A Synthetic Earthquake Catalog for the Eastern Sector of the Russian Arctic Zone

IF 0.9 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Journal of Volcanology and Seismology Pub Date : 2025-06-24 DOI:10.1134/S0742046325700083

P. N. Shebalin, A. D. Gvishiani, P. A. Malyutin, E. M. Grekov, A. O. Antipova, I. A. Vorobieva, B. A. Dzeboev, B. V. Dzeranov

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Abstract

In this study we develop a synthetic earthquake catalog for the Eastern Sector of the Russian Arctic Zone (RAZ). The catalog reproduces and simulates the key properties of the catalog that includes all earthquakes that have actually occurred in the region. Considered at the regional level, the Gutenberg–Richter law for earthquakes of different magnitudes holds both for the catalog as a whole and for the mainshock catalog with aftershocks eliminated. Local values of the parameters involved are reproduced. The synthetic catalog includes aftershocks, and local relationships between the numbers of aftershocks and the total number of earthquakes based on the catalog of actual events are retained. Our model for the spatial distribution of large (М ≥ 5.5) earthquakes in the region uses the results of the FCAZ recognition applied to identification of possible locations of future large earthquakes. Preliminary calculations have been performed to find the normative intensity in order to compare three versions of the synthetic catalog (the full model, one without aftershocks, and one that does not include the FCAZ results and aftershocks).

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俄罗斯北极地区东部地区的综合地震目录

在这项研究中，我们为俄罗斯北极地区东部地区（RAZ）开发了一个综合地震目录。该目录再现并模拟了目录的关键属性，其中包括该地区实际发生的所有地震。在区域一级考虑，不同震级地震的古腾堡-里希特定律既适用于整个地震目录，也适用于除去余震的主震目录。所涉及的参数的局部值被复制。合成目录包括余震，并且保留了余震次数与基于实际事件目录的地震总数之间的局部关系。我们的大地震（М≥5.5）在该地区的空间分布模型使用了FCAZ识别的结果，用于识别未来大地震的可能位置。已经进行了初步计算，以找到规范强度，以便比较三个版本的综合目录（完整模型，一个没有余震，一个不包括FCAZ结果和余震）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Volcanology and Seismology 地学-地球化学与地球物理

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Volcanology and Seismology publishes theoretical and experimental studies, communications, and reports on volcanic, seismic, geodynamic, and magmatic processes occurring in the areas of island arcs and other active regions of the Earth. In particular, the journal looks at present-day land and submarine volcanic activity; Neogene–Quaternary volcanism; mechanisms of plutonic activity; the geochemistry of volcanic and postvolcanic processes; geothermal systems in volcanic regions; and seismological monitoring. In addition, the journal surveys earthquakes, volcanic eruptions, and techniques for predicting them.