潘诺尼亚盆地(匈牙利)莫尔地堑附近的地震群:对新构造的影响

IF 1.6 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Journal of Seismology Pub Date : 2023-12-22 DOI:10.1007/s10950-023-10181-5
Barbara Czecze, Dániel Kalmár, Márta Kiszely, Bálint Süle, László Fodor
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引用次数: 0

摘要

潘诺尼亚盆地中部的特点是中低度地震。匈牙利中北部是该国地震最危险的地区之一,其中还包括莫尔海湾地区,该地区曾发生过匈牙利历史上最大的地震。最近在莫尔海湾观察到了地震活动。已经证实,该地块经常发生地震群。为了进一步研究这些活动,我们部署了一个运行 20 个月的临时地震网络。利用临时网络台站以及来自 Kövesligethy Radó 地震观测站和 GeoRisk Ltd. 网络的永久台站,我们记录了 102 次小震级事件。在本文中,我们展示并比较了基于永久和临时台站记录波形的三种不同的事件检测方法,以找到最佳方法来收集莫尔海湾的完整地震群列表。在分层聚类分析之后,我们使用多事件算法重新定位了下伏中心。结果表明,在这种情况下最成功的探测器是 "子空间探测器"。我们成功地创建了一份完整的事件列表。我们的结果表明,莫尔海堑的地震活动依然活跃。
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Earthquake swarms near the Mór Graben, Pannonian Basin (Hungary): implication for neotectonics

The central part of the Pannonian Basin is characterised by low to medium seismicity. North central Hungary is one of the most dangerous areas of the country in terms of earthquakes, which also includes the area of the Mór Graben where some of the largest earthquakes occurred in Hungary’s history. Recent activity has been observed in the Mór Graben. It has been established that earthquake swarms occur quite frequently in the graben. To further study these events, we deployed a temporary seismic network that operated for 20 months. Using the temporary network stations as well as permanent stations from the Kövesligethy Radó Seismological Observatory and the GeoRisk Ltd. networks we registered 102 events of small magnitudes. In this paper, we demonstrate and compare three different event detection methods based on the registered waveforms by the permanent and temporary stations to find the optimal one to collect a complete swarm list in the Mór Graben. After the hierarchical cluster analysis, we relocated the hypocentres using a multiple-event algorithm. Our results demonstrate that the most successful detector in this case is the “Subspace detector.” We managed to create a complete list of the events. Our results indicate that the Mór Graben is still seismically active.

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来源期刊
Journal of Seismology
Journal of Seismology 地学-地球化学与地球物理
CiteScore
3.30
自引率
6.20%
发文量
67
审稿时长
3 months
期刊介绍: Journal of Seismology is an international journal specialising in all observational and theoretical aspects related to earthquake occurrence. Research topics may cover: seismotectonics, seismicity, historical seismicity, seismic source physics, strong ground motion studies, seismic hazard or risk, engineering seismology, physics of fault systems, triggered and induced seismicity, mining seismology, volcano seismology, earthquake prediction, structural investigations ranging from local to regional and global studies with a particular focus on passive experiments.
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