagnetic field and seismograms recorded at complex geophysical observatories within a radius of 3000 km from the epicenters was carried out. The joint analysis involves averaged 1-s data on the rate of change of the magnetic field and records from broadband seismic stations. Their characteristics are assessed in both in time and frequency domains. The spectral characteristics of body and surface waves are separately compared with those of the geomagnetic signal. It is shown that the beginning of disturbance in the magnetic field at each observatory strictly coincides with the arrival of the P-wave and intensifies with the arrival of S-waves. The maximum geomagnetic disturbance is caused by surface waves. The amplitude of electromagnetic excitations is proportional to the amplitude of the parent seismic phases. Thus, the coseismic nature of the observed electromagnetic signal has been confirmed, suggesting its excitation in the Earth’s crust as seismic waves propagate.","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"60 5","pages":"891 - 902"},"PeriodicalIF":0.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The September 21, 2020 (Mw = 5.6) Bystraya Earthquake at the South-Western Flank of the Baikal Rift Zone: a Milestone in Macroseismology of Eastern Siberia 贝加尔裂谷带西南侧 2020 年 9 月 21 日（Mw = 5.6）Bystraya 地震：东西伯利亚宏观地震学的里程碑

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700861

Ya. B. Radziminovich, A. V. Novopashina, O. F. Lukhneva, N. A. Gileva, E. A. Kuz’mina

{"title":"The September 21, 2020 (Mw = 5.6) Bystraya Earthquake at the South-Western Flank of the Baikal Rift Zone: a Milestone in Macroseismology of Eastern Siberia","authors":"Ya. B. Radziminovich, A. V. Novopashina, O. F. Lukhneva, N. A. Gileva, E. A. Kuz’mina","doi":"10.1134/S1069351324700861","DOIUrl":"10.1134/S1069351324700861","url":null,"abstract":"The article presents analysis of macroseismic data on the September 21, 2020 (Mw = 5.6) Bystraya earthquake, which occurred in the eastern part of the Tunka basins system on the southwestern flank of the Baikal rift zone. Macroseismic data were collected mainly through an Internet questionnaire posted on the website of the Baikal Branch of the Geophysical Survey, Russian Academy Sciences. A total of 3013 eyewitness responses were collected, which is currently an unprecedented number in the entire history of macroseismic observations in the Baikal region. In total, we collected data for 263 Intensity Data Points. The maximal shaking intensity (VI–VII MSK-64) was observed in the Bystraya village and the Kultuk settlement. The shaking intensity V MSK-64 was noted at a distance of up to ~180 km; intensity IV MSK-64 was recorded at a distance of up to ~550 km. Analysis of data on the Bystraya earthquake revealed significantly lower attenuation compared to that expected from the regional macroseismic equation. Due to the large volume of macroseismic data collected, as well as the high efficiency of the data collection method used, the Bystraya earthquake can be considered an important milestone in macroseismic research in East Siberia.","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"60 5","pages":"944 - 959"},"PeriodicalIF":0.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic Emission Events Clustering Parameters in Laboratory Rock Fracture Experiments 实验室岩石破裂实验中的声发射事件聚类参数

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700836

S. D. Matochkina, P. N. Shebalin, V. B. Smirnov, A. V. Ponomarev, P. A. Malyutin

引用次数: 0

Application of Pattern Recognition Methods to Study Spatial Localization of Polymetallic Mineralization in the Altai–Sayan Region 应用模式识别方法研究阿尔泰-萨彦地区多金属矿化的空间定位

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700824

A. I. Gorshkov, O. V. Novikova, A. I. Livinskii

{"title":"Application of Pattern Recognition Methods to Study Spatial Localization of Polymetallic Mineralization in the Altai–Sayan Region","authors":"A. I. Gorshkov, O. V. Novikova, A. I. Livinskii","doi":"10.1134/S1069351324700824","DOIUrl":"10.1134/S1069351324700824","url":null,"abstract":"Abstract—The Altai–Sayan mountain-folded belt is analyzed with the purpose of (1) revealing peculiarities of localization of large-scale polymetallic mineralization in the lineament-block structure of the region and (2) determining the geophysical and geomorphic peculiarities of the locations of these deposits using the Cora-3 pattern recognition algorithm. The lineament-block structure of the region is determined using morphostructural zoning. A spatial correlation between large and superlarge polymetallic deposits and morphostructural nodes is revealed. Based on this correlation, a dichotomy problem is solved, which is to divide the entire set of nodes in the region into two classes—ore-bearing and non-ore bearing. For this purpose, we used the Cora-3 logical recognition algorithm with training, for which the input data are geomorphological and geophysical parameters of the nodes. The training set of the algorithm was composed of the nodes where large and superlarge polymetal deposits are known. At the training stage, the algorithm identified the sets of the characteristic features that are peculiar to each class. Based on these features, all the nodes in the region were divided into ore-bearing and non-ore-bearing ones. As a result of recognition, the nodes in which deposits of the considered types and sizes are known were classified as ore-bearing, and, in addition to them, another 11 nodes were identified that meet the features determined in the work and can be considered potentially ore-bearing.","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"60 5","pages":"903 - 912"},"PeriodicalIF":0.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parameters of the Seismic Regime of the Eastern Sector of the Arctic Zone of the Russian Federation 俄罗斯联邦北极区东段地震带参数

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700770

I. A. Vorobieva, P. N. Shebalin, A. D. Gvishiani, B. A. Dzeboev, B. V. Dzeranov, P. A. Malyutin

引用次数: 0

A Study of Seismic Cycles of the Strongest Earthquakes in Subduction Zones by Satellite Geodesy Methods 利用卫星大地测量方法研究俯冲带最强地震的地震周期

IF 0.9 4区地球科学

Izvestiya, Physics of the Solid Earth Pub Date : 2024-11-22 DOI: 10.1134/S1069351324700745

I. S. Vladimirova

引用次数: 0