On the magnitude and possible return period of the historical earthquake in ancient Savaria, 455 AD (Szombathely, West Hungary)

IF 1.7 4区地球科学 Q2 Earth and Planetary Sciences

Austrian Journal of Earth Sciences Pub Date : 2019-12-01 DOI:10.17738/ajes.2019.0012

P. Varga

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引用次数: 2

Abstract

Abstract In 455 AD a strong, presumably M ≥ 6.0, earthquake occurred in or near the ancient town Savaria, the present Szombathely, West Hungary. According to the certainly incomplete earthquake catalogue, since then no similar significant seismic event occurred during the last 1500 years in this area which is currently considered inactive. Conclusions of this study are: (1) According to contemporary written historical sources (Annales Ravennates and biographical information about the life of Saint Severinus), the earthquake that destroyed Savaria and occurred in 455 AD had a magnitude of M ≥ 6.0. (2) In order to support the aforementioned magnitude value calculations were necessary. As the historical seismicity of the area is not known sufficiently an independent geodynamical approach – in parallel to the Gutenberg-Richter relationship – was used to estimate the return interval of earthquakes M ≥ 6. It was found in both cases that in the Szombathely region the recurrence time of earthquakes M6 and M6.5 is 1000 and 3000 years. Consequently, the earthquake activity of the Szombathely region is significantly lower than that of the Pannonian Basin in general.

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公元455年古萨瓦里亚(西匈牙利Szombathely)历史地震的震级和可能的重现期

摘要公元455年，匈牙利西部萨瓦利亚古城或其附近发生了一次强烈地震，可能是M≥6.0。根据肯定不完整的地震目录，自那以后，在过去1500年中，该地区没有发生类似的重大地震事件，目前该地区被认为是不活跃的。本研究的结论是：（1）根据当代书面史料（《拉文纳特斯编年史》和关于圣塞维里努斯生平的传记资料），公元455年发生的摧毁萨瓦里亚的地震震级M≥6.0。（2）为了支持上述幅度值计算是必要的。由于该地区的历史地震活动性未知，因此采用了独立的地球动力学方法——与古腾堡-里希特关系平行——来估计M≥6级地震的重现期。在这两种情况下都发现，在Szombathly地区，M6和6.5级地震的重现时间分别为1000年和3000年。因此，总的来说，Szombathly地区的地震活动性明显低于Pannonian盆地。

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

Austrian Journal of Earth Sciences Earth and Planetary Sciences-Paleontology

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： AUSTRIAN JOURNAL OF EARTH SCIENCES is the official journal of the Austrian Geological, Mineralogical and Palaeontological Societies, hosted by a country that is famous for its spectacular mountains that are the birthplace for many geological and mineralogical concepts in modern Earth science. AUSTRIAN JOURNAL OF EARTH SCIENCE focuses on all aspects relevant to the geosciences of the Alps, Bohemian Massif and surrounding areas. Contributions on other regions are welcome if they embed their findings into a conceptual framework that relates the contribution to Alpine-type orogens and Alpine regions in general, and are thus relevant to an international audience. Contributions are subject to peer review and editorial control according to SCI guidelines to ensure that the required standard of scientific excellence is maintained.